Riskified (RSKD) 20-F 6 Mar 24 2023 FY Annual report (foreign) Financial data

Cover

Cover	12 Months Ended
	Dec. 31, 2023 shares
Document Information [Line Items]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Shell Company Report	false
Entity File Number	001-40692
Entity Registrant Name	Riskified Ltd.
Entity Incorporation, State or Country Code	L3
Entity Address, Address Line One	220 5th Avenue
Entity Address, Address Line Two	2nd Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10001
Entity Address, Country	US
Title of 12(b) Security	Class A ordinary shares, no par value
Trading Symbol	RSKD
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	true
Document Financial Statement Restatement Recovery Analysis [Flag]	false
Document Accounting Standard	U.S. GAAP
Entity Shell Company	false
Amendment Flag	false
Entity Central Index Key	0001851112
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	128,738,857
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	49,814,864
Business Contact
Document Information [Line Items]
Contact Personnel Name	Eido Gal
Entity Address, Address Line One	220 5th Avenue
Entity Address, Address Line Two	2nd Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10001
Entity Address, Country	US
Contact Personnel Email Address	ir@riskified.com

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Firm ID	1281
Auditor Name	KOST FORER GABBAY & KASIERER
Auditor Location	Tel-Aviv, Israel

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 440,838	$ 188,670
Restricted cash	0	2,347
Short-term deposits	5,000	287,000
Accounts receivable, net	46,886	37,547
Prepaid expenses and other current assets	10,607	14,371
Short-term investments	28,968	0
Total current assets	532,299	529,935
Property and equipment, net	15,639	18,586
Operating lease right-of-use assets	29,742	35,158
Deferred contract acquisition costs	15,562	14,383
Other assets, noncurrent	8,690	8,922
Total assets	601,932	606,984
Current liabilities:
Accounts payable	2,573	2,110
Accrued compensation and benefits	24,016	24,134
Guarantee obligations	12,719	12,361
Provision for chargebacks, net	12,092	11,980
Operating lease liabilities, current	5,615	6,214
Accrued expenses and other current liabilities	12,796	15,813
Total current liabilities	69,811	72,612
Operating lease liabilities, noncurrent	25,694	31,202
Other liabilities, noncurrent	14,706	8,734
Total liabilities	110,211	112,548
Commitments and Contingencies
Shareholders’ equity:
Treasury shares at cost, 3,038,865 and zero ordinary shares as of December 31, 2023 and 2022, respectively	(13,155)	0
Additional paid-in capital	916,371	848,609
Accumulated other comprehensive profit (loss)	74	(1,639)
Accumulated deficit	(411,569)	(352,534)
Total shareholders’ equity	491,721	494,436
Total liabilities and shareholders’ equity	601,932	606,984
Common Class A
Shareholders’ equity:
Common stock, value, issued	0	0
Common Class B
Shareholders’ equity:
Common stock, value, issued	$ 0	$ 0

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - ₪ / shares	Dec. 31, 2023	Dec. 31, 2022
Treasury stock (in shares)	3,038,865	0
Common Class A
Common stock, par value (in dollars per share)	₪ 0
Common stock, shares authorized (in dollars per share)		900,000,000
Common stock, shares, issued (in shares)	128,738,857	102,084,746
Common stock, shares, outstanding (in shares)	128,738,857	102,084,746
Common Class B
Common stock, shares authorized (in dollars per share)		232,500,000
Common stock, shares, issued (in shares)	49,814,864	68,945,014
Common stock, shares, outstanding (in shares)	49,814,864	68,945,014

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue	$ 297,610	$ 261,247	$ 229,141
Cost of revenue	145,091	126,150	106,170
Gross profit	152,519	135,097	122,971
Operating expenses:
Research and development	71,577	72,014	55,301
Sales and marketing	88,441	88,438	70,710
General and administrative	69,350	83,993	52,903
Total operating expenses	229,368	244,445	178,914
Operating profit (loss)	(76,849)	(109,348)	(55,943)
Interest income (expense), net	22,775	10,180	591
Other income (expense), net	837	505	(122,520)
Profit (loss) before income taxes	(53,237)	(98,663)	(177,872)
Provision for (benefit from) income taxes	5,798	6,042	1,558
Net profit (loss)	$ (59,035)	$ (104,705)	$ (179,430)
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)		$ 0.62
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)		$ 0.62
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, basic (in shares)	176,773,398	167,667,374	76,459,625
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	176,773,398	167,667,374	76,459,625
Common Class A
Operating expenses:
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, basic (in shares)			38,757,558
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	115,005,250	92,450,867	38,757,558
Common Class B
Operating expenses:
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	61,768,148	75,216,507	37,702,067

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE PROFIT (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net profit (loss)	$ (59,035)	$ (104,705)	$ (179,430)
Other comprehensive profit (loss), net of tax:
Unrealized gains (losses) on derivative instruments, net	1,634	(1,883)	176
Unrealized gains (losses) on available-for-sale debt securities	86	0	0
Foreign currency translation	(7)	68	0
Other comprehensive profit (loss)	1,713	(1,815)	176
Comprehensive profit (loss)	$ (57,322)	$ (106,520)	$ (179,254)

CONSOLIDATED STATEMENTS OF CONV

CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED SHARES AND SHAREHOLDERS’ DEFICIT - USD ($) $ in Thousands	Total	Series E-1 Convertible Preferred Stock [Member]	Common Class A	Common Class B	Series E Convertible Preferred Stock [Member]	Common Stock Common Class A	Common Stock Common Class B	Treasury Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Profit (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020	29,878,116
Beginning balance at Dec. 31, 2020	$ 159,564
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred shares, net of issuance costs (in shares)		962,940			1,450,414
Issuance of convertible preferred shares, net of issuance costs		$ 6,489			$ 50,519
Reclassification of convertible preferred share warrants upon IPO	$ 74,724
Conversion of Preferred Shares into Class A Ordinary Shares upon IPO (in shares)	(32,291,470)
Conversion of convertible preferred shares into Class A ordinary shares upon IPO	$ (291,296)
Ending balance (in shares) at Dec. 31, 2021	0
Ending balance at Dec. 31, 2021	$ 0
Beginning balance (in shares) at Dec. 31, 2020						14,310,552	0
Beginning balance at Dec. 31, 2020	(44,029)					$ 4	$ 0	$ 0	$ 24,366	$ 0	$ (68,399)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Preferred Shares into Ordinary Shares upon IPO (in shares)						32,291,470
Conversion of Preferred Shares into Ordinary Shares upon IPO	291,296								291,296
Reclassification of convertible preferred share warrants upon IPO	35,778								35,778
Issuance of Class A Ordinary Shares upon IPO, net of underwriting discounts and commissions and other issuance costs (in shares)						19,925,000
Issuance of Class A ordinary shares upon IPO, net of underwriting discounts and commissions and other issuance costs	386,591								386,591
Elimination of ordinary share par value and issuance of Class B ordinary shares upon Recapitalization	4					$ (4)			4
Elimination of ordinary share par value and issuance of Class B ordinary shares upon Recapitalization (in shares)							94,431,636
Issuance of ordinary shares upon exercise of share options (in shares)						2,381,269	625,124
Issuance of ordinary shares upon exercise of share options	2,948								2,948
Exchange of Class B ordinary shares to Class A ordinary shares (in shares)						7,001,240	(7,001,240)
Share-based compensation expense	33,489								33,489
Ordinary share warrants issued to a customer	777								777
Other comprehensive profit (loss)	176									176
Net profit (loss)	(179,430)										(179,430)
Ending balance (in shares) at Dec. 31, 2021						75,909,531	88,055,520
Ending balance at Dec. 31, 2021	$ 527,596					$ 0	$ 0	0	775,249	176	(247,829)
Ending balance (in shares) at Dec. 31, 2022	0
Ending balance at Dec. 31, 2022	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Elimination of ordinary share par value and issuance of Class B ordinary shares upon Recapitalization	0
Issuance of ordinary shares upon exercise of share options (in shares)						3,919,606
Issuance of ordinary shares upon exercise of share options	$ 4,059								4,059
Issuance of ordinary shares upon vesting of restricted share units (in shares)						3,145,103
Exchange of Class B ordinary shares to Class A ordinary shares (in shares)	0					19,110,506	(19,110,506)
Share-based compensation expense	$ 67,766								67,766
Ordinary share warrants issued to a customer	1,535								1,535
Other comprehensive profit (loss)	(1,815)									(1,815)
Net profit (loss)	(104,705)										(104,705)
Ending balance (in shares) at Dec. 31, 2022			102,084,746	68,945,014		102,084,746	68,945,014
Ending balance at Dec. 31, 2022	$ 494,436					$ 0	$ 0	0	848,609	(1,639)	(352,534)
Ending balance (in shares) at Dec. 31, 2023	0
Ending balance at Dec. 31, 2023	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Elimination of ordinary share par value and issuance of Class B ordinary shares upon Recapitalization	$ 0
Issuance of ordinary shares upon exercise of share options (in shares)	3,010,478					3,010,478
Issuance of ordinary shares upon exercise of share options	$ 3,816								3,816
Issuance of ordinary shares upon vesting of restricted share units (in shares)						6,365,261
Issuance of ordinary shares upon exercise of warrants (in shares)						1,187,087
Purchase of Treasury shares (in shares)	(3,038,865)					(3,038,865)
Purchase of Treasury shares	$ (13,155)							(13,155)
Exchange of Class B ordinary shares to Class A ordinary shares (in shares)	0					19,130,150	(19,130,150)
Share-based compensation expense	$ 62,410								62,410
Ordinary share warrants issued to a customer	1,536								1,536
Other comprehensive profit (loss)	1,713									1,713
Net profit (loss)	(59,035)										(59,035)
Ending balance (in shares) at Dec. 31, 2023			128,738,857	49,814,864		128,738,857	49,814,864
Ending balance at Dec. 31, 2023	$ 491,721					$ 0	$ 0	$ (13,155)	$ 916,371	$ 74	$ (411,569)

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED SHARES AND SHAREHOLDERS’ DEFICIT (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Series E Convertible Preferred Stock [Member]
Payments of temporary equity issuance costs	$ 819

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net profit (loss)	$ (59,035)	$ (104,705)	$ (179,430)
Adjustments to reconcile net profit (loss) to net cash provided by (used in) operating activities:
Unrealized loss (gain) on foreign currency	(850)	(2,875)	382
Provision for (benefit from) account receivable allowances	198	3	268
Depreciation and amortization	3,568	3,607	1,990
Amortization of capitalized internal-use software costs	1,532	667	446
Amortization of deferred contract costs	9,567	7,135	4,667
Remeasurement of convertible preferred share warrant liabilities	0	0	101,413
Remeasurement of convertible preferred share tranche rights	0	0	21,260
Share-based compensation expense	62,410	67,467	33,358
Operating Lease, Right-of-Use Asset, Amortization Expense	4,605	4,211	0
Interest Income, Deposit with Financial Institution, Increase (Decrease)	2,593	(4,613)	0
Ordinary share warrants issued to a customer	1,536	1,535	777
Other	161	180	(121)
Changes in operating assets and liabilities:
Accounts receivable	(9,685)	(1,715)	1,440
Deferred contract acquisition costs	(8,893)	(9,707)	(7,744)
Prepaid expenses and other assets	(1,618)	4,026	(15,079)
Accounts payable	373	1,931	(832)
Accrued compensation and benefits	(199)	291	8,398
Guarantee obligations	358	249	(333)
Provision for chargebacks, net	112	(40)	1,438
Increase (Decrease) in Operating Lease Liability	(4,580)	(2,609)	0
Accrued expenses and other liabilities	5,126	8,710	7,424
Net cash provided by (used in) operating activities	7,279	(26,252)	(20,278)
Cash flows from investing activities:
Purchases of short-term deposits	(55,000)	(463,750)	(110,000)
Maturities of short-term deposits	337,000	261,750	39,063
Purchases of investments	(29,086)	0	0
Purchases of property and equipment	(1,355)	(6,126)	(12,254)
Capitalized software development costs	0	(1,886)	(1,250)
Net cash provided by (used in) investing activities	251,559	(210,012)	(84,441)
Cash flows from financing activities:
Proceeds from issuance of convertible preferred shares and warrants, net of issuance costs	0	0	26,781
Proceeds from cash exercise of series E-1 convertible preferred share warrants	0	0	6,489
Proceeds from exercise of share options	3,841	4,059	2,948
Proceeds from initial public offering, net of underwriting discounts and commissions	0	0	392,273
Payments of deferred offering costs	0	(204)	(5,302)
Purchases of treasury shares	(13,155)	0	0
Net cash provided by (used in) financing activities	(9,314)	3,855	423,189
Effects of exchange rates on cash, cash equivalents, and restricted cash	297	(1,701)	0
Net increase (decrease) in cash, cash equivalents, and restricted cash	249,821	(234,110)	318,470
Cash, cash equivalents, and restricted cash—beginning of period	191,017	425,127	106,657
Cash, cash equivalents, and restricted cash—end of period	440,838	191,017	425,127
Supplemental disclosures of cash flow information:
Cash paid for interest	0	0	0
Cash paid for income taxes	17	18	647
Payments for Rent	6,080	4,357	0
Operating lease liabilities arising from obtaining right-of-use assets	0	792	0
Adjustment to ROU assets upon modification of existing lease	(811)	0	0
Supplemental disclosures of noncash investing and financing activities:
Purchases of property and equipment during the period included in accounts payable and accrued expenses	97	926	2,042
Share-based compensation capitalized for software development	0	299	131
Software development costs, accrued but not paid	0	0	485
Deferred offering costs accrued but not paid	0	0	204
Conversion of convertible preferred shares into Class A ordinary shares upon IPO	0	0	291,296
Reclassification of convertible preferred share warrants upon IPO	0	0	110,502
Elimination of ordinary share par value and issuance of Class B ordinary shares upon Recapitalization	0	0	4
Reconciliation of cash, cash equivalents, and restricted cash within the consolidated balance sheets to the amounts shown in the consolidated statements of cash flows above:
Cash and cash equivalents	440,838	188,670	418,143
Restricted cash	0	2,347	6,984
Total cash, cash equivalents, and restricted cash	440,838	191,017	425,127
Convertible Preferred Share Tranche Rights [Member]
Supplemental disclosures of noncash investing and financing activities:
Settlement of convertible preferred share tranche rights	$ 0	$ 0	$ 23,738

Organization and Description of

Organization and Description of Business	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	1. Organization and Description of Business Riskified Ltd., together with its subsidiaries, “Riskified”, “we”, “us”, “our” or the “Company,” was incorporated under the laws of the State of Israel in 2012 and commenced operations in January 2013. We have built a next-generation eCommerce risk intelligence platform that allows our customers—online merchants—to create trusted relationships with their consumers. Our core product, the Chargeback Guarantee, is designed to ensure the legitimacy of our merchants’ online orders by approving or denying these orders with guaranteed performance levels that vary by merchant. We guarantee the outcome of our decisions by assuming the cost of fraud associated with each approval. We drive higher sales by raising approval rates and reducing fraud and other operating costs for our merchants and strive to provide superior consumer experiences, as compared to our merchants’ performance prior to onboarding us.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States, or U.S. GAAP, and include the accounts of Riskified Ltd. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Immaterial Prior Period Error Correction During the year ended December 31, 2023, we identified an immaterial error relating to the period over which certain sales commissions were amortized. We assessed the materiality of the error on the financial statements for prior years individually and in the aggregate, and concluded that it was not material to any previously issued consolidated financial statements. We corrected the error by revising the consolidated financial statements appearing herein. The impact of the errors on the Company’s consolidated balance sheet as of January 1, 2021 was an overstatement of deferred contract acquisition costs of $0.7 million and an understatement of accumulated deficit of $0.7 million. There was no impact of the error on the consolidated statements of cash flows for the periods presented. The following tables summarize the effects of the corrections on the Company’s consolidated financial statements for the years ended December 31, 2022 and 2021: Year Ended December 31, 2022 As Previously Reported Adjustment As Revised (in thousands) Deferred contract acquisition costs $ 16,364 $ (1,981) $ 14,383 Accumulated deficit (350,553) (1,981) (352,534) Sales and marketing expenses 87,722 716 88,438 Operating profit (loss) (108,632) (716) (109,348) Profit (loss) before income taxes (97,947) (716) (98,663) Net profit (loss) (103,989) (716) (104,705) Net profit (loss) per share attributable to Class A and B ordinary shareholders, basic and diluted $ 0.62 $ — $ 0.62 Year Ended December 31, 2021 As Previously Reported Adjustment As Revised (in thousands) Deferred contract acquisition costs $ 11,630 $ (1,265) $ 10,365 Accumulated deficit (246,564) (1,265) (247,829) Sales and marketing expenses 70,165 545 70,710 Operating profit (loss) (55,398) (545) (55,943) Profit (loss) before income taxes (177,327) (545) (177,872) Net profit (loss) (178,885) (545) (179,430) Net profit (loss) per share attributable to Class A and B ordinary shareholders, basic and diluted $ (2.34) $ (0.01) $ (2.35) Initial Public Offering On August 2, 2021, we completed our initial public offering (“IPO”), in which we issued and sold 19,925,000 shares of our Class A ordinary shares at an offering price of $21.00 per share, including 2,625,000 shares of our Class A ordinary shares pursuant to the exercise in full of the underwriters’ option to purchase additional shares. We received net proceeds of $386.6 million after deducting underwriting discounts and commissions of $26.2 million, and other issuance costs of $5.7 million. Immediately prior to the closing of the IPO, 962,940 shares of Series E-1 convertible preferred shares were issued upon the exercise of the Series E-1 convertible preferred share warrants. In addition, all convertible preferred shares then outstanding automatically converted into 32,291,470 shares of our Class A ordinary shares. Prior to the IPO, deferred offering costs, which consist primarily of accounting, legal and other fees related to our IPO, were capitalized within other assets, noncurrent in the consolidated balance sheets. Upon the consummation of the IPO, $5.7 million of deferred offering costs were reclassified into shareholders’ equity as an offset against IPO proceeds. Recapitalization On July 28, 2021, we adopted new Articles of Association (“AoA”), in which, among other things, we implemented, upon the closing of the IPO: (i) a dual class ordinary share structure pursuant to which we have two classes of ordinary shares: Class A ordinary shares and Class B ordinary shares. The rights of the holders of our Class A ordinary shares and Class B ordinary shares are identical, except with respect to voting, conversion and transfer rights. Class A ordinary shareholders are entitled to one vote per share and Class B ordinary shareholders are entitled to ten votes per share. The dual class ordinary share structure concentrates voting power with our pre-IPO shareholders. Holders of Class A ordinary shares and Class B ordinary shares will vote together as a single class on all matters (including the election of directors) submitted to a vote of our shareholders, unless otherwise required by law or our amended and restated articles of association; (ii) the elimination of the par value per ordinary share; and (iii) a two-for-one reverse share split of our Class A ordinary shares (the “Reverse Share Split”). Immediately after the effectiveness of the Reverse Share Split, we issued and distributed Class B ordinary shares to holders of the Class A ordinary shares on a two-for-one ratio, such that each holder of Class A ordinary shares received two Class B ordinary shares for each Class A ordinary share (the “Additional Class B Issuance”). The historical financial statements have not been retroactively adjusted for the (i) dual class structure, (ii) elimination of par value, and (iii) Additional Class B Issuance. As a result, all information associated with these items related to our ordinary shares and their associated par value, convertible preferred shares and their associated par value, share options, restricted share units (“RSUs”), and warrants to purchase convertible preferred shares are being presented prospectively. All information related to our ordinary shares and their associated par value, convertible preferred shares and their associated par value, share options, RSUs, and warrants to purchase convertible preferred shares have been retroactively adjusted to give effect to the Reverse Share Split for all periods presented. Treasury Shares In August 2023, the board of directors authorized the Company to repurchase up to $75.0 million of its Class A ordinary shares (the “Repurchase Program”). Costs associated with the acquisition of Class A ordinary shares are presented as Treasury Shares on the consolidated balance sheet as a reduction of shareholders' equity. Refer to Note 10 for more information on the Repurchase Program. Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Actual results could differ materially from these estimates. On an ongoing basis, we evaluate our estimates, including those related to the estimated period of benefit on deferred contract costs, the capitalization of certain costs to fulfill a contract, the allowance for credit losses, the fair value of financial assets and liabilities including the fair value of derivatives and investments, the useful lives of property and equipment, capitalization and estimated useful life of internal-use software, share-based compensation including the determination of the fair value of our ordinary shares (prior to IPO), the fair value of indemnification guarantees and the associated systematic and rational amortization method, provisions for chargebacks, the fair value of convertible preferred share warrant liabilities and convertible preferred share tranche rights (prior to IPO), incremental borrowing rate (“IBR”) used for operating lease right-of-use (“ROU”) assets and operating lease liabilities, and the valuation of deferred tax assets and uncertain tax positions. We base our estimates on assumptions, both historical and forward-looking, trends, and various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Foreign Currency The U.S. dollar is our functional currency and the functional currency of a majority of our subsidiaries. For the subsidiaries where the U.S. dollar is the functional currency, monetary assets and liabilities denominated in currencies other than the U.S. dollar are remeasured into U.S. dollars at exchange rates in effect at the end of each period. Foreign currency transaction gains and losses from these remeasurements are recognized in other income (expense), net, within the consolidated statements of operations. Foreign currency transactions resulted in net gains of $1.4 million, $2.5 million, and $0.2 million for the years ended December 31, 2023, 2022, and 2021, respectively. For subsidiaries where the functional currency is not the U.S. dollar, we use the period-end exchange rates to translate assets and liabilities, the average monthly exchange rates to translate revenue and expenses, and historical exchange rates to translate shareholders’ equity, into U.S. dollars. We record translation gains and losses in accumulated other comprehensive profit (loss) as a component of shareholders’ equity in the consolidated balance sheets. Concentration of Risks Our financial instruments that are exposed to concentrations of credit risk primarily consist of cash and cash equivalents, restricted cash, short-term deposits, short-term investments, accounts receivable and derivative financial instruments. We maintain our cash, cash equivalents, restricted cash, short-term deposits, and short-term investments with high-quality financial institutions mainly in the United States and Israel, the composition of which are regularly monitored by us. We have not experienced any material losses in such accounts. Our derivatives expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the agreement. We seek to mitigate such risk by limiting our counterparties to major financial institutions and by spreading the risk across a number of major financial institutions. In addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored on an ongoing basis. Our customers are online merchants. For accounts receivable, we are exposed to credit risk in the event of nonpayment by online merchants to the extent the amounts are recorded in the consolidated balance sheets. We extend different levels of credit to online merchants and maintain reserves for potential credit losses based upon the expected collectability of accounts receivable. We manage credit risk related to our merchants by performing periodic evaluations of credit worthiness and consumer indebtedness and applying other credit risk monitoring procedures. The following table summarize our merchants that represented 10% or more of Accounts receivable and Revenue: Accounts Receivable Revenue As of December 31, Year Ended December 31, 2023 2022 2023 2022 2021 Customer A 17 % 22 % 11 % 13 % 16 % Customer B 11 % * * * * ________________ * Represents less than 10% Cash, Cash Equivalents, and Restricted Cash Cash and cash equivalents consist of cash in banks, bank deposits, and money market funds. We consider all highly liquid investments, with an original maturity of three months or less at the date of purchase, to be cash equivalents. Our restricted cash primarily consisted of cash deposits to back letters of credit related to certain operating leases. Short-Term Deposits Short-term deposits consist of bank deposits with original maturities between 4 and 12 months and that mature within 12 months of the balance sheet date. Short-term deposits are reported at cost. Short-Term Investments Short-term investments consist of marketable debt securities that we have classified and accounted for as available-for-sale. We determine the appropriate classification of our investments in marketable debt securities at the time of purchase and reevaluate such designation at each balance sheet date. After consideration of our risk versus reward objectives, as well as our liquidity requirements, we may sell these debt securities prior to their effective maturities. As a result, we classify our investments, including those with maturities beyond 12 months, as current assets in the Consolidated Balance Sheets. We carry these securities at fair value, and report the unrealized gains and losses, net of taxes, as a component of shareholders’ equity, except for changes in allowance for expected credit losses, which is recorded in other income (expense), net, within the consolidated statements of operations. We periodically evaluate our available-for-sale debt securities for impairment. If the amortized cost of an individual security exceeds its fair value, we consider our intent to sell the security or whether it is more likely than not that we will be required to sell the security before recovery of its amortized basis. If either of these criteria are met, we write down the security to its fair value and record the impairment charge in other income (expense), net within the consolidated statements of operations. If neither of these criteria are met, we determine whether credit loss exists. Credit loss is estimated by considering changes to the rating of the security by a rating agency, any adverse conditions specifically related to the security, as well as other factors. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. We measure financial assets and liabilities at fair value for each reporting period using a fair value hierarchy which requires us to maximize the use of observable inputs and minimize the use of unobservable inputs. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value: Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 – Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Financial instruments consist of cash and cash equivalents, restricted cash, short-term deposits, short-term investments, accounts receivables, derivative financial instruments, accounts payables, accrued liabilities, indemnification guarantees. Cash and cash equivalents, short-term deposits, restricted cash, accounts receivable, accounts payable, and accrued liabilities are stated at their carrying value, which approximates fair value due to the short time to the expected receipt or payment date. Short-term investments and derivative financial instruments are stated at fair value on a recurring basis as disclosed in Note 4 below. We record indemnification guarantees that we issue upon approving a transaction at fair value when issued using the income approach. To measure this guarantee, we consider the premium that would have been received for the same guarantee if it were issued in a stand-alone transaction. The fair value of these indemnification guarantees is determined based on historical chargeback claims, a risk premium fee that would be required for a third party to assume this liability, and an appropriate discount rate due to the time period between issuance of the guarantee and settlement or expiration. Historical chargeback guarantee claims are not readily observable in the marketplace and are generally classified as Level 3 inputs. Indemnification guarantees are recorded at fair value when issued and not remeasured to fair value each period. Refer to Note 8 below for more information regarding indemnification guarantees. Because of the inherent uncertainty of valuation, the estimated fair value of our financial instruments, in particular our indemnification guarantees, may differ significantly from the values that would have been used had a ready market for the financial instruments existed, and the differences could be material to our consolidated financial statements. Refer to Item 5. “ Operating and Financial Review and Prospects — Critical Accounting Policies and Estimates .” Accounts Receivable, Net Accounts receivable are recorded at the invoiced amount, net of an allowance for credit losses. The allowance for credit losses is based on our assessment of the collectability of accounts. We regularly review the adequacy of the allowance for credit losses based on a combination of factors, including an assessment of the current merchant’s credit worthiness, the age of the balance, the nature and size of the merchant, the financial condition of the merchant, and the amount of any receivables in dispute. Accounts receivable deemed uncollectible are charged against the allowance for credit losses when identified. The allowance for doubtful accounts was $0.5 million and $0.5 million as of December 31, 2023 and 2022, respectively. The following table represents a roll-forward of the allowance for credit losses: Year Ended December 31, 2023 (in thousands) Beginning balance $ 487 Current period provision 198 Uncollectible accounts charged against the allowance (170) Recoveries of amounts previously deemed uncollectible — Ending balance $ 515 Derivative Financial Instruments We enter into derivative instruments to manage risks relating to our ongoing business operations. We enter into foreign currency forward and option contracts with financial institutions to protect against foreign exchange risks attributable to our exposure to changes in the exchange rates of (a) the New Israeli Shekel (“NIS”) against the U.S. dollar and (b) the Euro against the U.S. dollar. Our primary objective in entering into these contracts is to reduce the volatility of forecasted earnings and cash flows associated with changes in foreign currency exchange rates. We do not use derivative instruments for trading or speculative purposes. We account for our derivative instruments as either assets or liabilities and carry them at fair value. The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. Derivative instruments are recorded as either prepaid expenses and other current assets or accrued expenses and other current liabilities in the consolidated balance sheets. We record changes in the fair value of derivative instruments that are designated as hedging instruments in accumulated other comprehensive profit (loss) in the consolidated balance sheets, until the forecasted transaction occurs upon which we reclassify the related gain or loss on the derivative to the same financial statement line item in the consolidated statements of operations to which the derivative relates. Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge monetary assets or liabilities denominated in currencies other than the functional currency of a subsidiary. Changes in the fair value on these contracts, as well as the related costs, are recognized in Other income (expense), net, along with the foreign currency gains and losses on the related monetary assets and liabilities. Refer to Note 5 for additional information. Property and Equipment, Net Property and equipment are stated at cost net of accumulated depreciation and amortization. Depreciation and amortization are calculated using the straight-line method over the estimated useful lives of the respective assets. Expenditures for maintenance and repairs are expensed as incurred. The estimated useful lives of our property and equipment are as follows: Computer equipment 3 years Furniture and office equipment 7 years Leasehold improvements Shorter of remaining lease term or estimated useful life Capitalized Software Costs Costs related to software acquired, developed, or modified solely to meet our internal requirements, with no substantive plans to market such software at the time of development are capitalized. Costs incurred during the preliminary project stage and during the post implementation operational stage are expensed as incurred. Eligible costs incurred during the application development stage of the project are capitalized. Capitalized software development costs are recorded as part of other assets, noncurrent in the consolidated balance sheets. Maintenance costs are expensed as incurred. Capitalized software development costs are amortized on a straight-line basis over the software’s estimated useful life, which is four years and are recorded in cost of revenue in the consolidated statements of operations. As of December 31, 2023 and 2022, we have capitalized $3.5 million, net and $5.0 million, net, respectively, of qualifying software development costs. Amortization expenses related to capitalized software costs were $1.5 million, $0.7 million, and $0.4 million for the years ended December 31, 2023, 2022, and 2021, respectively. Cloud Computing Arrangement Implementation Costs We capitalize certain implementation costs incurred in a cloud computing arrangement during the application development stage pursuant to Accounting Standards Codification, or ASC, 350-40, Internal Use Software. These costs are amortized over the term of the hosting arrangement on a straight-line basis, and are included within operating expenses in the consolidated statements of operations. Costs incurred in the preliminary stages of development are analogous to research and development activities and are expensed as incurred. These capitalized costs are included in other assets, noncurrent in the consolidated balance sheets. We have capitalized $0.7 million and $0.2 million of qualifying cloud computing arrangement implementation costs as of December 31, 2023 and 2022, respectively. Amortization expenses related to capitalized cloud computing arrangement implementation costs were $0.2 million, $0.2 million, and $0.2 million for the years ended December 31, 2023, 2022, and 2021, respectively. Leases Our lease accounting policy under ASC Topic 840, “ Leases ” until January 1, 2022, prior to the adoption of the new lease guidance was as follows: Leases are reviewed and classified as either capital or operating leases at their inception. In certain lease agreements, we may receive renewal or expansion options, rent holidays, and other incentives. For operating leases, we recognize lease costs on a straight-line basis once we take control of the space, without regard to deferred payment terms such as rent holidays that defer the commencement date of required payments. Additionally, incentives received are treated as a reduction of costs over the term of the agreement. On January 1, 2022, we adopted the new lease guidance for our operating lease agreements. Refer to Note 7 below for additional information. Our lease accounting policy under ASC Topic 842, “ ASC 842 ” from January 1, 2022, following the adoption of the new lease guidance is as follows: We determine if an arrangement meets the definition of a lease at the inception of the lease, and leases are classified at commencement as either operating or finance leases. We do not have any finance leases. Operating lease ROU assets represent the right to use an underlying asset for the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease agreement. Operating lease ROU assets are measured based on the discounted present value of the remaining lease payments, initial direct costs incurred and prepaid lease payments, excluding lease incentives received prior to lease commencement. Operating lease liabilities are measured based on the discounted present value of the remaining lease payments. The discounted present value of remaining lease payments is computed using our IBR based on the information available at the commencement date of the lease as our leases generally do not provide an implicit rate. Our IBR was estimated to approximate the interest rate for collateralized borrowing with similar terms and payments and in economic environments where the leased asset was located. The lease term may include options to extend or terminate the lease when it is reasonably certain that we would exercise that option. We made an accounting policy election for lease agreements with a term of 12 months or less and do not recognize operating lease ROU assets and operating lease liabilities in respect of those agreements. Payments under our lease agreements are primarily fixed; however, certain lease agreements contain variable payments, which are expensed as incurred and not included in the operating lease ROU assets and operating lease liabilities. Variable lease payments are mainly comprised of common area maintenance, utilities, real estate taxes, and payments affected by changes in indexes. We elected the practical expedient to not separate lease and non-lease components for our leases. We sublease certain office spaces to third parties. Operating sublease income is recognized on a straight-line basis over the term of the agreement. Impairment of Long-Lived Assets We evaluate the recoverability of long-lived assets, including property and equipment, for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be fully recoverable. Such events and changes may include significant changes in performance relative to expected operating results, significant changes in asset use, significant negative industry or economic trends, and changes in our business strategy. Recoverability of these assets is measured by comparing the carrying amounts with the future undiscounted cash flows that the assets are expected to generate. If such review indicates that the carrying amount of long-lived assets is not recoverable, the carrying amount of such assets is reduced to fair value. We determined that there were no material events or changes in circumstances that indicated that our long-lived assets were impaired during the periods presented. Indemnification Guarantees We provide contractual assurances around the accuracy of our approvals so that our merchants can confidently automate a transaction’s execution. Our contracts obligate us to stand ready to indemnify our merchants for any costs incurred from a chargeback due to fraud (i.e., the “guarantee obligation”). Accordingly, we account for the guarantee obligation as an indemnification under the general provisions of ASC 460, Guarantees , or ASC 460, and recognize a liability at fair value upon approving a transaction at an amount that represents what we would need to pay a third party to relieve ourselves from this obligation. This liability is presented as Guarantee obligations on the consolidated balance sheets and will be released to revenue in the consolidated statements of operations. We are relieved from our guarantee obligation at the earlier of (a) paying a chargeback or (b) expiration of the guarantee which is generally six months from the date of the transaction. We recognize the guarantee obligation as revenue through a systematic and rational amortization method over a six-month period that is representative of our historical pattern of being released from risk under the guarantee obligation. While no individual transaction is probable of a chargeback occurring, when we analyze a portfolio of transactions, if we believe a future chargeback is probable and reasonably estimated, we accrue a liability and an associated expense through cost of revenue in accordance with ASC 450, Contingencies , or ASC 450 . Inputs and assumptions used by management to calculate this provision are based on the transactions approved and the features of those transactions as well as historical information about chargebacks. It is possible that the estimate may change in the near term, and the effect of the change could be material. These liabilities are recorded within Provision for chargebacks, net on the consolidated balance sheets and will be reduced by credits issued or cash paid to merchants. Refer to Note 8 below or Item 5. “ Operating and Financial Review and Prospects — Critical Accounting Policies and Estimates” for additional information. Ordinary Share Warrants Prior to IPO, warrants to purchase our Series B/C and E-1 convertible preferred shares were recorded as a liability at fair value on our consolidated balance sheets as the underlying convertible preferred shares were contingently redeemable, upon a deemed liquidation event that is outside of our control, and therefore could have obligated us to transfer assets. The Series B/C convertible preferred share warrants were remeasured to fair value at the end of each reporting period with changes in fair value recognized as a gain or loss within other income (expense), net in the consolidated statements of operations until the earlier of the exercise of the warrants, the expiration of the warrants, or upon the completion of a qualified IPO. Upon IPO, the Series B/C convertible preferred share warrants were converted to warrants to purchase ordinary shares, and the then outstanding liability was reclassified to additional paid-in capital in the consolidated balance sheets. The warrants to purchase ordinary shares may be exercised any time prior to, and shall expire upon, the earlier of (a) April 29, 2025 or (b) immediately prior to the consummation of certain deemed liquidation events. In November 2023, the outstanding warrants to purchase ordinary shares were exercised. Refer to Note 9. The Series E-1 convertible preferred share warrants were remeasured to fair value at the end of each reporting period with changes in fair value recognized as a gain or loss within other income (expense), net in the consolidated statements of operations until the earlier of the exercise of the warrants, the expiration of the warrants, or the completion of a deemed liquidation event, including a qualified IPO. Upon IPO, the Series E-1 convertible preferred share warrants were automatically exercised. In conjunction with a SaaS Agreement entered into in 2021, we issued a warrant to a customer to purchase ordinary shares. The warrant vests annually, in equal amounts, over a five-year period commencing on the effective date of the SaaS Agreement. The warrant is accounted for as consideration payable to a customer under ASC 606 and will reduce revenue as we recognize revenue under the SaaS Agreement over a period of five years. As of December 31, 2023, the warrant is outstanding. Revenue Recognition We primarily generate revenue by granting merchants access to our eCommerce risk intelligence platform and reviewing and approving eCommerce transactions for legitimacy. Revenue is also generated from the issuance of indemnification guarantees as noted above within “Indemnification Guarantees”. For the majority of our revenue, merchants pay us a percentage of every dollar of the gross merchandise volume, or GMV, that we approve and guarantee on their behalf. Our fee, as determined by our risk-based pricing model, in these situations is a percentage of the GMV of our merchants’ orders that we approve, prior to taxes or other charges. These arrangements do not provide merchants with the right to take possession of our software platform. Rather, merchants are granted continuous access to our software platform under a hosting arrangement over the contractual period. As noted above within “Indemnification Guarantees”, our contracts with our merchants obligate us to review eCommerce transactions for legitimacy as well as to stand ready to indemnify merchants for costs incurred associated with an approved transaction in the event of a chargeback due to fraud. Our fee is allocated between the consideration owed to us for our fraud review service performance obligation accounted for under ASC 606 and the consideration owed to us for issuing indemnification guarantees that are accounted for under ASC 460 and are recorded at fair value. Consideration allocated to fraud review is recognized as revenue over the contract period in the month that the transactions are approved while consideration allocated to the indemnification guarantee is recognized as we are released from risk under the guarantee, generally over a six-month

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue Recognition	3. Revenue Recognition Disaggregation of Revenue The following table summarizes revenue by region in which our merchants’ headquarters are located: Year Ended December 31, 2023 2022 2021 Amount Percentage of Revenue Amount Percentage of Revenue Amount Percentage of Revenue (in thousands, except where indicated) United States $ 182,806 61 % $ 163,920 63 % $ 163,681 71 % Europe, the Middle East and Africa (“EMEA”)* 80,547 27 71,443 27 44,850 20 Asia-Pacific (“APAC”) 16,699 6 12,005 5 7,416 3 Americas 17,558 6 13,879 5 13,194 6 Total revenue $ 297,610 100 % $ 261,247 100 % $ 229,141 100 % _________________ * Revenue recognized from merchants whose headquarters are in Israel, which is our country of domicile, was $1.3 million, $3.3 million, and $2.4 million for the years ended December 31, 2023, 2022, and 2021, respectively. The following table summarizes revenue based on the nature and type of service provided to our merchants: Year Ended December 31, 2023 2022 2021 Amount Percentage of Revenue Amount Percentage of Revenue Amount Percentage of Revenue (in thousands, except where indicated) Fraud review service revenue (ASC 606) $ 167,278 56 % $ 156,040 60 % $ 132,261 58 % Indemnification guarantee service revenue (ASC 460) 130,332 44 105,207 40 96,880 42 Total revenue $ 297,610 100 % $ 261,247 100 % $ 229,141 100 % We primarily generate revenue from our Chargeback Guarantee offering. Revenue generated from other offerings are not material. The allocation of consideration between fraud review service revenue and indemnification guarantee service revenue is a function of the fair value of our chargeback guarantee which represents what we would need to pay a third party to relieve ourselves from our obligations under issued guarantees. The fair value of the chargeback guarantee is primarily determined by utilizing the historical percentage of guarantees issued that resulted in a chargeback plus a risk premium fee that we would have incurred from a third-party in order to relieve ourselves from our legal obligation under the guarantee. Refer to Item 5. “ Operating and Financial Review and Prospects — Critical Accounting Policies and Estimates .” Changes in the percentage of revenue that are recorded as fraud review service revenue and indemnification guarantee service revenue are a function of changes in the aforementioned fair value of the chargeback guarantee and changes in the speed in which we resolve chargeback claims which impacts the systematic and rational approach that we utilize to record revenue associated with our guarantee obligation. Cost to Obtain a Contract The following table represents a roll-forward of deferred contract acquisition costs: Year Ended December 31, 2023 2022 2021 (in thousands) Beginning balance $ 14,383 $ 10,365 $ 6,263 Additions to deferred contract acquisition costs 8,894 9,707 7,744 Amortization of deferred contract acquisition costs (7,715) (5,689) (3,642) Ending balance $ 15,562 $ 14,383 $ 10,365 Cost to Fulfill a Contract The following table represents a roll-forward of deferred contract fulfillment costs that are included within in other assets, noncurrent on the consolidated balance sheets: Year Ended December 31, 2023 2022 2021 (in thousands) Beginning balance $ 3,673 $ 2,930 $ 2,166 Additions to deferred contract fulfillment costs 2,635 2,189 1,789 Amortization of deferred contract fulfillment costs (1,852) (1,446) (1,025) Ending balance $ 4,456 $ 3,673 $ 2,930

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. Fair Value Measurements The following tables present information about our financial instruments that are measured at fair value on a recurring basis: As of December 31, 2023 Fair Value Level 1 Level 2 Level 3 (in thousands) Financial Assets: Government bonds included within short-term investments $ 28,968 $ — $ 28,968 $ — Derivative financial instruments included in prepaid expenses and other current assets 308 — 308 — Total financial assets $ 29,276 $ — $ 29,276 $ — Financial Liabilities: Derivative financial instruments included in accrued expenses and other current liabilities $ 462 $ — $ 462 $ — Total financial liabilities $ 462 $ — $ 462 $ — As of December 31, 2022 Fair Value Level 1 Level 2 Level 3 (in thousands) Financial Liabilities: Derivative financial instruments included in accrued expenses and other current liabilities $ 2,397 $ — $ 2,397 $ — Total financial liabilities $ 2,397 $ — $ 2,397 $ — As of December 31, 2023 and 2022, we did not have any Level 3 financial instruments that are measured at fair value on a recurring basis. We classify our derivative financial instruments and government bonds within Level 2 of the fair value hierarchy because they are valued using inputs other than quoted prices which are directly or indirectly observable in the market, including readily-available pricing sources for the identical underlying security which may not be actively traded. Refer to Note 5 for more information regarding our derivative financial instruments. Refer to Note 8 below for more information regarding the fair value of our indemnification guarantees. Debt Securities Short-term investments consisted of the following: As of December 31, 2023 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (in thousands) Government bonds $ 28,882 $ 229 $ (143) $ 28,968 Total short-term investments $ 28,882 $ 229 $ (143) $ 28,968 There were no short-term investments as of December 31, 2022. The following table summarizes the estimated fair value of investments in available-for-sale marketable debt securities by effective contractual maturity dates: As of December 31, 2023 Due in 1 year or less $ 28,968 Total $ 28,968

Derivative Instruments and Hedg

Derivative Instruments and Hedging	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging	5. Derivative Financial Instruments and Hedging Notional Amount of Foreign Currency Contracts Our foreign currency contracts are denominated in NIS and Euro. The gross notional amounts of outstanding foreign currency contracts in U.S. dollar were as follows: As of December 31, 2023 2022 (in thousands) Derivatives Designated as Hedging Instruments: Foreign currency contracts $ 63,716 $ 63,998 Derivatives Not Designated as Hedging Instruments: Foreign currency contracts 10,314 13,814 Total derivative instruments $ 74,030 $ 77,812 Effect of Foreign Currency Contracts on the Consolidated Statements of Operations The effect of foreign currency contracts on the Consolidated Statements of Operations during the periods presented were as follows: Derivatives Designated as Hedging Instruments Derivatives Not Designated as Hedging Instruments Year Ended December 31, Year Ended December 31, 2023 2022 2021 2023 2022 2021 (in thousands) Statement of Operations Location: Revenue $ 168 $ — $ — $ — $ — $ — Cost of revenue (146) (175) — — — — Research and development (2,659) (1,718) — — — — Sales and marketing (1,051) (732) — — — — General and administrative (1,263) (706) — — — — Other income (expense), net — — — (534) (1,659) 59 Total gain (loss) recognized in earnings $ (4,951) $ (3,331) $ — $ (534) $ (1,659) $ 59 Effect of Foreign Currency Contracts on Accumulated Other Comprehensive Profit (Loss) The following table represents the net unrealized gains (losses) of foreign currency contracts designated as hedging instruments, net of tax, that were recorded in accumulated other comprehensive profit (loss) during the periods presented, and their effect on other comprehensive profit (loss) for the periods presented: Net Unrealized Gains (Losses) on Derivatives Designated as Hedging Instruments (in thousands) Balance as of December 31, 2020 $ — Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss) 176 Amount of net gains (losses) reclassified from accumulated other comprehensive profit (loss) to earnings — Other comprehensive profit (loss) 176 Balance as of December 31, 2021 176 Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss) 1,448 Amount of net gains (losses) reclassified from accumulated other comprehensive profit (loss) to earnings (3,331) Other comprehensive profit (loss) (1,883) Balance as of December 31, 2022 $ (1,707) Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss) 6,585 Amount of net gains (losses) reclassified from accumulated other comprehensive profit (loss) to earnings (4,951) Other comprehensive profit (loss) 1,634 Balance as of December 31, 2023 $ (73) As of December 31, 2021, net deferred gains totaled $0.2 million and were recognized during the year ended December 31, 2022 in the same financial statement line item as the hedged items. As of December 31, 2022, $1.7 million of net deferred losses were recorded in accumulated other comprehensive profit (loss) and were recognized during the year ended December 31, 2023 in the same financial statement line item as the hedged items. As of December 31, 2023, $0.1 million of net deferred losses were recorded in accumulated other comprehensive profit (loss) of which all are expected to be recognized in the same financial statement line item in the Consolidated Statements of Operations to which the derivative relates over the next twelve months.

Consolidated Balance Sheet Comp

Consolidated Balance Sheet Components	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidated Balance Sheet Components	6. Consolidated Balance Sheet Components Property and Equipment, Net Property and equipment, net consisted of the following: As of December 31, 2023 2022 (in thousands) Computer equipment $ 6,592 $ 6,912 Furniture and office equipment 2,593 2,531 Leasehold improvements 16,702 16,576 Property and equipment, gross 25,887 26,019 Less: accumulated depreciation and amortization (10,248) (7,433) Property and equipment, net $ 15,639 $ 18,586 Depreciation and amortization expenses were $3.6 million, $3.4 million, and $1.8 million for the years ended December 31, 2023, 2022, and 2021, respectively. The following table presents our property and equipment, net of depreciation and amortization, by geographic region: As of December 31, 2023 2022 (in thousands) Israel $ 14,209 $ 16,671 United States 1,403 1,796 Rest of world 27 119 Total property and equipment, net $ 15,639 $ 18,586 Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of the following: As of December 31, 2023 2022 (in thousands) Accrued expenses $ 4,548 $ 6,175 Customer credits 6,724 5,388 Derivative financial instruments 462 2,397 Other 1,062 1,853 Accrued expenses and other current liabilities $ 12,796 $ 15,813 Other Liabilities, Noncurrent Other liabilities, noncurrent consisted of the following: As of December 31, 2023 2022 (in thousands) Other tax liabilities $ 14,706 $ 8,734 Other liabilities, noncurrent $ 14,706 $ 8,734

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Leases	7. Leases We have non-cancelable operating leases for our corporate offices in Tel Aviv, Israel and in New York, New York in the United States. The leases for these facilities in Tel Aviv and New York expire in 2031 and 2029, respectively and we have options to renew these leases through 2036 and 2034, respectively. These renewal options are excluded from the calculation of operating lease ROU assets and operating lease liabilities. We sublease a portion of our office space in Tel Aviv and New York. The components of operating lease cost for the years ended December 31, 2023 and 2022 were as follows: Year Ended December 31, 2023 2022 (in thousands) Operating lease cost $ 6,242 $ 6,140 Variable lease cost 1,010 1,257 Short-term lease cost 170 304 Sublease income (1,347) (786) Total operating lease cost $ 6,075 $ 6,915 Our lease costs prior to the adoption of ASC 842 were $5.9 million for the year ended December 31, 2021. Sublease income was $0.1 million for the year ended December 31, 2021. As of December 31, 2023, the weighted average remaining lease term and the weighted average discount rate for our operating leases were 6.5 years and 4.6%, respectively. As of December 31, 2022, the weighted average remaining lease term and the weighted average discount rate for our operating leases were 7.4 years and 4.6%, respectively. The future minimum lease payments included in the measurement of our operating lease liabilities as of December 31, 2023, were as follows: Amount Year Ending December 31, 2024 $ 5,744 2025 5,714 2026 5,759 2027 5,804 2028 5,851 Thereafter 7,183 Total undiscounted lease payments 36,055 Less: imputed interest (4,746) Present value of operating lease liabilities $ 31,309 The following table presents our operating lease ROU assets by geographic region: As of December 31, 2023 2022 (in thousands) Israel $ 18,782 $ 22,560 United States 10,960 12,598 Total operating lease right-of-use assets $ 29,742 $ 35,158 Excluded from the tables above is an unsecured and undated promissory note issued in December 2020 in connection with the execution of a lease agreement for an amount of $2.9 million and $3.0 million as of December 31, 2023 and 2022, respectively. The promissory note may only be withdrawn in the event of a material and fundamental breach of the lease agreement. The promissory note expires three months after the lease termination date. As of December 31, 2023 and 2022, we were in full compliance of the terms and conditions of the promissory note, and the promissory note has not been withdrawn.

Guarantees, Commitments, and Co

Guarantees, Commitments, and Contingencies	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Guarantees, Commitments, and Contingencies	8. Guarantees, Commitments, and Contingencies Indemnification Guarantees We provide contractual assurances around the accuracy of our approvals so that our merchants can confidently automate a transaction’s execution. Our contracts obligate us to stand ready to indemnify our merchants for any costs incurred from a chargeback due to fraud. Accordingly, we account for the guarantee obligation as an indemnification under the general provisions of ASC 460 and recognize a liability at fair value upon approving a transaction at an amount that represents what we would need to pay a third party to relieve ourselves from this obligation. This liability is presented as Guarantee obligations on the consolidated balance sheets and was $12.7 million and $12.4 million as of December 31, 2023 and 2022, respectively, and will be released to revenue in the consolidated statements of operations. We are relieved from our guarantee obligation at the earlier of (a) paying a chargeback or (b) expiration of the guarantee which is generally six months from the date of the transaction. We recognize the guarantee obligation as revenue through a systematic and rational amortization method over a six-month period that is representative of our historical pattern of being relieved from our guarantee obligation. Our provision for chargebacks includes amounts associated with chargebacks that have been submitted and accepted but not yet paid by us as of the balance sheet date as well as estimates of chargebacks that have not yet been submitted and accepted relating to approved transactions that are accounted for under ASC 450, Contingencies . While no individual transaction is probable of a chargeback occurring, when we analyze a portfolio of transactions, if we believe a future chargeback is probable and reasonably estimated, we accrue a liability and an associated expense through cost of revenue. Inputs and assumptions used by management to calculate the provision are based on the transactions approved and the features of those transactions as well as historical information about chargebacks. It is possible that the estimate may change in the near term, and the effect of the change could be material. Provision for chargebacks, net on the consolidated balance sheets were $12.1 million and $12.0 million as of December 31, 2023 and 2022, respectively, and will be reduced by credits issued or cash paid to merchants. As of December 31, 2023, our portfolio of potential chargeback liabilities was diversified across numerous industries, hundreds of merchants, and millions of individual transactions. The maximum potential payment to our merchants for these guarantees at a point in time, if every order we approved was fraudulent, is generally the aggregate approved transaction amount excluding cancelled orders, orders that have expired guarantees, and orders for which guarantees have already been paid. As of December 31, 2023, there was $57.2 billion in outstanding indemnification guarantees. Historically, we have had to pay approximately 0.1% of guarantees that we have issued and net chargeback expenses for the years ended December 31, 2023, 2022, and 2021, were $121.8 million, $103.2 million, and $85.5 million, respectively, which was in line with our budgets for the associated periods. Non-Cancelable Purchase Obligations In the normal course of business, we enter into non-cancelable purchase commitments with various parties primarily for hosting and software services. As of December 31, 2023, we had outstanding non-cancelable purchase obligations with a term of 12 months or longer as follows: Amount (in thousands) Year Ending December 31, 2024 $ 1,106 2025 512 2026 96 Total $ 1,714 Other Indemnifications and Contingencies In the ordinary course of business, we agree to indemnify certain parties. In our merchant agreements, we have agreed to indemnify, defend, and hold harmless the indemnified party for third-party claims and related losses suffered or incurred by the indemnified party from actual or threatened third-party intellectual property infringement claims. For certain large or strategic merchants, we have agreed to indemnify, defend and hold harmless the indemnified party for non-compliance with certain additional representations and warranties made by us. In addition, we have entered into indemnification agreements with our directors and certain officers. As we have a limited history of prior indemnification claims and the payments we have made under such agreements have not had a material adverse effect on our results of operations, cash flows, or financial position, we are unable to reasonably estimate the maximum potential amount of future payments related to these indemnification agreements. However, to the extent that valid indemnification claims arise in the future, future payments by us could be significant and could have a material adverse effect on our results of operations or cash flows in a particular period. As of December 31, 2023 and 2022, we did not have any material indemnification claims that were probable or reasonably possible. Legal Proceedings Occasionally we may be subject to various proceedings, lawsuits, disputes, or claims. We investigate these claims as they arise and accrue liabilities when losses are probable and reasonably estimated. In May 2022, a putative securities class action complaint was filed in federal court in the United States by certain of our shareholders against us, certain of our current and former officers and directors, and our underwriters alleging violations of the Securities Act in connection with our IPO-related disclosures, and seeking unspecified damages. The lawsuit was captioned In re Riskified Ltd. Securities Litigation , 22 Civ. 3545 (DLC) (S.D.N.Y.). Plaintiffs filed an amended complaint on September 15, 2022. We moved to dismiss the amended complaint on October 28, 2022. On June 2, 2023, the Court granted our motion to dismiss the complaint in its entirety, with prejudice. The deadline to appeal has passed and the judgment is now final. Although claims are inherently unpredictable, we are currently not aware of any matters that, if determined adversely to us, would individually or taken together, have a material adverse effect on our business, financial position, results of operations, or cash flows.

Temporary Equity

Temporary Equity	12 Months Ended
	Dec. 31, 2023
Temporary Equity Disclosure [Abstract]
Convertible Preferred Shares	9. Ordinary Share Warrants In November 2023, 1,187,087 Class A shares were issued upon the cashless exercise of the outstanding warrants to purchase ordinary shares. As of December 31, 2023 and 2022, the following warrants were issued and outstanding: As of December 31, 2023 Issued and Outstanding Share Warrants Weighted-Average Exercise Price Expiration Date Class A Ordinary Shares Class B Ordinary Shares Class A Ordinary Shares Class B Ordinary Shares Warrants issued to customers 499,500 — $ 0.01 $ — June 2028 Total 499,500 —

Ordinary Shares and Equity Ince

Ordinary Shares and Equity Incentive Plan	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Ordinary Shares and Equity Incentive Plan	10. Ordinary Shares and Equity Incentive Plan Ordinary Shares Upon the completion of the IPO, our amended and restated AoA became effective, which authorized the issuance of up to 900,000,000 Class A ordinary shares with no par value and 232,500,000 Class B ordinary shares with no par value, respectively. We have the following ordinary shares reserved for future issuance: As of December 31, 2023 2022 Warrants to purchase ordinary shares (1) 499,500 1,775,475 Share options and RSUs issued and outstanding under the 2013 Plan 15,981,269 20,062,824 Share options and RSUs issued and outstanding under the 2021 Plan 16,299,528 13,134,652 Remaining shares available for future issuance under the 2021 Plan 8,766,560 8,674,132 Total ordinary shares reserved 41,546,857 43,647,083 _________________ (1) Includes the warrants to purchase ordinary shares and warrants issued to customers. Treasury Shares In August 2023, the board of directors authorized the Company to repurchase up to $75.0 million of its Class A ordinary shares. We received approval for the implementation of our Repurchase Program from the Tel Aviv District Court Economic Department (“Israeli Court”) on November 20, 2023. The Israeli Court approval is valid through May 19, 2024. We may file extension requests with the Israeli Court on an ongoing basis as required. During the year ended December 31, 2023, we repurchased 3,038,865 outstanding Class A ordinary shares for $13.2 million, including transaction costs of approximately $0.1 million, through our Repurchase Program. These shares are classified as Treasury Shares on our consolidated balance sheet. The Repurchase Program authorizes us to repurchase Class A ordinary shares, from time to time in the open market, in privately negotiated transactions or by other means in accordance with U.S. federal securities laws. The timing, as well as the number and value of any shares repurchased under the program, will be determined at our discretion under the Board authorized program and will depend on a variety of factors, including management's assessment of the intrinsic value of our ordinary shares, the market price of our ordinary shares, general market and economic conditions, available liquidity, alternative investment opportunities, and applicable legal requirements. The Repurchase Program does not obligate us to repurchase any specific number of shares and may be suspended, modified or discontinued at any time without prior notice. The share repurchases will be funded from existing cash and cash equivalents. Equity Incentive Plan The 2013 Equity Incentive Plan, or the 2013 Plan, was adopted by our board of directors on July 3, 2013 and amended and restated on February 23, 2021. The 2013 Plan provided for the grant of equity-based incentive awards to our employees, directors, office holders and consultants. The U.S. Sub-Plan to the 2013 Plan, which is to be read as a continuation of the 2013 Plan, was adopted by our board of directors on May 10, 2015 and amended and restated on February 23, 2021. The U.S. Sub-Plan governed equity-based incentive awards granted to our United States employees, directors, office holders and consultants, including those who are deemed to be residents of the United States for tax purposes. We no longer grant any awards under our 2013 Plan as it was superseded by the 2021 Share Incentive Plan, or the 2021 Plan. Awards granted prior to the adoption of the 2021 Plan remain outstanding and are governed by the 2013 Plan. The 2021 Plan was adopted in connection with our IPO on July 15, 2021. The 2021 Plan provides for the grant of equity-based incentive awards to our employees, directors, office holders, service providers and consultants. The maximum number of Class A ordinary shares available for issuance under the 2021 Plan is equal to the sum of (i) 13,951,037 Class A ordinary shares, (ii) any shares subject to awards under the 2013 Plan which have expired, or were cancelled, terminated, forfeited or settled in cash in lieu of issuance of shares or became unexercisable without having been fully exercised and (iii) an annual increase on the first day of each year beginning in 2022 and on January 1st of each calendar year thereafter during the term of the 2021 Plan, equal to the lesser of (A) 5% of the outstanding Class A ordinary shares of the Company on the last day of the immediately preceding calendar year (calculated on a fully diluted, as converted basis); and (B) such amount as determined by our board of directors if so determined prior to January 1 of a calendar year, provided that no more than 13,951,037 Class A ordinary shares may be issued upon the exercise of incentive share options. Share Options and Shares Available for Grant Share options generally vest over four years and expire ten years after the date of grant. We issue Class A ordinary shares upon exercise of share options. A summary of share options under our equity incentive plan and related information is as follows: Share Options Outstanding Outstanding Share Options Weighted-Average Exercise Weighted-Average Remaining Contractual Life (Years) Aggregate Intrinsic (in thousands, except share, life and per share data) Balance as of December 31, 2022 13,785,214 $ 2.17 6.1 $ 34,326 Options exercised (3,010,478) $ 1.22 Options forfeited (405,202) $ 3.72 Balance as of December 31, 2023 10,369,534 $ 2.39 5.5 $ 24,303 Exercisable as of December 31, 2023 8,849,876 $ 2.13 5.2 $ 22,904 There were no share options granted during the years ended December 31, 2023 or December 31, 2022. The weighted-average grant date fair value of share options granted during the year ended December 31, 2021 was $16.63. The aggregate grant date fair value of share options vested during the years ended December 31, 2023, 2022, and 2021 were $6.9 million, $12.0 million, and $3.2 million, respectively. The total intrinsic value of share options exercised during the years ended December 31, 2023, 2022, and 2021 were $11.3 million, $17.4 million, and $68.6 million, respectively. As of December 31, 2023, unrecognized share-based compensation cost related to unvested share options was $6.4 million, which is expected to be recognized over a weighted-average period of 1.3 years. The Black-Scholes assumptions used to value the employee share options at the grant dates are as follows: Year Ended December 31, 2021 Expected term (years) 5.44 - 6.60 Expected volatility 67.26% - 68.52% Risk-free interest rate 0.99% - 1.12% Expected dividend yield 0.00% These assumptions and estimates were determined as follows: • Fair Value of Ordinary Shares - Prior to IPO, the fair value was determined by our board of directors, with input from management and valuation reports prepared by third-party valuation specialists. Post IPO, the fair value of each ordinary share was based on the closing price of our publicly traded ordinary shares as reported on the date of the grant. • Expected Term - The expected term represents the period that the share options are expected to be outstanding. For share option grants that are considered to be “plain vanilla,” we determine the expected term using the simplified method. The simplified method deems the term to be the average of the time-to-vesting and the contractual life of the share options. • Expected Volatility - As we have a short trading history for our ordinary shares, the expected volatility is derived from the average historical share volatilities of several unrelated public companies within our industry that we consider to be comparable to our own business over a period equivalent to the option’s expected term. • Risk-Free Interest Rate - The risk-free rate for the expected term of the share options are based on the yields of U.S. Treasury securities with maturities appropriate for the expected term of employee share option awards. • Expected Dividend Yield. - We have never declared or paid any cash dividends and do not presently plan to pay cash dividends in the foreseeable future. As a result, an expected dividend yield of zero percent was used. Restricted Share Units RSUs vest either upon the satisfaction of service-based vesting conditions, the satisfaction of both service-based and performance-based vesting conditions, or the satisfaction of service-based, performance-based, and market-based vesting conditions. Refer to Note 2 for more information regarding the vesting conditions of our RSUs. RSUs granted under the 2013 Plan can only vest prior to the expiration date of the award which is seven years from the date of grant. Any RSUs that have not vested will automatically terminate on their expiration date. RSUs granted under the 2021 Plan do not have an expiration date. A summary of RSU activity, including activity under our equity incentive plan, and related information is as follows: Number of Shares Weighted-Average Unvested as of December 31, 2022 19,412,262 $ 9.06 Granted 10,904,664 $ 5.43 Vested (6,365,261) $ 7.28 Forfeited (2,040,402) $ 6.31 Unvested as of December 31, 2023 21,911,263 $ 8.02 As of December 31, 2023, total unrecognized share-based compensation expense related to unvested RSUs was approximately $115.0 million, which is expected to be recognized over a weighted-average period of 3.3 years. 2021 Employee Share Purchase Plan We adopted the 2021 Employee Share Purchase Plan, or ESPP, in connection with our IPO on July 15, 2021, to enable eligible employees of the company and certain of its designated subsidiaries to use payroll deductions to purchase the company’s Class A ordinary shares and thereby acquire ownership interests in the Company. A total of 3,742,961 Class A ordinary shares are available for sale under the ESPP, subject to adjustment as provided for in the ESPP. In addition, on the first day of each fiscal year beginning on January 1, 2022 and ending on and including January 1, 2031, such pool of Class A ordinary shares shall be increased by that number of our Class A ordinary shares equal to the lesser of: (i) 1% of the outstanding Class A ordinary shares as of the last day of the immediately preceding fiscal year (calculated on a fully diluted as-converted basis); or (ii) such smaller amount as our board of directors may determine. In accordance with the above, our board of directors determined not to increase the number of Class A ordinary shares available for sale under the ESPP as of January 1, 2022, January 1, 2023, or January 1, 2024. Generally, all of our employees are eligible to participate if they are employed by us. However, an employee may not be granted rights to purchase our ordinary shares under the ESPP if such employee (i) immediately after the grant would own capital shares or hold outstanding share options to purchase such shares possessing 5% or more of the total combined voting power or value of all classes of our shares or any of our subsidiaries. As of December 31, 2023, we have not effected any offering under the ESPP. CEO Multi-Year Equity Award In July 2021, our board of directors and shareholders granted to our chief executive officer, Mr. Gal, a multi-year equity award, comprising 3,993,440 RSUs (the “Multi-Year Award”). The grant date fair value of the Multi-Year Award, which is the amount of share-based compensation expense that we recognize, is primarily determined based on the share price on the date the award was granted and is not based on our current share price. This amount is expensed utilizing the accelerated attribution method over the requisite service period of ten years. This method attributes higher expenses to the earlier periods of the requisite service period. The Multi-Year Award is structured so that meaningful value may only be realized upon the achievement of sustained and significant high performance levels. The award is divided into ten tranches that are eligible to vest based on the achievement of stock price goals, which range from $26.67 to $106.67, measured based on the average of our stock price over a trailing 60 trading day period during predefined performance periods, subject to Mr. Gal’s continued employment as our chief executive officer through each such period. In order to earn all of the tranches, the stock price will have to be more than 5 times higher than the price at IPO. No tranches of the Multi-Year Award were earned or vested in 2023. In addition to the service-based vesting condition, and market-based vesting condition, each described above, the Multi-Year Award is also subject to a performance-based vesting condition. The performance-based vesting condition underlying the Multi-Year Award was satisfied upon the occurrence of our IPO in 2021. We recognized $8.6 million, $13.0 million, and $6.0 million in share-based compensation expense related to the Multi-Year Award during the years ended December 31, 2023, 2022, and 2021, respectively. Share-Based Compensation Share-based compensation expense by line item in the consolidated statements of operations is summarized as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Cost of revenue $ 770 $ 621 $ 216 Research and development 13,152 10,005 4,246 Sales and marketing 19,420 18,253 10,710 General and administrative 29,068 38,588 18,186 Total share-based compensation expense $ 62,410 $ 67,467 $ 33,358

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes Ordinary taxable income in Israel is subject to a corporate tax rate of 23%. However, the effective tax rate payable by a company that derives income from a Preferred Technological Enterprise (as discussed below) may be considerably less. Capital gains (which are not ‘Inflationary Surplus’, as described below) derived by an Israeli company are generally subject to the prevailing corporate tax rate. Law for the Encouragement of Capital Investments, 1959 The Law for the Encouragement of Capital Investments, 1959, generally referred to as the Investment Law, provides certain incentives for capital investments in production facilities (or other eligible assets). The Investment Law was significantly amended effective on April 1, 2005, January 1, 2011, and on January 1, 2017, or the 2017 Amendment. The 2017 Amendment introduces new benefits for Technological Enterprises, alongside the existing tax benefits. The 2017 Amendment was enacted as part of the Economic Efficiency Law that was published on December 29, 2016, and is effective as of January 1, 2017. The 2017 Amendment included new tax benefits for “Technological Enterprises,” as described below, and is in addition to the other existing tax beneficial programs under the Investment Law. The 2017 Amendment provides that a technology company satisfying certain conditions should qualify as a “Preferred Technology Enterprises,” or PTE, granting a 12% tax rate in central Israel on income deriving from Benefited Intangible Assets, subject to a number of conditions being fulfilled, including a minimal amount or ratio of annual R&D expenditure and R&D employees, as well as having at least 25% of annual income derived from exports to large markets. PTE is defined as an enterprise which meets the aforementioned conditions and for which total consolidated revenues of its parent company and all subsidiaries are less than NIS 10 billion. The Company has not adopted the PTE status currently, but believe we are eligible for the PTE status in future tax years and have tax-effected our Israel deferred tax assets and liabilities at the appropriate PTE rates. Our subsidiaries are separately taxed under the domestic tax laws of the jurisdiction of incorporation of each entity. Profit (loss) before the provision for income taxes consisted of the following for the years ended December 31, 2023, 2022, and 2021: Year Ended December 31, 2023 2022 2021 (in thousands) Israel $ (23,269) $ (55,414) $ (154,549) International (29,968) (43,249) (23,323) Total $ (53,237) $ (98,663) $ (177,872) The provision for income taxes was as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Current: Israel $ (225) $ 4 $ 4 International 6,039 8,715 121 Total current income tax expense 5,814 8,719 125 Deferred: Israel — — — International (16) (2,677) 1,433 Total deferred income tax expense (16) (2,677) 1,433 Total provision for income taxes $ 5,798 $ 6,042 $ 1,558 A reconciliation of our statutory income tax expense to our effective income tax provision is as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Israel tax benefit at statutory rate $ (12,245) $ (22,528) $ (40,784) Preferred enterprise 1,652 10,573 3,052 Foreign rate differential (785) (1,050) 912 Share-based compensation 8,158 9,717 1,753 Warrant revaluation — — 23,325 Tranche right revaluation — — 4,890 Prior year tax income/(expense) (302) (6,675) 84 Permanent differences 587 (3,351) 98 Uncertain tax position 5,772 7,233 3,784 Change in valuation allowance 2,961 12,123 4,444 Total $ 5,798 $ 6,042 $ 1,558 Our effective tax rate was (10.89)% for the year ended December 31, 2023, compared to an effective tax rate of (6.12)% for the year ended December 31, 2022 and (0.88)% for the year ended December 31, 2021. The effective tax rates for the periods presented are primarily comprised of Israel statutory taxes, warrant revaluation, share-based compensation expense, uncertain tax positions, and changes in valuation allowance position. The difference in the effective tax rate of (10.89)% for the year ended December 31, 2023 as compared to the effective tax rate of (6.12)% for the year ended December 31, 2022 and (0.88)% for the year ended December 31, 2021 was related to non-deductible share-based compensation, prior period adjustments, uncertain tax positions, and change in valuation allowance position in Israel and in our U.S. subsidiary. The provision for income taxes was $5.8 million, $6.0 million and $1.6 million for the years ended December 31, 2023, 2022, and 2021, respectively. The provision for income taxes for the year ended December 31, 2023 consisted primarily of income taxes related to the United States and other foreign jurisdictions in which we conduct business. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The following table presents the significant components of our deferred tax assets and liabilities: Year Ended December 31, 2023 2022 2021 (in thousands) Deferred tax assets: Research and development expenses $ 7,550 $ 7,374 $ 1,436 Net operating loss 10,333 9,059 5,212 Deferred Compensation 6,762 5,214 1,009 Operating lease liabilities 5,565 6,456 — Vacation and convalescence 746 730 799 Bad debts 84 78 93 Other 1,946 2,166 466 Gross deferred tax assets 32,986 31,077 9,015 Valuation allowance (23,783) (20,822) (8,699) Total deferred tax assets 9,203 10,255 316 Deferred tax liabilities: Operating lease right-of-use assets (5,577) (6,387) — Deferred contract acquisition costs (2,971) (3,009) (2,324) Property and equipment (109) (279) (283) Capitalized Software (541) (591) (397) Gross deferred tax liabilities (9,198) (10,266) (3,004) Net deferred tax assets/(liabilities) $ 5 $ (11) $ (2,688) As of December 31, 2023 and 2022, we had Israel net operating loss, or NOL, carryforwards of approximately $75.7 million and $68.9 million, respectively, which do not expire. As of December 31, 2023 and 2022, we had U.S. Federal NOL carryforwards of approximately $11.7 million and $11.2 million respectively, which do not expire. As of December 31, 2023, we had U.S. State NOL carryforwards of approximately $24.8 million, of which $23.3 million expire between 2028 and 2043, and the remaining $1.5 million do not expire. As of December 31, 2022, we had U.S. State NOL carryforwards of approximately $16.6 million, of which $15.4 million expire between 2027 and 2042, and the remaining $1.2 million do not expire. During the years ended December 31, 2023, 2022, and 2021 the net change in the valuation allowance against deferred tax assets amounted to an increase of $3.0 million, an increase of $12.1 million, and an increase of $4.4 million, respectively. The increase in the valuation allowance during the years ended December 31, 2023, December 31, 2022 and December 31, 2021 was largely attributable to the generation of Israel NOLs, and certain US state NOLs. In establishing deferred income tax assets and liabilities, management makes judgments based on the enacted tax laws and published tax guidance applicable to us as well as the amount and jurisdiction of future taxable income. Deferred tax assets and liabilities are recorded and the need for valuation allowances is evaluated to reduce the deferred tax assets to amounts expected to be realized. As of December 31, 2023 and 2022, we maintained a full valuation allowance on Israel and U.S. net deferred tax assets as we believe, after weighing both the positive and negative evidence, that it is more likely than not that these deferred tax assets will not be realized. The Internal Revenue Code of 1986, as amended, imposes restrictions on the utilization of NOLs in the event of an “ownership change” of a corporation. Accordingly, a company’s ability to use NOLs may be limited as prescribed under Internal Revenue Code Section 382, or IRC Section 382. Events which may cause limitations in the amount of the NOLs that we may use in any one year include, but are not limited to, a cumulative ownership change of more than 50% over a three-year period. Utilization of the U.S. federal and state NOLs may be subject to substantial annual limitation due to the ownership change limitations provided by the IRC Section 382 and similar state provisions. We have completed our evaluation of NOL utilization limitations under Internal Revenue Code, as amended, or the Code, Section 382, change of ownership rules, and have found that the NOLs would not be limited as to the amount that could be used in the current tax year. We have identified unrecognized tax benefits or uncertain tax positions. There has been a liability on uncertain tax positions recorded on our audited consolidated financial statements as of December 31, 2023 and 2022. We do not expect that our assessment regarding unrecognized tax benefits and uncertain tax positions will materially change over the following 12 months. A reconciliation of the beginning and ending balance of total unrecognized tax position is as follows: Unrecognized Tax Benefits (in thousands) Balance – January 1, 2021 234 Additions based on tax positions related to current year 3,885 Reductions for tax positions of prior years — Balance – December 31, 2021 4,119 Additions based on tax positions related to current year 7,187 Reductions for tax positions of prior years (54) Balance – December 31, 2022 $ 11,252 Additions based on tax positions related to current year 5,273 Reductions for tax positions of prior years (13) Balance – December 31, 2023 $ 16,512 As of December 31, 2023 and 2022, the total amount of gross unrecognized tax benefits was $16.5 million and $11.3 million, respectively, which, if recognized, would affect our effective tax rate. We have elected to include interest and penalties as a component of tax expense. As of December 31, 2023 and 2022, we have accumulated $1.0 million and $320 thousand, respectively, in both interest and penalties associated with uncertain tax positions. We do not expect unrecognized tax benefits to change significantly within the next twelve months. We are not currently under audit for income taxes. As of December 31, 2023, tax years beginning with the year ended December 31, 2019 remain subject to examination by the Israel tax authorities and tax years beginning with the year ended December 31, 2020 remain subject to examination by the Internal Revenue Service and certain U.S. state jurisdictions.

Net Profit (Loss) Per Share Att

Net Profit (Loss) Per Share Attributable to Ordinary Shareholders	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Net Profit (Loss) Per Share Attributable to Ordinary Shareholders	12. Net Profit (Loss) Per Share Attributable to Ordinary Shareholders The following table sets forth the computation of basic and diluted net profit (loss) per share attributable to ordinary shareholders for the periods presented: Year Ended December 31, 2023 2022 2021 Class A Class B Class A Class B Class A Class B (in thousands, except share and per share data) Numerator: Net profit (loss) attributable to ordinary shareholders, basic and diluted $ (38,407) $ (20,628) $ (57,734) $ (46,971) $ (90,953) $ (88,477) Denominator: Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, basic and diluted 115,005,250 61,768,148 92,450,867 75,216,507 38,757,558 37,702,067 Net profit (loss) per share attributable to ordinary shareholders, basic and diluted $ (0.33) $ (0.33) $ (0.62) $ (0.62) $ (2.35) $ (2.35) Basic and diluted net profit (loss) per share attributable to ordinary shareholders are the same for each class of ordinary shares as they are entitled to the same liquidation and dividend rights. The weighted-average potential ordinary shares that were excluded from the computation of diluted net profit (loss) per share attributable to ordinary shareholders for the periods presented because including them would have been anti-dilutive, or whose issuance is contingent upon the satisfaction of certain market conditions, are as follows: Year Ended December 31, 2023 2022 2021 Class A Class B Class A Class B Class A Class B Convertible preferred shares — — — — 17,817,201 35,634,404 Warrants to purchase ordinary shares (1) 725,334 753,565 873,370 850,650 1,488,819 354,243 Outstanding share options 11,654,082 — 16,067,720 — 12,239,441 — Unvested RSUs 23,375,114 — 16,176,275 2,131,015 1,562,388 1,965,604 Total 35,754,530 753,565 33,117,365 2,981,665 33,107,849 37,954,251 _________________ (1)

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2023
Retirement Benefits [Abstract]
Employee Benefit Plans	13. Employee Benefit Plans We have a defined-contribution plan in the United States intended to qualify under Section 401 of the Internal Revenue Code, or the 401(k) Plan. The 401(k) Plan covers substantially all employees who meet minimum age and service requirements and allows participants to defer a portion of their annual compensation on a pre-tax basis. We offer a safe harbor matching contribution in an amount equal to 100% of participating employee contributions to the plan up to 4% of the employee’s eligible compensation. During the years ended December 31, 2023, 2022, and 2021, we recorded $1.5 million, $1.1 million, and $0.8 million, respectively, of expenses related to the 401(k) plan. Israeli Severance Pay Pursuant to Israel’s Severance Pay Law, Israeli employees are entitled to severance pay equal to one month’s salary for each year of employment, or a portion thereof. We have elected to include our employees in Israel under Section 14 of the Severance Pay Law, under which these employees are entitled only to monthly deposits made in their name with insurance companies, at a rate of 8.33% of their monthly salary. These payments release us from any future obligation under the Israeli Severance Pay Law to make severance payments in respect of those employees; therefore, any liability for severance pay due to these employees, and the deposits under Section 14 are not recorded as an asset in the consolidated balance sheets. During the years ended December 31, 2023, 2022, and 2021, we recorded $4.2 million, $4.5 million, and $3.8 million, respectively, in severance expenses related to these employees.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	14. Subsequent Events In February 2024, the Company announced that it has undertaken certain actions to reduce operating expenses by initiating a reduction in force that impacted approximately 6% of the Company’s workforce. The majority of the associated costs, which are primarily related to severance and employee benefits, will be incurred in the first quarter of 2024 and are expected to be approximately $2.0 million.

SEC Schedule, Article 12-09, Va

SEC Schedule, Article 12-09, Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	Valuation and Qualifying Accounts Description Balance at beginning of period Increase (1) Decrease (2) Balance at end of period Year Ended December 31, 2023 Guarantee obligations $ 12,361 $ 135,942 $ (135,584) $ 12,719 Provision for chargebacks, net $ 11,980 $ 121,762 $ (121,650) $ 12,092 Year Ended December 31, 2022 Guarantee obligations $ 12,112 $ 106,587 $ (106,338) $ 12,361 Provision for chargebacks, net $ 12,020 $ 103,196 $ (103,236) $ 11,980 Year Ended December 31, 2021 Guarantee obligations $ 12,445 $ 96,383 $ (96,716) $ 12,112 Provision for chargebacks, net $ 10,582 $ 85,451 $ (84,013) $ 12,020 (1) Increases in Guarantee Obligations represent the portion of amounts billed in the period that is allocated to the indemnification guarantee. Increases in Provision for chargebacks, net represent the net chargeback expense recognized in the consolidated statements of operations during the period. (2) Decreases in Guarantee Obligations represent the amount released to revenue in the consolidated statements of operations during the period. Decreases in the Provision for chargebacks, net represent the amount of chargeback expenses paid during the period.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
Immaterial Prior Period Error Corrections	Immaterial Prior Period Error Correction During the year ended December 31, 2023, we identified an immaterial error relating to the period over which certain sales commissions were amortized. We assessed the materiality of the error on the financial statements for prior years individually and in the aggregate, and concluded that it was not material to any previously issued consolidated financial statements. We corrected the error by revising the consolidated financial statements appearing herein. The impact of the errors on the Company’s consolidated balance sheet as of January 1, 2021 was an overstatement of deferred contract acquisition costs of $0.7 million and an understatement of accumulated deficit of $0.7 million. There was no impact of the error on the consolidated statements of cash flows for the periods presented.
Treasury Shares	Treasury Shares
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Actual results could differ materially from these estimates. On an ongoing basis, we evaluate our estimates, including those related to the estimated period of benefit on deferred contract costs, the capitalization of certain costs to fulfill a contract, the allowance for credit losses, the fair value of financial assets and liabilities including the fair value of derivatives and investments, the useful lives of property and equipment, capitalization and estimated useful life of internal-use software, share-based compensation including the determination of the fair value of our ordinary shares (prior to IPO), the fair value of indemnification guarantees and the associated systematic and rational amortization method, provisions for chargebacks, the fair value of convertible preferred share warrant liabilities and convertible preferred share tranche rights (prior to IPO), incremental borrowing rate (“IBR”) used for operating lease right-of-use (“ROU”) assets and operating lease liabilities, and the valuation of deferred tax assets and uncertain tax positions. We base our estimates on assumptions, both historical and forward-looking, trends, and various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.
Foreign Currency	Foreign Currency The U.S. dollar is our functional currency and the functional currency of a majority of our subsidiaries. For the subsidiaries where the U.S. dollar is the functional currency, monetary assets and liabilities denominated in currencies other than the U.S. dollar are remeasured into U.S. dollars at exchange rates in effect at the end of each period. Foreign currency transaction gains and losses from these remeasurements are recognized in other income (expense), net, within the consolidated statements of operations. Foreign currency transactions resulted in net gains of $1.4 million, $2.5 million, and $0.2 million for the years ended December 31, 2023, 2022, and 2021, respectively. For subsidiaries where the functional currency is not the U.S. dollar, we use the period-end exchange rates to translate assets and liabilities, the average monthly exchange rates to translate revenue and expenses, and historical exchange rates to translate shareholders’ equity, into U.S. dollars. We record translation gains and losses in accumulated other comprehensive profit (loss) as a component of shareholders’ equity in the consolidated balance sheets.
Concentration of Risks	Concentration of Risks Our financial instruments that are exposed to concentrations of credit risk primarily consist of cash and cash equivalents, restricted cash, short-term deposits, short-term investments, accounts receivable and derivative financial instruments. We maintain our cash, cash equivalents, restricted cash, short-term deposits, and short-term investments with high-quality financial institutions mainly in the United States and Israel, the composition of which are regularly monitored by us. We have not experienced any material losses in such accounts. Our derivatives expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the agreement. We seek to mitigate such risk by limiting our counterparties to major financial institutions and by spreading the risk across a number of major financial institutions. In addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored on an ongoing basis. Our customers are online merchants. For accounts receivable, we are exposed to credit risk in the event of nonpayment by online merchants to the extent the amounts are recorded in the consolidated balance sheets. We extend different levels of credit to online merchants and maintain reserves for potential credit losses based upon the expected collectability of accounts receivable. We manage credit risk related to our merchants by performing periodic evaluations of credit worthiness and consumer indebtedness and applying other credit risk monitoring procedures. The following table summarize our merchants that represented 10% or more of Accounts receivable and Revenue: Accounts Receivable Revenue As of December 31, Year Ended December 31, 2023 2022 2023 2022 2021 Customer A 17 % 22 % 11 % 13 % 16 % Customer B 11 % * * * * ________________ * Represents less than 10%
Cash, Cash Equivalents, and Restricted Cash	Cash, Cash Equivalents, and Restricted Cash Cash and cash equivalents consist of cash in banks, bank deposits, and money market funds. We consider all highly liquid investments, with an original maturity of three months or less at the date of purchase, to be cash equivalents. Our restricted cash primarily consisted of cash deposits to back letters of credit related to certain operating leases.
Short-Term Deposits	Short-Term Deposits Short-term deposits consist of bank deposits with original maturities between 4 and 12 months and that mature within 12 months of the balance sheet date. Short-term deposits are reported at cost.
Short-term Investments	Short-Term Investments Short-term investments consist of marketable debt securities that we have classified and accounted for as available-for-sale. We determine the appropriate classification of our investments in marketable debt securities at the time of purchase and reevaluate such designation at each balance sheet date. After consideration of our risk versus reward objectives, as well as our liquidity requirements, we may sell these debt securities prior to their effective maturities. As a result, we classify our investments, including those with maturities beyond 12 months, as current assets in the Consolidated Balance Sheets. We carry these securities at fair value, and report the unrealized gains and losses, net of taxes, as a component of shareholders’ equity, except for changes in allowance for expected credit losses, which is recorded in other income (expense), net, within the consolidated statements of operations. We periodically evaluate our available-for-sale debt securities for impairment. If the amortized cost of an individual security exceeds its fair value, we consider our intent to sell the security or whether it is more likely than not that we will be required to sell the security before recovery of its amortized basis. If either of these criteria are met, we write down the security to its fair value and record the impairment charge in other income (expense), net within the consolidated statements of operations. If neither of these criteria are met, we determine whether credit loss exists. Credit loss is estimated by considering changes to the rating of the security by a rating agency, any adverse conditions specifically related to the security, as well as other factors.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. We measure financial assets and liabilities at fair value for each reporting period using a fair value hierarchy which requires us to maximize the use of observable inputs and minimize the use of unobservable inputs. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value: Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 – Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Financial instruments consist of cash and cash equivalents, restricted cash, short-term deposits, short-term investments, accounts receivables, derivative financial instruments, accounts payables, accrued liabilities, indemnification guarantees. Cash and cash equivalents, short-term deposits, restricted cash, accounts receivable, accounts payable, and accrued liabilities are stated at their carrying value, which approximates fair value due to the short time to the expected receipt or payment date. Short-term investments and derivative financial instruments are stated at fair value on a recurring basis as disclosed in Note 4 below. We record indemnification guarantees that we issue upon approving a transaction at fair value when issued using the income approach. To measure this guarantee, we consider the premium that would have been received for the same guarantee if it were issued in a stand-alone transaction. The fair value of these indemnification guarantees is determined based on historical chargeback claims, a risk premium fee that would be required for a third party to assume this liability, and an appropriate discount rate due to the time period between issuance of the guarantee and settlement or expiration. Historical chargeback guarantee claims are not readily observable in the marketplace and are generally classified as Level 3 inputs. Indemnification guarantees are recorded at fair value when issued and not remeasured to fair value each period. Refer to Note 8 below for more information regarding indemnification guarantees. Because of the inherent uncertainty of valuation, the estimated fair value of our financial instruments, in particular our indemnification guarantees, may differ significantly from the values that would have been used had a ready market for the financial instruments existed, and the differences could be material to our consolidated financial statements. Refer to Item 5. “ Operating and Financial Review and Prospects — Critical Accounting Policies and Estimates .”
Accounts Receivable, Net	Accounts Receivable, Net Accounts receivable are recorded at the invoiced amount, net of an allowance for credit losses. The allowance for credit losses is based on our assessment of the collectability of accounts. We regularly review the adequacy of the allowance for credit losses based on a combination of factors, including an assessment of the current merchant’s credit worthiness, the age of the balance, the nature and size of the merchant, the financial condition of the merchant, and the amount of any receivables in dispute. Accounts
Derivative Financial Instruments	Derivative Financial Instruments We enter into derivative instruments to manage risks relating to our ongoing business operations. We enter into foreign currency forward and option contracts with financial institutions to protect against foreign exchange risks attributable to our exposure to changes in the exchange rates of (a) the New Israeli Shekel (“NIS”) against the U.S. dollar and (b) the Euro against the U.S. dollar. Our primary objective in entering into these contracts is to reduce the volatility of forecasted earnings and cash flows associated with changes in foreign currency exchange rates. We do not use derivative instruments for trading or speculative purposes. We account for our derivative instruments as either assets or liabilities and carry them at fair value. The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. Derivative instruments are recorded as either prepaid expenses and other current assets or accrued expenses and other current liabilities in the consolidated balance sheets. We record changes in the fair value of derivative instruments that are designated as hedging instruments in accumulated other comprehensive profit (loss) in the consolidated balance sheets, until the forecasted transaction occurs upon which we reclassify the related gain or loss on the derivative to the same financial statement line item in the consolidated statements of operations to which the derivative relates. Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge monetary assets or liabilities denominated in currencies other than the functional currency of a subsidiary. Changes in the fair value on these contracts, as well as the related costs, are recognized in Other income (expense), net, along with the foreign currency gains and losses on the related monetary assets and liabilities. Refer to Note 5 for additional information.
Property and Equipment, Net	Property and Equipment, Net Property and equipment are stated at cost net of accumulated depreciation and amortization. Depreciation and amortization are calculated using the straight-line method over the estimated useful lives of the respective assets. Expenditures for maintenance and repairs are expensed as incurred. The estimated useful lives of our property and equipment are as follows: Computer equipment 3 years Furniture and office equipment 7 years Leasehold improvements Shorter of remaining lease term or estimated useful life
Capitalized Software Costs and Cloud Computing Arrangement Implementation Costs	Capitalized Software Costs Cloud Computing Arrangement Implementation Costs We capitalize certain implementation costs incurred in a cloud computing arrangement during the application development stage pursuant to Accounting Standards Codification, or ASC, 350-40, Internal Use Software.
Leases	Leases Our lease accounting policy under ASC Topic 840, “ Leases ” until January 1, 2022, prior to the adoption of the new lease guidance was as follows: Leases are reviewed and classified as either capital or operating leases at their inception. In certain lease agreements, we may receive renewal or expansion options, rent holidays, and other incentives. For operating leases, we recognize lease costs on a straight-line basis once we take control of the space, without regard to deferred payment terms such as rent holidays that defer the commencement date of required payments. Additionally, incentives received are treated as a reduction of costs over the term of the agreement. On January 1, 2022, we adopted the new lease guidance for our operating lease agreements. Refer to Note 7 below for additional information. Our lease accounting policy under ASC Topic 842, “ ASC 842 ” from January 1, 2022, following the adoption of the new lease guidance is as follows: We determine if an arrangement meets the definition of a lease at the inception of the lease, and leases are classified at commencement as either operating or finance leases. We do not have any finance leases. Operating lease ROU assets represent the right to use an underlying asset for the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease agreement. Operating lease ROU assets are measured based on the discounted present value of the remaining lease payments, initial direct costs incurred and prepaid lease payments, excluding lease incentives received prior to lease commencement. Operating lease liabilities are measured based on the discounted present value of the remaining lease payments. The discounted present value of remaining lease payments is computed using our IBR based on the information available at the commencement date of the lease as our leases generally do not provide an implicit rate. Our IBR was estimated to approximate the interest rate for collateralized borrowing with similar terms and payments and in economic environments where the leased asset was located. The lease term may include options to extend or terminate the lease when it is reasonably certain that we would exercise that option. We made an accounting policy election for lease agreements with a term of 12 months or less and do not recognize operating lease ROU assets and operating lease liabilities in respect of those agreements. Payments under our lease agreements are primarily fixed; however, certain lease agreements contain variable payments, which are expensed as incurred and not included in the operating lease ROU assets and operating lease liabilities. Variable lease payments are mainly comprised of common area maintenance, utilities, real estate taxes, and payments affected by changes in indexes. We elected the practical expedient to not separate lease and non-lease components for our leases.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets We evaluate the recoverability of long-lived assets, including property and equipment, for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be fully recoverable. Such events and changes may include significant changes in performance relative to expected operating results, significant changes in asset use, significant negative industry or economic trends, and changes in our business strategy. Recoverability of these assets is measured by comparing the carrying amounts with the future undiscounted cash flows that the assets are expected to generate. If such review indicates that the carrying amount of long-lived assets is not recoverable, the carrying amount of such assets is reduced to fair value. We determined that there were no material events or changes in circumstances that indicated that our long-lived assets were impaired during the periods presented.
Indemnifications Guarantees	Indemnification Guarantees We provide contractual assurances around the accuracy of our approvals so that our merchants can confidently automate a transaction’s execution. Our contracts obligate us to stand ready to indemnify our merchants for any costs incurred from a chargeback due to fraud (i.e., the “guarantee obligation”). Accordingly, we account for the guarantee obligation as an indemnification under the general provisions of ASC 460, Guarantees , or ASC 460, and recognize a liability at fair value upon approving a transaction at an amount that represents what we would need to pay a third party to relieve ourselves from this obligation. This liability is presented as Guarantee obligations on the consolidated balance sheets and will be released to revenue in the consolidated statements of operations. We are relieved from our guarantee obligation at the earlier of (a) paying a chargeback or (b) expiration of the guarantee which is generally six months from the date of the transaction. We recognize the guarantee obligation as revenue through a systematic and rational amortization method over a six-month period that is representative of our historical pattern of being released from risk under the guarantee obligation. While no individual transaction is probable of a chargeback occurring, when we analyze a portfolio of transactions, if we believe a future chargeback is probable and reasonably estimated, we accrue a liability and an associated expense through cost of revenue in accordance with ASC 450, Contingencies , or ASC 450 . Inputs and assumptions used by management to calculate this provision are based on the transactions approved and the features of those transactions as well as historical information about chargebacks. It is possible that the estimate may change in the near term, and the effect of the change could be material. These liabilities are recorded within Provision for chargebacks, net on the consolidated balance sheets and will be reduced by credits issued or cash paid to merchants. Refer to Note 8 below or Item 5. “ Operating and Financial Review and Prospects — Critical Accounting Policies and Estimates” for additional information.
Ordinary Share Warrants	Ordinary Share Warrants Prior to IPO, warrants to purchase our Series B/C and E-1 convertible preferred shares were recorded as a liability at fair value on our consolidated balance sheets as the underlying convertible preferred shares were contingently redeemable, upon a deemed liquidation event that is outside of our control, and therefore could have obligated us to transfer assets. The Series B/C convertible preferred share warrants were remeasured to fair value at the end of each reporting period with changes in fair value recognized as a gain or loss within other income (expense), net in the consolidated statements of operations until the earlier of the exercise of the warrants, the expiration of the warrants, or upon the completion of a qualified IPO. Upon IPO, the Series B/C convertible preferred share warrants were converted to warrants to purchase ordinary shares, and the then outstanding liability was reclassified to additional paid-in capital in the consolidated balance sheets. The warrants to purchase ordinary shares may be exercised any time prior to, and shall expire upon, the earlier of (a) April 29, 2025 or (b) immediately prior to the consummation of certain deemed liquidation events. In November 2023, the outstanding warrants to purchase ordinary shares were exercised. Refer to Note 9. The Series E-1 convertible preferred share warrants were remeasured to fair value at the end of each reporting period with changes in fair value recognized as a gain or loss within other income (expense), net in the consolidated statements of operations until the earlier of the exercise of the warrants, the expiration of the warrants, or the completion of a deemed liquidation event, including a qualified IPO. Upon IPO, the Series E-1 convertible preferred share warrants were automatically exercised. In conjunction with a SaaS Agreement entered into in 2021, we issued a warrant to a customer to purchase ordinary shares. The warrant vests annually, in equal amounts, over a five-year period commencing on the effective date of the SaaS Agreement. The warrant is accounted for as consideration payable to a customer under ASC 606 and will reduce revenue as we recognize revenue under the SaaS Agreement over a period of five years. As of December 31, 2023, the warrant is outstanding.
Revenue Recognition	Revenue Recognition We primarily generate revenue by granting merchants access to our eCommerce risk intelligence platform and reviewing and approving eCommerce transactions for legitimacy. Revenue is also generated from the issuance of indemnification guarantees as noted above within “Indemnification Guarantees”. For the majority of our revenue, merchants pay us a percentage of every dollar of the gross merchandise volume, or GMV, that we approve and guarantee on their behalf. Our fee, as determined by our risk-based pricing model, in these situations is a percentage of the GMV of our merchants’ orders that we approve, prior to taxes or other charges. These arrangements do not provide merchants with the right to take possession of our software platform. Rather, merchants are granted continuous access to our software platform under a hosting arrangement over the contractual period. As noted above within “Indemnification Guarantees”, our contracts with our merchants obligate us to review eCommerce transactions for legitimacy as well as to stand ready to indemnify merchants for costs incurred associated with an approved transaction in the event of a chargeback due to fraud. Our fee is allocated between the consideration owed to us for our fraud review service performance obligation accounted for under ASC 606 and the consideration owed to us for issuing indemnification guarantees that are accounted for under ASC 460 and are recorded at fair value. Consideration allocated to fraud review is recognized as revenue over the contract period in the month that the transactions are approved while consideration allocated to the indemnification guarantee is recognized as we are released from risk under the guarantee, generally over a six-month period from the date of the transaction. We present revenue net of cancellations and adjustments for minimum service level agreements. In accordance with ASC 606, revenue is recognized when a customer obtains control of promised products. The amount of revenue recognized reflects the consideration that we expect to receive in exchange for these products. To achieve the core principle of this standard, we applied the following five steps: 1. Identification of the contract, or contracts, with the merchant We determine that we have a contract with a merchant when the contract is approved, each party’s rights and obligations regarding the products to be transferred can be identified, the payment terms for the products can be identified, we have determined the merchant has the ability and intent to pay, and the contract has commercial substance. At contract inception, we evaluate whether two or more contracts should be combined and accounted for as a single contract and whether the combined or single contract includes more than one performance obligation. Contracts with our merchants are typically for a period of one year. 2. Identification of the performance obligations in the contract Performance obligations promised in a contract are identified based on the products that will be transferred to the merchant that are both capable of being distinct, whereby the merchant can benefit from the products either on their own or together with other resources that are readily available from third parties or from us, and are distinct in the context of the contract, whereby the transfer of the products is separately identifiable from other promises in the contract. For SaaS arrangements, we provide access to our cloud-hosted software platform and reviewing and approving eCommerce transaction for legitimacy, without providing the merchant the right to take possession of our software, which we consider to be a single performance obligation. Revenue generated from the issuance of indemnification guarantees is accounted for under ASC 460. Refer to “Indemnification Guarantees” above and Note 8 below for additional information. 3. Determination of the transaction price As our contracts include an unknown quantity of approved transactions at a fixed contractual rate per approved transaction value executed on a monthly basis, the contract price is deemed variable. We allocate the variable consideration to the month in which we have the contractual right to bill under the contract as this represents the amount of consideration to which we expect to be entitled for the transfer of products during that month. Certain of our contracts include additional forms of variable consideration such as service level commitments relating to uptime availability and minimum approval rates as well as provisions that provide for reimbursements should our merchant’s consumer cancel an approved order. If we fail to meet these commitments, merchants are generally permitted to receive a refund in the form of a credit on their invoice. Under certain arrangements, when the merchant’s consumer cancels an order that we have approved, we provide a refund of some or all of the fees owed by our merchant to us generally in the form of a credit on our merchant’s invoice. The transaction price is reduced to reflect our estimate of the amount of consideration to which we are entitled based on the terms of the contract. Payment terms and conditions vary by contract type, although terms generally include a requirement to pay within 30 days. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined that our contracts do not include a significant financing component. The primary purpose of our invoicing terms is to provide our merchants with simplified and predictable ways of purchasing our products; not to receive financing from our merchants or to provide merchants with financing. We applied the practical expedient in ASC 606 and did not evaluate payment terms of one year or less for the existence of a significant financing component. Revenue is recognized net of any taxes collected from merchants (e.g., sales tax and other indirect taxes), which are subsequently remitted to governmental entities. We generally do not offer a right of refund in our contracts. 4. Allocation of the transaction price to the performance obligations in the contract Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on each performance obligation’s relative standalone selling price. Access to our cloud-hosted software is considered one performance obligation in the context of the contract and accordingly the transaction price is allocated to this single performance obligation. 5. Recognition of the revenue when, or as, a performance obligation is satisfied Revenue is recognized at the time the related performance obligation is satisfied by transferring control of the promised service to the customer. Revenue is recognized in an amount that reflects the consideration that we expect to receive in exchange for those products. For SaaS arrangements, we have determined that these arrangements meet the variable consideration allocation exception and revenue is recognized over the contract period in the month that the transactions are approved. Contract Balances Contract assets consist of unbilled accounts receivable. The terms of our agreements are monthly, annual, or multi-year, and we typically invoice our merchants based on monthly usage. In some arrangements, a right to consideration for our performance under the merchant contract may occur before invoicing to the merchant, resulting in an unbilled accounts receivable. The amount of unbilled accounts receivable included within accounts receivable, net on the consolidated balance sheets was immaterial for the periods presented. Cost to Obtain a Contract We capitalize sales commissions and associated payroll taxes paid that are incremental to the acquisition of merchant contracts. These costs are recorded as Deferred contract acquisition costs on the consolidated balance sheets. We determine whether costs should be deferred based on our sales compensation plans and if the commissions are incremental and would not have occurred absent the merchant contract. Determining whether such costs are incremental to obtaining the online merchant contract requires a certain degree of judgment. Sales commissions for initial contracts are amortized on a straight-line basis over an estimated period of benefit of four years. We determine the period of benefit for sales commissions by taking into consideration the estimated customer life, technological life of our software, and other factors. These factors involved in the determination of the period of benefit include inherent uncertainties and the application of significant judgment. Sales commissions for renewal contracts are not commensurate with sales commissions for initial contracts and are deferred and then amortized on a straight-line basis over the contractual term. Sales commissions expenses are included in sales and marketing expense in the consolidated statements of operations. We periodically review these deferred contract acquisition costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit. There were no impairment losses recorded during the periods presented. Cost to Fulfill a Contract We capitalize payroll related costs of certain integration services required in order to be able to fulfill the obligation to provide our products to our merchants. Integration services are promises that are not capable of being distinct. These costs are capitalized to the extent they are directly related to a contract, are recoverable, and generate or enhance resources that will be used in delivering our SaaS products. These costs are recorded as deferred contract fulfillment costs in other assets, noncurrent on the consolidated balance sheets. Capitalized costs to fulfill a contract are amortized on a straight-line basis over the expected period of benefit of four years and are included in cost of revenue in the consolidated statements of operations. We determine the period of benefit by taking into consideration the estimated customer life, technological life of our software, and other factors. These factors involved in the determination of period of benefit involve inherent uncertainties and the application of significant judgment. We periodically review these deferred contract fulfillment costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit. There were no impairment losses recorded during the periods presented.
Cost of Revenue	Cost of Revenue Cost of revenue primarily consist of chargeback expenses, net of chargebacks won, and other expenses related to providing our products to our merchants. These other expenses include compensation and benefits related costs, including share-based compensation expense associated with teams integral in providing our service, hosting fees and software costs, payment processing fees, amortization of capitalized software development costs and deferred contract fulfillment costs, depreciation expense, and allocated overhead.
Research and Development	Research and Development Research and development costs primarily consist of compensation and benefits related costs, including share-based compensation expense associated with research and development teams that are responsible for the design, development, and testing of our ecommerce risk intelligence platform infrastructure including expenses associated with adding new features, increasing the functionality, and enhancing the usability of our platform. Research and development costs also consist of third-party software hosting fees used by our research and development teams, depreciation expense, and allocated overhead. Research and development costs are expensed as incurred.
Sales and Marketing	Sales and Marketing Sales and marketing costs primarily consist of compensation and benefits related costs, including share-based compensation expense directly associated with our sales and marketing teams. Sales and marketing costs also consists of costs associated with conferences, events, digital marketing and advertising programs, deferred contract acquisition costs, depreciation expense, and allocated overhead. Sales and marketing costs are expensed as incurred. Digital marketing programs include advertising, promotional events, and brand-building activities. Advertising costs are expensed as incurred and were $4.9 million, $6.0 million, and $5.2 million for the years ended December 31, 2023, 2022, and 2021, respectively.
General and Administrative	General and Administrative General and administrative costs primarily consist of compensation and benefits related costs, including share-based compensation expense associated with our finance, legal, human resources, information technology and administrative functions. General and administrative costs also consist of third-party professional service fees for external legal, accounting and other consulting services, depreciation expense, and allocated overhead. General and administrative costs are expensed as incurred.
Share-Based Compensation	Share-Based Compensation Share-based compensation expense related to share-based awards is recognized based on the fair value of the awards granted. The fair value of each share option award is estimated on the grant date using the Black-Scholes option-pricing model. The Black-Scholes option-pricing model requires the input of highly subjective assumptions, including the fair value of the underlying ordinary shares, the expected term of the share option, the expected volatility of the price of our ordinary shares, risk-free interest rates, and the expected dividend yield of ordinary shares. The assumptions used to determine the fair value of the option awards represent management’s best estimates. These estimates involve inherent uncertainties and the application of management’s judgment. The related share-based compensation expense is recognized on a straight-line basis over the requisite service period of the awards, including awards with graded vesting and no additional conditions for vesting other than service conditions. Forfeitures are accounted for as they occur. We have granted to employees, RSUs, that vest either upon the (a) satisfaction of service-based vesting conditions only and (b) satisfaction of both service-based and performance-based vesting conditions. The fair value of each RSU award is based on the fair value of the underlying ordinary shares as of the grant date. We have also granted to our Chief Executive Officer (“CEO”), RSUs, that vest upon the satisfaction of service-based, performance-based, and market-based vesting conditions. A Monte-Carlo simulation model was used to determine the grant date fair value by simulating a range of scenarios with each outcome resulting in a determined value. The grant date fair value of this award is the average of the values determined by each simulation. The simulation was also used to derive the requisite service period. For RSU awards with both service-based and performance-based vesting conditions, the service-based vesting condition has varying terms, but is generally satisfied over four
Income Taxes	Income Taxes We are subject to income taxes in Israel, the United States, and other jurisdictions. These other jurisdictions may have different statutory rates than in Israel. Income taxes are accounted for in accordance with ASC 740, Income Taxes . Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statements carrying amounts of existing assets and liabilities and their respective tax basis as well as operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Valuation allowances are provided when necessary to reduce deferred tax assets to an amount that is more likely than not to be realized. We recognize income tax benefits from uncertain tax positions only if we believe that it is more likely than not that the tax position will be sustained upon examination by the taxing authorities based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such uncertain tax positions are then measured based on the largest benefit that is more likely than not to be realized upon the ultimate settlement.
Net Profit (Loss) Per Share Attributable to Ordinary Shareholders	Net Profit (Loss) Per Share Attributable to Ordinary Shareholders We compute net profit (loss) per share using the two-class method required for participating securities. The two-class method requires income available to ordinary shareholders for the period to be allocated between ordinary shares and participating securities based upon their respective rights to receive dividends as if all income for the period had been distributed. Under the two-class method, we allocate earnings proportionately to Class A and B ordinary shares outstanding for the period. Prior to IPO, we considered our convertible preferred shares to be participating securities as the holders of the convertible preferred shares would be entitled to dividends in preference to ordinary shareholders. These participating securities do not contractually require the holders of such shares to participate in our losses. As such, net loss for the periods presented was not allocated to our participating securities. Our basic net profit (loss) per share is calculated by dividing net profit (loss) attributable to ordinary shareholders by the weighted-average number of ordinary shares outstanding for the period, without consideration of potentially dilutive securities. The diluted net profit (loss) per share is calculated by giving effect to all potentially dilutive securities outstanding for the period using the treasury stock method or the if-converted method based on the nature of such securities. Diluted net profit (loss) per share is the same as basic net profit (loss) per share in periods when the effects of potentially dilutive shares of ordinary shares are anti-dilutive.
Segment Information	Segment Information We operate our business in one operating segment and therefore have one reportable segment. Operating segments are defined as components of an entity that engage in business activities for which discrete financial information is available and regularly reviewed by the chief operating decision maker, who is our CEO, in deciding how to allocate resources and assess performance. Our chief operating decision maker allocates resources and assesses performance based upon discrete financial information at the consolidated level. Revenue by geographical region can be found in the revenue recognition disclosures in Note 3 below. Property and equipment, net of depreciation and amortization, by geographic region can be found in Note 6 below. Operating lease ROU assets by geographic region can be found in Note 7 below.
Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements As an emerging growth company, or EGC, the Jumpstart Our Business Startups Act, or the JOBS Act, allows us to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. The JOBS Act does not preclude an EGC from early adopting new or revised accounting standards. We have elected to use extended transition periods permissible under the JOBS Act while also early adopting certain accounting pronouncements. The adoption dates discussed below reflect these elections. In June 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, including subsequent amendments thereafter, which established ASC 326. ASC 326 replaces the existing incurred loss impairment model with a current expected credit loss model that requires more timely recognition of estimated expected credit losses over the life of certain financial instruments. Our accounts receivable and available-for-sale debt securities are in the scope of ASC 326. We adopted ASC 326 as of January 1, 2023. The adoption of ASC 326 did not have a material impact on our financial condition and results of operations within our consolidated financial statements. Recently Issued Accounting Pronouncements In November 2023, the Financial Accounting Standards Board (FASB) issued ASU No. 2023-07, Reportable Segments (Topic 280): Improvements to Reportable Segment Disclosures , which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses, including public entities with a single operating or reportable segment. The updated standard will be effective for annual periods beginning in fiscal 2024 and interim periods beginning in the first quarter of fiscal 2025. Early adoption is permitted. We are currently evaluating the impact of this standard on our financial statement disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures , which expands disclosures in an entity’s income tax rate reconciliation table and regarding cash taxes paid both in the U.S. and foreign jurisdictions. The updated standard will be effective for annual periods beginning in fiscal 2026. We are currently evaluating the impact of this standard on our financial statement disclosures.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Schedule of Immaterial Prior Period Error Corrections	The following tables summarize the effects of the corrections on the Company’s consolidated financial statements for the years ended December 31, 2022 and 2021: Year Ended December 31, 2022 As Previously Reported Adjustment As Revised (in thousands) Deferred contract acquisition costs $ 16,364 $ (1,981) $ 14,383 Accumulated deficit (350,553) (1,981) (352,534) Sales and marketing expenses 87,722 716 88,438 Operating profit (loss) (108,632) (716) (109,348) Profit (loss) before income taxes (97,947) (716) (98,663) Net profit (loss) (103,989) (716) (104,705) Net profit (loss) per share attributable to Class A and B ordinary shareholders, basic and diluted $ 0.62 $ — $ 0.62 Year Ended December 31, 2021 As Previously Reported Adjustment As Revised (in thousands) Deferred contract acquisition costs $ 11,630 $ (1,265) $ 10,365 Accumulated deficit (246,564) (1,265) (247,829) Sales and marketing expenses 70,165 545 70,710 Operating profit (loss) (55,398) (545) (55,943) Profit (loss) before income taxes (177,327) (545) (177,872) Net profit (loss) (178,885) (545) (179,430) Net profit (loss) per share attributable to Class A and B ordinary shareholders, basic and diluted $ (2.34) $ (0.01) $ (2.35)
Schedules of Concentration of Risk, by Risk Factor	The following table summarize our merchants that represented 10% or more of Accounts receivable and Revenue: Accounts Receivable Revenue As of December 31, Year Ended December 31, 2023 2022 2023 2022 2021 Customer A 17 % 22 % 11 % 13 % 16 % Customer B 11 % * * * * ________________ * Represents less than 10%
Rollforward of Allowance for Credit Losses	The following table represents a roll-forward of the allowance for credit losses: Year Ended December 31, 2023 (in thousands) Beginning balance $ 487 Current period provision 198 Uncollectible accounts charged against the allowance (170) Recoveries of amounts previously deemed uncollectible — Ending balance $ 515
Property, Plant and Equipment	The estimated useful lives of our property and equipment are as follows: Computer equipment 3 years Furniture and office equipment 7 years Leasehold improvements Shorter of remaining lease term or estimated useful life Property and Equipment, Net Property and equipment, net consisted of the following: As of December 31, 2023 2022 (in thousands) Computer equipment $ 6,592 $ 6,912 Furniture and office equipment 2,593 2,531 Leasehold improvements 16,702 16,576 Property and equipment, gross 25,887 26,019 Less: accumulated depreciation and amortization (10,248) (7,433) Property and equipment, net $ 15,639 $ 18,586

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue from External Customers by Geographic Areas	The following table summarizes revenue by region in which our merchants’ headquarters are located: Year Ended December 31, 2023 2022 2021 Amount Percentage of Revenue Amount Percentage of Revenue Amount Percentage of Revenue (in thousands, except where indicated) United States $ 182,806 61 % $ 163,920 63 % $ 163,681 71 % Europe, the Middle East and Africa (“EMEA”)* 80,547 27 71,443 27 44,850 20 Asia-Pacific (“APAC”) 16,699 6 12,005 5 7,416 3 Americas 17,558 6 13,879 5 13,194 6 Total revenue $ 297,610 100 % $ 261,247 100 % $ 229,141 100 % _________________ * Revenue recognized from merchants whose headquarters are in Israel, which is our country of domicile, was $1.3 million, $3.3 million, and $2.4 million for the years ended December 31, 2023, 2022, and 2021, respectively.
Disaggregation of Revenue	The following table summarizes revenue based on the nature and type of service provided to our merchants: Year Ended December 31, 2023 2022 2021 Amount Percentage of Revenue Amount Percentage of Revenue Amount Percentage of Revenue (in thousands, except where indicated) Fraud review service revenue (ASC 606) $ 167,278 56 % $ 156,040 60 % $ 132,261 58 % Indemnification guarantee service revenue (ASC 460) 130,332 44 105,207 40 96,880 42 Total revenue $ 297,610 100 % $ 261,247 100 % $ 229,141 100 %
Deferred Policy Acquisition Costs	The following table represents a roll-forward of deferred contract acquisition costs: Year Ended December 31, 2023 2022 2021 (in thousands) Beginning balance $ 14,383 $ 10,365 $ 6,263 Additions to deferred contract acquisition costs 8,894 9,707 7,744 Amortization of deferred contract acquisition costs (7,715) (5,689) (3,642) Ending balance $ 15,562 $ 14,383 $ 10,365
Deferred Contract Fulfillment Costs	The following table represents a roll-forward of deferred contract fulfillment costs that are included within in other assets, noncurrent on the consolidated balance sheets: Year Ended December 31, 2023 2022 2021 (in thousands) Beginning balance $ 3,673 $ 2,930 $ 2,166 Additions to deferred contract fulfillment costs 2,635 2,189 1,789 Amortization of deferred contract fulfillment costs (1,852) (1,446) (1,025) Ending balance $ 4,456 $ 3,673 $ 2,930

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present information about our financial instruments that are measured at fair value on a recurring basis: As of December 31, 2023 Fair Value Level 1 Level 2 Level 3 (in thousands) Financial Assets: Government bonds included within short-term investments $ 28,968 $ — $ 28,968 $ — Derivative financial instruments included in prepaid expenses and other current assets 308 — 308 — Total financial assets $ 29,276 $ — $ 29,276 $ — Financial Liabilities: Derivative financial instruments included in accrued expenses and other current liabilities $ 462 $ — $ 462 $ — Total financial liabilities $ 462 $ — $ 462 $ — As of December 31, 2022 Fair Value Level 1 Level 2 Level 3 (in thousands) Financial Liabilities: Derivative financial instruments included in accrued expenses and other current liabilities $ 2,397 $ — $ 2,397 $ — Total financial liabilities $ 2,397 $ — $ 2,397 $ —
Schedule of Debt Securities	Short-term investments consisted of the following: As of December 31, 2023 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (in thousands) Government bonds $ 28,882 $ 229 $ (143) $ 28,968 Total short-term investments $ 28,882 $ 229 $ (143) $ 28,968
Schedule of Estimate of Fair Value of Investments by Contractual Maturity Dates	The following table summarizes the estimated fair value of investments in available-for-sale marketable debt securities by effective contractual maturity dates: As of December 31, 2023 Due in 1 year or less $ 28,968 Total $ 28,968

Derivative Instruments and He_2

Derivative Instruments and Hedging (Tables)	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	Our foreign currency contracts are denominated in NIS and Euro. The gross notional amounts of outstanding foreign currency contracts in U.S. dollar were as follows: As of December 31, 2023 2022 (in thousands) Derivatives Designated as Hedging Instruments: Foreign currency contracts $ 63,716 $ 63,998 Derivatives Not Designated as Hedging Instruments: Foreign currency contracts 10,314 13,814 Total derivative instruments $ 74,030 $ 77,812
Derivative Instruments, Gain (Loss)	The effect of foreign currency contracts on the Consolidated Statements of Operations during the periods presented were as follows: Derivatives Designated as Hedging Instruments Derivatives Not Designated as Hedging Instruments Year Ended December 31, Year Ended December 31, 2023 2022 2021 2023 2022 2021 (in thousands) Statement of Operations Location: Revenue $ 168 $ — $ — $ — $ — $ — Cost of revenue (146) (175) — — — — Research and development (2,659) (1,718) — — — — Sales and marketing (1,051) (732) — — — — General and administrative (1,263) (706) — — — — Other income (expense), net — — — (534) (1,659) 59 Total gain (loss) recognized in earnings $ (4,951) $ (3,331) $ — $ (534) $ (1,659) $ 59
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table represents the net unrealized gains (losses) of foreign currency contracts designated as hedging instruments, net of tax, that were recorded in accumulated other comprehensive profit (loss) during the periods presented, and their effect on other comprehensive profit (loss) for the periods presented: Net Unrealized Gains (Losses) on Derivatives Designated as Hedging Instruments (in thousands) Balance as of December 31, 2020 $ — Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss) 176 Amount of net gains (losses) reclassified from accumulated other comprehensive profit (loss) to earnings — Other comprehensive profit (loss) 176 Balance as of December 31, 2021 176 Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss) 1,448 Amount of net gains (losses) reclassified from accumulated other comprehensive profit (loss) to earnings (3,331) Other comprehensive profit (loss) (1,883) Balance as of December 31, 2022 $ (1,707) Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss) 6,585 Amount of net gains (losses) reclassified from accumulated other comprehensive profit (loss) to earnings (4,951) Other comprehensive profit (loss) 1,634 Balance as of December 31, 2023 $ (73)

Consolidated Balance Sheet Co_2

Consolidated Balance Sheet Components (Tables)	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Property, Plant and Equipment	The estimated useful lives of our property and equipment are as follows: Computer equipment 3 years Furniture and office equipment 7 years Leasehold improvements Shorter of remaining lease term or estimated useful life Property and Equipment, Net Property and equipment, net consisted of the following: As of December 31, 2023 2022 (in thousands) Computer equipment $ 6,592 $ 6,912 Furniture and office equipment 2,593 2,531 Leasehold improvements 16,702 16,576 Property and equipment, gross 25,887 26,019 Less: accumulated depreciation and amortization (10,248) (7,433) Property and equipment, net $ 15,639 $ 18,586
Schedule of Accrued Liabilities	Accrued expenses and other current liabilities consisted of the following: As of December 31, 2023 2022 (in thousands) Accrued expenses $ 4,548 $ 6,175 Customer credits 6,724 5,388 Derivative financial instruments 462 2,397 Other 1,062 1,853 Accrued expenses and other current liabilities $ 12,796 $ 15,813
Other Noncurrent Liabilities	Other liabilities, noncurrent consisted of the following: As of December 31, 2023 2022 (in thousands) Other tax liabilities $ 14,706 $ 8,734 Other liabilities, noncurrent $ 14,706 $ 8,734

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Lease, Cost	The components of operating lease cost for the years ended December 31, 2023 and 2022 were as follows: Year Ended December 31, 2023 2022 (in thousands) Operating lease cost $ 6,242 $ 6,140 Variable lease cost 1,010 1,257 Short-term lease cost 170 304 Sublease income (1,347) (786) Total operating lease cost $ 6,075 $ 6,915
Lessee, Operating Lease, Liability, Maturity	The future minimum lease payments included in the measurement of our operating lease liabilities as of December 31, 2023, were as follows: Amount Year Ending December 31, 2024 $ 5,744 2025 5,714 2026 5,759 2027 5,804 2028 5,851 Thereafter 7,183 Total undiscounted lease payments 36,055 Less: imputed interest (4,746) Present value of operating lease liabilities $ 31,309 The following table presents our operating lease ROU assets by geographic region: As of December 31, 2023 2022 (in thousands) Israel $ 18,782 $ 22,560 United States 10,960 12,598 Total operating lease right-of-use assets $ 29,742 $ 35,158

Guarantees, Commitments, and _2

Guarantees, Commitments, and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Recorded Unconditional Purchase Obligations	As of December 31, 2023, we had outstanding non-cancelable purchase obligations with a term of 12 months or longer as follows: Amount (in thousands) Year Ending December 31, 2024 $ 1,106 2025 512 2026 96 Total $ 1,714

Temporary Equity (Tables)

Temporary Equity (Tables)	12 Months Ended
	Dec. 31, 2023
Temporary Equity Disclosure [Abstract]
Schedule of Stockholders' Equity Note, Warrants or Rights	As of December 31, 2023 and 2022, the following warrants were issued and outstanding: As of December 31, 2023 Issued and Outstanding Share Warrants Weighted-Average Exercise Price Expiration Date Class A Ordinary Shares Class B Ordinary Shares Class A Ordinary Shares Class B Ordinary Shares Warrants issued to customers 499,500 — $ 0.01 $ — June 2028 Total 499,500 —

Ordinary Shares and Equity In_2

Ordinary Shares and Equity Incentive Plan (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Stock by Class	We have the following ordinary shares reserved for future issuance: As of December 31, 2023 2022 Warrants to purchase ordinary shares (1) 499,500 1,775,475 Share options and RSUs issued and outstanding under the 2013 Plan 15,981,269 20,062,824 Share options and RSUs issued and outstanding under the 2021 Plan 16,299,528 13,134,652 Remaining shares available for future issuance under the 2021 Plan 8,766,560 8,674,132 Total ordinary shares reserved 41,546,857 43,647,083 _________________ (1)
Share-based Payment Arrangement, Option, Activity	A summary of share options under our equity incentive plan and related information is as follows: Share Options Outstanding Outstanding Share Options Weighted-Average Exercise Weighted-Average Remaining Contractual Life (Years) Aggregate Intrinsic (in thousands, except share, life and per share data) Balance as of December 31, 2022 13,785,214 $ 2.17 6.1 $ 34,326 Options exercised (3,010,478) $ 1.22 Options forfeited (405,202) $ 3.72 Balance as of December 31, 2023 10,369,534 $ 2.39 5.5 $ 24,303 Exercisable as of December 31, 2023 8,849,876 $ 2.13 5.2 $ 22,904
Fair Value Measurement Inputs and Valuation Techniques	The Black-Scholes assumptions used to value the employee share options at the grant dates are as follows: Year Ended December 31, 2021 Expected term (years) 5.44 - 6.60 Expected volatility 67.26% - 68.52% Risk-free interest rate 0.99% - 1.12% Expected dividend yield 0.00%
Schedule of Unvested Restricted Stock Units Roll Forward	A summary of RSU activity, including activity under our equity incentive plan, and related information is as follows: Number of Shares Weighted-Average Unvested as of December 31, 2022 19,412,262 $ 9.06 Granted 10,904,664 $ 5.43 Vested (6,365,261) $ 7.28 Forfeited (2,040,402) $ 6.31 Unvested as of December 31, 2023 21,911,263 $ 8.02
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	Share-based compensation expense by line item in the consolidated statements of operations is summarized as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Cost of revenue $ 770 $ 621 $ 216 Research and development 13,152 10,005 4,246 Sales and marketing 19,420 18,253 10,710 General and administrative 29,068 38,588 18,186 Total share-based compensation expense $ 62,410 $ 67,467 $ 33,358

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	Profit (loss) before the provision for income taxes consisted of the following for the years ended December 31, 2023, 2022, and 2021: Year Ended December 31, 2023 2022 2021 (in thousands) Israel $ (23,269) $ (55,414) $ (154,549) International (29,968) (43,249) (23,323) Total $ (53,237) $ (98,663) $ (177,872)
Schedule of Components of Income Tax Expense (Benefit)	The provision for income taxes was as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Current: Israel $ (225) $ 4 $ 4 International 6,039 8,715 121 Total current income tax expense 5,814 8,719 125 Deferred: Israel — — — International (16) (2,677) 1,433 Total deferred income tax expense (16) (2,677) 1,433 Total provision for income taxes $ 5,798 $ 6,042 $ 1,558
Schedule of Effective Income Tax Rate Reconciliation	A reconciliation of our statutory income tax expense to our effective income tax provision is as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Israel tax benefit at statutory rate $ (12,245) $ (22,528) $ (40,784) Preferred enterprise 1,652 10,573 3,052 Foreign rate differential (785) (1,050) 912 Share-based compensation 8,158 9,717 1,753 Warrant revaluation — — 23,325 Tranche right revaluation — — 4,890 Prior year tax income/(expense) (302) (6,675) 84 Permanent differences 587 (3,351) 98 Uncertain tax position 5,772 7,233 3,784 Change in valuation allowance 2,961 12,123 4,444 Total $ 5,798 $ 6,042 $ 1,558
Schedule of Deferred Tax Assets and Liabilities	The following table presents the significant components of our deferred tax assets and liabilities: Year Ended December 31, 2023 2022 2021 (in thousands) Deferred tax assets: Research and development expenses $ 7,550 $ 7,374 $ 1,436 Net operating loss 10,333 9,059 5,212 Deferred Compensation 6,762 5,214 1,009 Operating lease liabilities 5,565 6,456 — Vacation and convalescence 746 730 799 Bad debts 84 78 93 Other 1,946 2,166 466 Gross deferred tax assets 32,986 31,077 9,015 Valuation allowance (23,783) (20,822) (8,699) Total deferred tax assets 9,203 10,255 316 Deferred tax liabilities: Operating lease right-of-use assets (5,577) (6,387) — Deferred contract acquisition costs (2,971) (3,009) (2,324) Property and equipment (109) (279) (283) Capitalized Software (541) (591) (397) Gross deferred tax liabilities (9,198) (10,266) (3,004) Net deferred tax assets/(liabilities) $ 5 $ (11) $ (2,688)
Schedule of Unrecognized Tax Benefits Roll Forward	A reconciliation of the beginning and ending balance of total unrecognized tax position is as follows: Unrecognized Tax Benefits (in thousands) Balance – January 1, 2021 234 Additions based on tax positions related to current year 3,885 Reductions for tax positions of prior years — Balance – December 31, 2021 4,119 Additions based on tax positions related to current year 7,187 Reductions for tax positions of prior years (54) Balance – December 31, 2022 $ 11,252 Additions based on tax positions related to current year 5,273 Reductions for tax positions of prior years (13) Balance – December 31, 2023 $ 16,512

Net Profit (Loss) Per Share A_2

Net Profit (Loss) Per Share Attributable to Ordinary Shareholders (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted net profit (loss) per share attributable to ordinary shareholders for the periods presented: Year Ended December 31, 2023 2022 2021 Class A Class B Class A Class B Class A Class B (in thousands, except share and per share data) Numerator: Net profit (loss) attributable to ordinary shareholders, basic and diluted $ (38,407) $ (20,628) $ (57,734) $ (46,971) $ (90,953) $ (88,477) Denominator: Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, basic and diluted 115,005,250 61,768,148 92,450,867 75,216,507 38,757,558 37,702,067 Net profit (loss) per share attributable to ordinary shareholders, basic and diluted $ (0.33) $ (0.33) $ (0.62) $ (0.62) $ (2.35) $ (2.35)
Schedule of Weighted Average Number of Shares	The weighted-average potential ordinary shares that were excluded from the computation of diluted net profit (loss) per share attributable to ordinary shareholders for the periods presented because including them would have been anti-dilutive, or whose issuance is contingent upon the satisfaction of certain market conditions, are as follows: Year Ended December 31, 2023 2022 2021 Class A Class B Class A Class B Class A Class B Convertible preferred shares — — — — 17,817,201 35,634,404 Warrants to purchase ordinary shares (1) 725,334 753,565 873,370 850,650 1,488,819 354,243 Outstanding share options 11,654,082 — 16,067,720 — 12,239,441 — Unvested RSUs 23,375,114 — 16,176,275 2,131,015 1,562,388 1,965,604 Total 35,754,530 753,565 33,117,365 2,981,665 33,107,849 37,954,251 _________________ (1)

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details)		3 Months Ended	12 Months Ended
	Jul. 28, 2021 USD ($) $ / shares shares	Sep. 30, 2023 shares	Dec. 31, 2023 USD ($) vote segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) shares	Aug. 31, 2023 USD ($)	Dec. 31, 2020 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Overstatement of deferred contract acquisition costs			$ (15,562,000)	$ (14,383,000)	$ (10,365,000)		$ (6,263,000)
Understatement of accumulated deficit			411,569,000	352,534,000	247,829,000
Sale of stock, consideration received on transaction	$ 386,600,000
Payments of stock issuance costs			0	204,000	5,302,000
Payments of other stock issuance costs	$ 5,700,000
Stock split conversion ratio	0.5
Foreign currency transaction gain (loss)			1,400,000	2,500,000	200,000
Accounts receivable, allowance for credit loss			$ 515,000	487,000
Guarantee obligations, term			six
Contract term with merchant			1 year
Capitalized contract cost, amortization period			4 years
Capitalized contract cost, impairment loss			$ 0	0	0
Chargeback expense			(25,000,000)	(20,300,000)	(14,300,000)
Advertising expense			4,900,000	6,000,000	5,200,000
Total share-based compensation expense			$ 62,410,000	67,467,000	$ 33,358,000
Number of operating segments | segment			1
Number of reportable segments | segment			1
Operating lease right-of-use assets			$ 29,742,000	35,158,000
Present value of operating lease liabilities			$ 31,309,000
Series E-1 Convertible Preferred Stock [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Issuance of convertible preferred stock (in shares) | shares		962,940			962,940
Common Class A
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Votes per common share | vote			1
Authorized amounts under repurchase program						$ 75,000,000
Common Class B
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Votes per common share | vote			10
Software Development
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized software costs			$ 3,500,000	5,000,000
Amortization of intangible assets			1,500,000	700,000	$ 400,000
Cloud Computing Arrangement Implementation Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized software costs			700,000	200,000
Amortization of intangible assets			$ 200,000	$ 200,000	$ 200,000
Software and Software Development Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property and equipment, useful life			4 years
IPO
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Sale of stock, number of shares issued in transaction (in shares) | shares	19,925,000
Sale of stock, price per share (in dollars per share) | $ / shares	$ 21
Payments of stock issuance costs	$ 26,200,000
Stock issued, conversion of convertible securities (in shares) | shares	32,291,470
Over-Allotment Option
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Sale of stock, number of shares issued in transaction (in shares) | shares	2,625,000
Restricted Stock Units (RSUs) | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Award vesting period			4 years
Restricted Stock Units (RSUs) | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Award vesting period			5 years
Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Tranche Two
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Award vesting period			6 months

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Schedule of Concentration Risks (Details) - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	17%	22%
Accounts Receivable | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	11%
Revenue Benchmark | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	11%	13%	16%

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Schedule of Immaterial Prior Period Error Corrections (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred contract acquisition costs	$ 15,562	$ 14,383	$ 10,365		$ 6,263
Accumulated deficit	(411,569)	(352,534)	(247,829)
Sales and marketing	88,441	88,438	70,710
Operating profit (loss)	(76,849)	(109,348)	(55,943)
Profit (loss) before income taxes	(53,237)	(98,663)	(177,872)
Net profit (loss)	$ (59,035)	$ (104,705)	$ (179,430)
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)		$ 0.62
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)		0.62
Common Class A
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)	$ (0.33)	(0.62)	$ (2.35)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)	(0.33)	(0.62)	(2.35)
Common Class B
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)	(0.33)	(0.62)	(2.35)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred contract acquisition costs		$ 16,364	$ 11,630
Accumulated deficit		(350,553)	(246,564)
Sales and marketing		87,722	70,165
Operating profit (loss)		(108,632)	(55,398)
Profit (loss) before income taxes		(97,947)	(177,327)
Net profit (loss)		$ (103,989)	$ (178,885)
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)		$ 0.62
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)		$ 0.62
As Previously Reported | Common Class A
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)			$ (2.34)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)			(2.34)
As Previously Reported | Common Class B
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)			(2.34)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)			$ (2.34)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred contract acquisition costs		$ (1,981)	$ (1,265)	$ (700)
Accumulated deficit		(1,981)	(1,265)	$ (700)
Sales and marketing		716	545
Operating profit (loss)		(716)	(545)
Profit (loss) before income taxes		(716)	(545)
Net profit (loss)		$ (716)	$ (545)
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)		$ 0
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)		$ 0
Adjustment | Common Class A
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)			$ (0.01)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)			(0.01)
Adjustment | Common Class B
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)			(0.01)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)			$ (0.01)

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Rollforward of Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 487
Current period provision	198	$ 3	$ 268
Uncollectible accounts charged against the allowance	(170)
Recoveries of amounts previously deemed uncollectible	0
Ending balance	$ 515	$ 487

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Schedule of Property and Equipment (Details)	Dec. 31, 2023
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Furniture and office equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	7 years

Revenue Recognition - Revenue b

Revenue Recognition - Revenue by Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 297,610	$ 261,247	$ 229,141
Revenue Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100%	100%	100%
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	$ 182,806	$ 163,920	$ 163,681
UNITED STATES | Revenue Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	61%	63%	71%
EMEA
Disaggregation of Revenue [Line Items]
Revenues	$ 80,547	$ 71,443	$ 44,850
EMEA | Revenue Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	27%	27%	20%
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	$ 16,699	$ 12,005	$ 7,416
Asia Pacific | Revenue Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	6%	5%	3%
Israel
Disaggregation of Revenue [Line Items]
Revenues	$ 1,300	$ 3,300	$ 2,400
Americas
Disaggregation of Revenue [Line Items]
Revenues	$ 17,558	$ 13,879	$ 13,194
Americas | Revenue Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	6%	5%	6%

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues, Total	$ 297,610	$ 261,247	$ 229,141
Fraud Service Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	167,278	156,040	132,261
Indemnification Service Revenue
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	$ 130,332	$ 105,207	$ 96,880
Revenue Benchmark | Product Concentration Risk | Fraud Service Revenue
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	56%	60%	58%
Revenue Benchmark | Product Concentration Risk | Indemnification Service Revenue
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	44%	40%	42%

Revenue Recognition - Deferred

Revenue Recognition - Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Movement In Deferred Contract Acquisition Costs [Roll Forward]
Capitalized Contract Cost, Net, Noncurrent	$ 14,383	$ 10,365	$ 6,263
Increase (Decrease) To Deferred Contract Acquisition Costs	8,894	9,707	7,744
Capitalized Deferred Contract Acquisition Cost, Amortization	(7,715)	(5,689)	(3,642)
Capitalized Contract Cost, Net, Noncurrent	$ 15,562	$ 14,383	$ 10,365

Revenue Recognition - Deferre_2

Revenue Recognition - Deferred Contract Fulfillment Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Movement In Deferred Contract Fulfillment Costs [Roll Forward]
Deferred Contract Fulfillment Costs, Noncurrent	$ 3,673	$ 2,930	$ 2,166
Increase (Decrease) To Deferred Contract Fulfillment Costs	2,635	2,189	1,789
Deferred Contract Fulfillment Costs, Amortization Expense	(1,852)	(1,446)	(1,025)
Deferred Contract Fulfillment Costs, Noncurrent	$ 4,456	$ 3,673	$ 2,930

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government bonds included within short-term investments	$ 28,968	$ 0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid expenses and other current assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities
Fair Value, Recurring
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government bonds included within short-term investments	$ 28,968
Derivative financial instruments included in prepaid expenses and other current assets	308
Total financial assets	29,276
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Derivative financial instruments included in accrued expenses and other current liabilities	462	2,397
Total financial liabilities	462	2,397
Fair Value, Recurring | Fair Value, Inputs, Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government bonds included within short-term investments	0
Derivative financial instruments included in prepaid expenses and other current assets	0
Total financial assets	0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Derivative financial instruments included in accrued expenses and other current liabilities	0	0
Total financial liabilities	0	0
Fair Value, Recurring | Fair Value, Inputs, Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government bonds included within short-term investments	28,968
Derivative financial instruments included in prepaid expenses and other current assets	308
Total financial assets	29,276
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Derivative financial instruments included in accrued expenses and other current liabilities	462	2,397
Total financial liabilities	462	2,397
Fair Value, Recurring | Fair Value, Inputs, Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government bonds included within short-term investments	0
Derivative financial instruments included in prepaid expenses and other current assets	0
Total financial assets	0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Derivative financial instruments included in accrued expenses and other current liabilities	0	0
Total financial liabilities	$ 0	$ 0

Fair Value Measurements - Sch_2

Fair Value Measurements - Schedule of Short-term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	$ 28,882	$ 0
Gross Unrealized Gains	229
Gross Unrealized Losses	(143)
Fair Value	28,968	$ 0
Government bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	28,882
Gross Unrealized Gains	229
Gross Unrealized Losses	(143)
Fair Value	$ 28,968

Fair Value Measurements - Effec

Fair Value Measurements - Effective Contractual Maturity Dates (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Due in 1 year or less	$ 28,968
Fair Value	$ 28,968	$ 0

Derivative Instruments and He_3

Derivative Instruments and Hedging - Derivative Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivative instruments	$ 74,030	$ 77,812
Foreign Exchange Forward | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivative instruments	63,716	63,998
Foreign Exchange Forward | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivative instruments	$ 10,314	$ 13,814

Derivative Instruments and He_4

Derivative Instruments and Hedging - Effect of Foreign Currency Contracts on the Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	$ (4,951)	$ (3,331)	$ 0
Designated as Hedging Instrument | Revenue
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	168	0	0
Designated as Hedging Instrument | Cost of revenue
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	(146)	(175)	0
Designated as Hedging Instrument | Research and development
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	(2,659)	(1,718)	0
Designated as Hedging Instrument | Sales and marketing
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	(1,051)	(732)	0
Designated as Hedging Instrument | General and administrative
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	(1,263)	(706)	0
Designated as Hedging Instrument | Other income (expense), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	0	0	0
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	(534)	(1,659)	59
Not Designated as Hedging Instrument | Revenue
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	0	0	0
Not Designated as Hedging Instrument | Cost of revenue
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	0	0	0
Not Designated as Hedging Instrument | Research and development
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	0	0	0
Not Designated as Hedging Instrument | Sales and marketing
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	0	0	0
Not Designated as Hedging Instrument | General and administrative
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	0	0	0
Not Designated as Hedging Instrument | Other income (expense), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) recognized in earnings	$ (534)	$ (1,659)	$ 59

Derivative Instruments and He_5

Derivative Instruments and Hedging - Effect of Foreign Currency Contracts on Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Beginning balance	$ 494,436	$ 527,596	$ (44,029)
Other comprehensive profit (loss)	1,634	(1,883)	176
Ending balance	491,721	494,436	527,596
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Beginning balance	(1,707)	176	0
Amount of net gains (losses) recorded in accumulated other comprehensive profit (loss)	6,585	1,448	176
Other comprehensive profit (loss)	1,634	(1,883)	176
Ending balance	$ (73)	$ (1,707)	$ 176

Consolidated Balance Sheet Co_3

Consolidated Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 25,887	$ 26,019
Less: accumulated depreciation and amortization	(10,248)	(7,433)
Property and equipment, net	15,639	18,586
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,592	6,912
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,593	2,531
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 16,702	$ 16,576

Consolidated Balance Sheet Co_4

Consolidated Balance Sheet Components - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Depreciation	$ 3.6	$ 3.4	$ 1.8

Consolidated Balance Sheet Co_5

Consolidated Balance Sheet Components - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Customer credits	$ 6,724	$ 5,388
Accrued expenses	4,548	6,175
Derivative Instruments and Hedges, Liabilities	462	2,397
Other	1,062	1,853
Accrued expenses and other current liabilities	$ 12,796	$ 15,813

Consolidated Balance Sheet Co_6

Consolidated Balance Sheet Components - Other Liabilities, Noncurrent (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred Tax and Other Liabilities, Noncurrent	$ 14,706	$ 8,734
Other liabilities, noncurrent	$ 14,706	$ 8,734

Consolidated Balance Sheet Co_7

Consolidated Balance Sheet Components - Property, Plant and Equipment (by Geographic Region) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 15,639	$ 18,586
UNITED STATES
Property, Plant and Equipment [Line Items]
Property and equipment, net	1,403	1,796
Israel
Property, Plant and Equipment [Line Items]
Property and equipment, net	14,209	16,671
Rest of world
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 27	$ 119

Leases - Lease Cost (Details)

Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease cost	$ 6,242	$ 6,140
Variable lease cost	1,010	1,257
Short-term lease cost	170	304
Sublease income	(1,347)	(786)
Total operating lease cost	$ 6,075	$ 6,915

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2021	Dec. 31, 2022
Leases [Abstract]
Lease cost		$ 5,900
Sublease income		$ 100
Weighted average remaining lease term	6 years 6 months		7 years 4 months 24 days
Weighted average discount rate	4.60%		4.60%
Contractual obligation	$ 2,900		$ 3,000
Contractual obligation, term	3 months

Leases - Maturity Lease Schedul

Leases - Maturity Lease Schedule (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Leases [Abstract]
2024	$ 5,744
2025	5,714
2026	5,759
2027	5,804
2028	5,851
Thereafter	7,183
Total undiscounted lease payments	36,055
Less: imputed interest	(4,746)
Present value of operating lease liabilities	$ 31,309

Leases (By Geographic Region) (

Leases (By Geographic Region) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease right-of-use assets	$ 29,742	$ 35,158
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	29,742	35,158
Israel
Leases [Abstract]
Operating lease right-of-use assets	18,782	22,560
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	18,782	22,560
UNITED STATES
Leases [Abstract]
Operating lease right-of-use assets	10,960	12,598
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 10,960	$ 12,598

Guarantees, Commitments, and _3

Guarantees, Commitments, and Contingencies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Guarantee obligations	$ 12,719	$ 12,361
Guarantee obligations, term	six
Provision for chargebacks, net	$ 12,092	11,980
Guarantor obligations, maximum exposure	$ 57,200,000
Percentage of guarantees paid	0.10%
Chargeback expense	$ 121,800	103,200	$ 85,500
Lease cost			5,900
Sublease income			$ 100
Contractual obligation	$ 2,900	$ 3,000
Contractual obligation, term	3 months

Guarantees, Commitments, and _4

Guarantees, Commitments, and Contingencies - Non-Cancelable Purchase Obligations Maturity Schedule (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2024	$ 1,106
2025	512
2026	96
Total	$ 1,714

Ordinary Share Warrants (Detail

Ordinary Share Warrants (Details) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Temporary Equity [Line Items]
Total ordinary shares reserved (in shares)	41,546,857	43,647,083
Options and RSUs | 2013 Equity Incentive Plan
Temporary Equity [Line Items]
Total ordinary shares reserved (in shares)	15,981,269	20,062,824
Common Class A
Temporary Equity [Line Items]
Issued and Outstanding Share Warrants (in shares)	499,500	924,825
Common Class B
Temporary Equity [Line Items]
Issued and Outstanding Share Warrants (in shares)	0	850,650
Warrants to purchase ordinary shares | Common Class A
Temporary Equity [Line Items]
Issued and Outstanding Share Warrants (in shares)		425,325
Weighted-Average Exercise Price (in dollars per share)	$ 0.28
Warrants to purchase ordinary shares | Common Class B
Temporary Equity [Line Items]
Issued and Outstanding Share Warrants (in shares)		850,650
Weighted-Average Exercise Price (in dollars per share)	$ 0.28
Warrants issued to customers | Common Class A
Temporary Equity [Line Items]
Issued and Outstanding Share Warrants (in shares)	499,500	499,500
Weighted-Average Exercise Price (in dollars per share)	$ 0.01	$ 0.01
Warrants issued to customers | Common Class B
Temporary Equity [Line Items]
Issued and Outstanding Share Warrants (in shares)	0	0
Weighted-Average Exercise Price (in dollars per share)	$ 0	$ 0

Ordinary Shares and Equity In_3

Ordinary Shares and Equity Incentive Plan - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 31, 2021	Jul. 27, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased (in shares)	3,038,865
Shares repurchased	$ 13,155
Transaction costs	$ 100
Total ordinary shares reserved (in shares)	41,546,857	43,647,083
Granted (in shares)	10,904,664
Total share-based compensation expense	$ 62,410	$ 67,467	$ 33,358
2021 Employee Share Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)					3,742,961
Ordinary shares reserved for future issuance, annual increase percentage					1%
Maximum ownership of shares					5%
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in dollars per share)		900,000,000		900,000,000
Common Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in dollars per share)		232,500,000		232,500,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition	3 years 3 months 18 days
Share-based compensation expense not yet recognized	$ 115,000
Restricted Stock Units (RSUs) | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 8,600	$ 13,000	6,000
Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	6 months
Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	7 years
Share-based Payment Arrangement, Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Award expiration period	10 years
Weighted average grant date fair value of options granted in period (in dollars per share)		$ 16.63
Aggregate grant date fair value of options vested during the period	$ 6,900	$ 12,000	$ 3,200
Share-based payment arrangement, nonvested award, cost not yet recognized amount	$ 6,400
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition	1 year 3 months 18 days
Expected dividend yield	0%		0%
2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)	8,766,560	8,674,132		13,951,037
Ordinary shares reserved for future issuance, annual increase percentage				5%

Ordinary Shares and Equity In_4

Ordinary Shares and Equity Incentive Plan - Schedule of Ordinary Shares Reserved for Issuance (Details) - shares	Dec. 31, 2023	Dec. 31, 2022	Jul. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)	41,546,857	43,647,083
2013 Equity Incentive Plan | Options and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)	15,981,269	20,062,824
2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)	8,766,560	8,674,132	13,951,037
2021 Equity Incentive Plan | Options and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)	16,299,528	13,134,652
Warrants To Purchase Ordinary Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total ordinary shares reserved (in shares)	499,500	1,775,475

Ordinary Shares and Equity In_5

Ordinary Shares and Equity Incentive Plan - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Outstanding Share Options, beginning balance (in shares)	13,785,214
Outstanding Share Options, Options exercised (in shares)	(3,010,478)
Outstanding Share Options, Options forfeited (in shares)	(405,202)
Outstanding Share Options, ending balance (in shares)	10,369,534	13,785,214
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-Average Exercise Price, beginning balance (in dollars per share)	$ 2.17
Weighted-Average Exercise Price, Options exercised (in dollars per share)	1.22
Weighted-Average Exercise Price, Options forfeited (in dollars per share)	3.72
Weighted-Average Exercise Price, ending balance (in dollars per share)	$ 2.39	$ 2.17
Stock Options Additional Disclosures
Weighted-Average Remaining Contractual Life, Options outstanding	5 years 6 months	6 years 1 month 6 days
Aggregate Intrinsic Value, Options outstanding	$ 24,303	$ 34,326
Aggregate Intrinsic Value, Options exercised	$ 11,300	$ 17,400	$ 68,600
Outstanding Share Options, Options exercisable (in shares)	8,849,876
Weighted-Average Exercise Price, Options exercisable (in dollars per share)	$ 2.13
Weighted-Average Remaining Contractual Life, Options exercisable	5 years 2 months 12 days
Aggregate Intrinsic Value, Options exercisable	$ 22,904
Share-based Payment Arrangement, Option
Stock Options Additional Disclosures
Share-based payment arrangement, nonvested award, cost not yet recognized amount	$ 6,400

Ordinary Shares and Equity In_6

Ordinary Shares and Equity Incentive Plan - Black-Scholes Assumptions (Details) - Share-based Payment Arrangement, Option	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		67.26%
Expected dividend yield	0%	0%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (years)		5 years 5 months 8 days
Risk-free interest rate		0.99%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (years)		6 years 7 months 6 days
Expected volatility		68.52%
Risk-free interest rate		1.12%

Ordinary Shares and Equity In_7

Ordinary Shares and Equity Incentive Plan - RSU Activity (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Number of Shares
Unvested as of December 31, 2020 (in shares) | shares	19,412,262
Granted (in shares) | shares	10,904,664
Vested (in shares) | shares	(6,365,261)
Forfeited (in shares) | shares	(2,040,402)
Unvested as of December 31, 2021 (in shares) | shares	21,911,263
Weighted-Average Grant-Date Fair Value Per Share
Unvested beginning balance, Weighted-Average Grant-Date Fair Value Per Share (in dollars per share) | $ / shares	$ 9.06
Granted, Weighted-Average Grant-Date Fair Value Per Share (in dollars per share) | $ / shares	5.43
Vested, Weighted-Average Grant-Date Fair Value Per Share (in dollars per share) | $ / shares	7.28
Forfeited, Weighted-Average Grant-Date Fair Value Per Share (in dollars per share) | $ / shares	6.31
Unvested ending balance, Weighted-Average Grant-Date Fair Value Per Share (in dollars per share) | $ / shares	$ 8.02

Ordinary Shares and Equity In_8

Ordinary Shares and Equity Incentive Plan - Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 62,410	$ 67,467	$ 33,358
Chief Executive Officer | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	8,600	13,000	6,000
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	770	621	216
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	13,152	10,005	4,246
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	19,420	18,253	10,710
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 29,068	$ 38,588	$ 18,186

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance for deferred tax asset	$ 3,000	$ 12,100	$ 4,400
Unrecognized tax benefits	16,512	11,252	$ 4,119	$ 234
Unrecognized tax benefits, income tax penalties and interest expense	1,000	320
Domestic Tax Authority
Income Tax Contingency [Line Items]
Operating loss carryforwards	75,700	68,900
Foreign Tax Authority
Income Tax Contingency [Line Items]
Operating loss carryforwards	11,700	11,200
State and Local Jurisdiction | UNITED STATES
Income Tax Contingency [Line Items]
Operating loss carryforwards	24,800	16,600
State and Local Jurisdiction | UNITED STATES | Tax Year 2042
Income Tax Contingency [Line Items]
Operating loss carryforwards	23,300	15,400
State and Local Jurisdiction | UNITED STATES | Do not expire
Income Tax Contingency [Line Items]
Operating loss carryforwards	$ 1,500	$ 1,200

Income Taxes - Schedule of Prof

Income Taxes - Schedule of Profit (Loss) before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Contingency [Line Items]
Profit (loss) before income taxes	$ (53,237)	$ (98,663)	$ (177,872)
Israel
Income Tax Contingency [Line Items]
Profit (loss) before income taxes	(23,269)	(55,414)	(154,549)
International
Income Tax Contingency [Line Items]
Profit (loss) before income taxes	$ (29,968)	$ (43,249)	$ (23,323)

Income Taxes - Schedule of Prov

Income Taxes - Schedule of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Examination [Line Items]
Total current income tax expense	$ 5,814	$ 8,719	$ 125
Total deferred income tax expense	(16)	(2,677)	1,433
Total provision for income taxes	5,798	6,042	1,558
Israel
Income Tax Examination [Line Items]
Total current income tax expense	(225)	4	4
Total deferred income tax expense	0	0	0
International
Income Tax Examination [Line Items]
Total current income tax expense	6,039	8,715	121
Total deferred income tax expense	$ (16)	$ (2,677)	$ 1,433

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Effective Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Contingency [Line Items]
Israel tax benefit at statutory rate	$ (12,245)	$ (22,528)	$ (40,784)
Preferred enterprise	1,652	10,573	3,052
Foreign rate differential	(785)	(1,050)	912
Share-based compensation	8,158	9,717	1,753
Prior year tax income/(expense)	(302)	(6,675)	84
Permanent differences	587	(3,351)	98
Uncertain tax position	5,772	7,233	3,784
Change in valuation allowance	2,961	12,123	4,444
Total provision for income taxes	$ 5,798	$ 6,042	$ 1,558
Corporates tax rate	10.89%	6.12%	0.88%
Warrants to purchase ordinary shares
Income Tax Contingency [Line Items]
Warrant revaluation	$ 0	$ 0	$ 23,325
Convertible Preferred Share Tranche Rights [Member]
Income Tax Contingency [Line Items]
Warrant revaluation	$ 0	$ 0	$ 4,890

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Research and development expenses	$ 7,550	$ 7,374	$ 1,436
Net operating loss	10,333	9,059	5,212
Deferred Compensation	6,762	5,214	1,009
Operating lease liabilities	5,565	6,456	0
Vacation and convalescence	746	730	799
Bad debts	84	78	93
Other	1,946	2,166	466
Gross deferred tax assets	32,986	31,077	9,015
Valuation allowance	(23,783)	(20,822)	(8,699)
Total deferred tax assets	9,203	10,255	316
Deferred tax liabilities:
Operating lease right-of-use assets	(5,577)	(6,387)	0
Deferred contract acquisition costs	(2,971)	(3,009)	(2,324)
Property and equipment	(109)	(279)	(283)
Capitalized Software	(541)	(591)	(397)
Gross deferred tax liabilities	(9,198)	(10,266)	(3,004)
Net deferred tax assets/(liabilities)	5
Net deferred tax assets/(liabilities)		(11)	(2,688)
Increase (decrease) in valuation allowance for deferred tax asset	$ 3,000	$ 12,100	$ 4,400

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of Unrecognized Tax Position (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 11,252	$ 4,119	$ 234
Additions based on tax positions related to current year	5,273	7,187	3,885
Reductions for tax positions of prior years	(13)	(54)	0
Ending balance	16,512	11,252	$ 4,119
Unrecognized tax benefits, income tax penalties and interest expense	$ 1,000	$ 320

Net Profit (Loss) Per Share A_3

Net Profit (Loss) Per Share Attributable to Ordinary Shareholders - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, basic (in shares)	176,773,398	167,667,374	76,459,625
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	176,773,398	167,667,374	76,459,625
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)		$ 0.62
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)		$ 0.62
Common Class A
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net profit (loss) attributable to ordinary shareholders, basic			$ (90,953)
Net profit (loss) attributable to ordinary shareholders, diluted	$ (38,407)	$ (57,734)	$ (90,953)
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, basic (in shares)			38,757,558
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	115,005,250	92,450,867	38,757,558
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Common Class B
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net profit (loss) attributable to ordinary shareholders, basic	$ (20,628)	$ (46,971)	$ (88,477)
Net profit (loss) attributable to ordinary shareholders, diluted			$ (88,477)
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	61,768,148	75,216,507	37,702,067
Net profit (loss) per share attributable to ordinary shareholders, basic (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)
Net profit (loss) per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (0.33)	$ (0.62)	$ (2.35)

Net Profit (Loss) Per Share A_4

Net Profit (Loss) Per Share Attributable to Ordinary Shareholders - Schedule of Anti-Dilutive Securities (Details) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	176,773,398	167,667,374	76,459,625
Common Class A
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	35,754,530	33,117,365	33,107,849
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	115,005,250	92,450,867	38,757,558
Common Class B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	753,565	2,981,665	37,954,251
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average shares used in computing net profit (loss) per share attributable to ordinary shareholders, diluted (in shares)	61,768,148	75,216,507	37,702,067
Convertible Preferred Stock | Common Class A
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	17,817,201
Convertible Preferred Stock | Common Class B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	35,634,404
Warrants to purchase ordinary shares | Common Class A
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	725,334	873,370	1,488,819
Warrants to purchase ordinary shares | Common Class B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	753,565	850,650	354,243
Share-based Payment Arrangement | Common Class A
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	11,654,082	16,067,720	12,239,441
Share-based Payment Arrangement | Common Class B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	0
Restricted Stock Units (RSUs) | Common Class A
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	23,375,114	16,176,275	1,562,388
Restricted Stock Units (RSUs) | Common Class B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	2,131,015	1,965,604

Employee Benefit Plans - Narrat

Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Employer matching contribution, percent of match	100%
Employer matching contribution, percent of employees' pay	4%
Defined contribution plan, cost	$ 1.5	$ 1.1	$ 0.8
Severance pay rate	8,330%
Severance costs	$ 4.2	$ 4.5	$ 3.8

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event $ in Thousands	1 Months Ended
	Feb. 29, 2024 USD ($)
Subsequent Event [Line Items]
Percentage of Company's workforce to be impacted (percent)	6%
Expected costs to be incurred	$ 2,000

SEC Schedule, Article 12-09, _2

SEC Schedule, Article 12-09, Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Guarantee obligations
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 12,361	$ 12,112	$ 12,445
increase	135,942	106,587	96,383
Decrease	(135,584)	(106,338)	(96,716)
Balance at end of period	12,719	12,361	12,112
Provision for chargebacks, net
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	11,980	12,020	10,582
increase	121,762	103,196	85,451
Decrease	(121,650)	(103,236)	(84,013)
Balance at end of period	$ 12,092	$ 11,980	$ 12,020