SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2004 S1 CORPORATION -------------- (Exact name of registrant as specified in its charter) Delaware 000-24931 58-2395199 -------- --------- ---------- (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 3500 Lenox Road, Suite 200, Atlanta, Georgia 30326 -------------------------------------------------- (Address of principal executive offices) Registrant's telephone number, including area code: (404) 923-3500 -------------- Not Applicable -------------- (Former name or former address, if changed since last report) Item 12. Results of Operation and Financial Condition. --------------------------------------------- On July 29, 2004, S1 Corporation ("S1") issued a press release announcing the results of operations for the quarter ended June 30, 2004. That press release is filed as Exhibit 99.1 to this report. Also on July 29, 2004, S1 held a conference call during which S1 discussed its second quarter results and presented certain other material relating to S1 and its operations. A replay of the conference call is available for playback two hours after the conference call is complete by dialing 800-626-7250. The access code is 8647915. The replay will be active until 5:00 p.m. EDT on August 5, 2004. (c) Exhibits Exhibit No. Description --- ----------- 99.1 Press release dated July 29, 2004. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. S1 CORPORATION -------------- (Registrant) /s/ Richard P. Dobb ------------------------------------ Richard P. Dobb Vice President, General Counsel and Secretary Date: July 29, 2004 EXHIBIT INDEX Exhibit No. Description --- ----------- 99.1 Press release dated July 29, 2004.