EXHIBIT 16.1 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 June 8, 2001 Dear Sir/Madam: We have read Item 4(a) included in the Form 8-K dated June 4, 2001 of Digital Courier Technologies, Inc. to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, By: /s/ Arthur Andersen LLP - --------------------------- Arthur Andersen LLP cc: Mr. John Hanlon, CFO, Digital Courier Technologies, Inc.