ACI Worldwide Inc To Release First Quarter 2009 Financial Results

Wednesday, April 22, 2009

Conference Call Scheduled for May 6, 2009 at 8.30 am EDT

There will be an encore replay available for two weeks on (800) 642-1687 for US/Canada Dial-In and (706) 645- 9291 for International Dial-In participants. Conference code 96839292.

Notes to editors

About ACI Worldwide, Inc.
ACI Worldwide is a leading provider of electronic payments software and services to major banks, retailers and processors around the world. The company enables online payment processing, online banking, fraud prevention and detection, and back-office services. ACI solutions provide market-leading levels of reliability, manageability and scale, to more than 800 customers in 88 countries. Visit ACI Worldwide at