Press Release

ACI Worldwide Inc To Release Fourth Quarter and Calendar Year 2009 Financial Results

February 4, 2010
ACI Worldwide Inc To Release Fourth Quarter and Calendar Year 2009 Financial Results

There will be a replay available for two weeks on (800) 642-1687 for US/Canada Dial-In and (706) 645- 9291 for International/Local Dial-In participants. Conference Code 54730062.

About ACI Worldwide

ACI Worldwide is a leading provider of software and services solutions to initiate, manage, secure and operate electronic payments for major banks, retailers and processors around the world. ACI Agile Payments Solution offers a vision for the future for financial institutions of an integrated solution that can meet all their payment needs – from a single service to a complete toolset. Today, ACI products deliver payment processing, online banking, fraud prevention and detection, and back-office services. ACI solutions provide agility, reliability, manageability and scale to customers around the world. Visit ACI Worldwide at www.aciworldwide.com.

Investor Contacts

John Kraft, Head of Strategy & Finance
Email: john.kraft@aciworldwide.com

Global Headquarters:
ACI Worldwide
2811 Ponce de Leon Blvd, PH1
Coral Gables, FL 33134