Press Release

ACI Worldwide Inc Announces Annual Meeting of Stockholders

March 5, 2008
ACI Worldwide Inc Announces Annual Meeting of Stockholders

Stockholders of record at the close of business on April 14, 2008 are entitled to notice of, and to vote at, the 2008 Annual Meeting of Stockholders or at any adjournments or postponements of the meeting. ACIW currently expects to begin mailing proxy materials (including the Annual Report and Proxy Statement) on or about April 21, 2008. 

Stockholders will be able to vote in one of four ways: by Internet, by telephone, by written proxy card, or by written ballot at the meeting. Explanations of each will be provided in the Proxy Statement.

About ACI Worldwide, Inc.

Every second of every day, ACI Worldwide solutions are at work processing electronic payments, managing risk, automating back office systems and providing application infrastructure services.   ACI is a leading international provider of solutions for banking, retail and cross-industry systems.  ACI serves more than 800 customers in 84 countries including many of the world's largest financial institutions, retailers and payment processors.  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