(New York, N.Y. – 31 July 2008) – ACI Worldwide, Inc. (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced the latest version of BASE24-eps™, the company’s market-leading software for online payments processing.  BASE24-eps Release 1 Version 08.2 offers standard support for IBM’s “blue stack” database, middleware and security capabilities on the IBM System z platform.  It also features enhanced security and a more flexible infrastructure to easily accommodate future updates and compliance regulations such as the latest Payment Card Industry (PCI) Data Security Standard (DSS). Today’s announcement marks a significant milestone in the strategic alliance announced by ACI and IBM in December 2007.  One of the hallmark goals of the alliance included technology solutions to help financial institutions meet aggressive growth objectives.  ACI’s payment engine will bring IBM’s flagship mainframe capabilities to front-end systems, priming these complex and disparate networks for the industry’s most powerful virtualization, security and scalability. 

(NEW YORK — July 23, 2008) —   ACI Worldwide, Inc. (NASDAQ: ACIW) today announced that it will hold a conference call on August 12, 2008 at 8:30 am EDT to discuss the June 30, 2008 quarterly financial results.  Interested persons may access a real-time audio broadcast of the teleconference at www.aciworldwide.com/investors or use the following numbers for dial in participation:  US/Canada: (800) 340-8364, International/Local:  (706) 634-2207.   Please provide your name, the conference name ACI Worldwide, Inc. and conference code 57035367.