ACI Selected as Member of New Hong Kong Passport Development Team.

ACI Joins Consortium of Suppliers to Develop and Deliver e-Passport Solution

OMAHA, Neb. -- ACI Worldwide (NASDAQ:TSAI), a leading international provider of enterprise payment solutions, today announced that the company has been selected as the exclusive supplier of the Travel Document Management System for the Electronic Passport System (e-Passport) of the Immigration Department, Hong Kong. The e-Passport project will leverage ACI Smart Chip Manager([TM]) software to offer the Hong Kong Immigration Department an end-to-end solution for e-passport issuing and lifecycle management - including stock management and post issuance updating.

"ACI Smart Chip Manager is recognized as a leading smart card management solution for banking and ID, where security, performance and flexibility are critical," said Don McLarty, President Asia/Pacific, ACI Worldwide. "The project will capitalize on Smart Chip Manager's advanced functionality, much of which has already been implemented in the state-of-the-art Hong Kong Smart ID Card System."

The e-Passport project was started in January 2006. The system is set up to produce 3500 electronic travel documents per day.

Smart Chip Manager offers a multifunction lifecycle management solution designed to control every aspect of a smart card and the applications that reside on it. In the case of the e-Passport project, the software will enable e-passport issuing and lifecycle management including stock management functionality where the solution manages the e-passport stock in branches and headquarters. Essentially the software will manage the various electronic travel documents as if they were smart cards.

About Immigration Department of the Government of the Hong Kong SAR 

The Immigration Department, apart from controlling the movement of people into and out of the HKSAR, also provides services to local residents including the issue of HKSAR passports and other travel documents, visas and identity cards, the handling of nationality matters and the registration of births, deaths and marriages. Considerable effort also goes into detecting and prosecuting immigration law offenders, and removing illegal immigrants.

About ACI Worldwide

Every second of every day, ACI solutions are at work processing electronic payments, managing risk, automating back office systems and providing application infrastructure services. Founded in 1975, ACI is a leading international provider of solutions for consumer and wholesale banking, retail and cross-industry systems. ACI serves nearly 800 customers in 83 countries including many of the world's largest financial institutions, retailers and payment processors. Visit ACI Worldwide on the Internet at www.aciworldwide.com.

Any statements in this press release regarding projected results are preliminary and "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, this press release may contain other forward-looking statements including statements regarding Transaction Systems Architects, Inc.'s ("TSA"), its subsidiaries or third parties' expectations, predictions, views, opportunities, plans, strategies, beliefs, and statements of similar effect. The forward-looking statements in this press release are subject to a variety of risks and uncertainties. Actual results could differ materially.

For a detailed discussion of these and other risk factors, interested parties should review the Company's filings with the Securities and Exchange Commission, including the Company's Form 10-K filed on December 14, 2005, the Company's Form 10Q filed on February 9, 2006, the Company's Form 10Q filed on May 10, 2006, and the Company's Form 10Q filed on August 9, 2006.