NEW YORK, Sept. 15, 2008 (GLOBE NEWSWIRE) -- ACI Worldwide (NasdaqGS:ACIW - News), a leading international provider of software for electronic payment systems, today announced that Societe Generale is using ACI Enterprise Banker(tm) as the online banking product for the business banking activities of its North American clients. Societe Generale is implementing Enterprise Banker modules for Information Reporting, Wire Transfer and Wire Reporting, Special Reports, ACH, Stop Payments, Positive Pay and Remote Deposit Capture. The bank is using RSA(r) Go ID Authentication Service for additional user access security. Societe Generale leveraged the ACI On Demand hosted services environment to accelerate system implementation.

``With Enterprise Banker, Societe Generale will implement a single product that can scale to meet the needs of all customers, regardless of size,'' said Ralph Dangelmaier, president of the Americas at ACI Worldwide. ``Our enterprise approach means that the full range of Enterprise Banker functionality is available to all Societe Generale customers, simply by turning on services. This inherent flexibility in our system gives the bank a significant competitive advantage, allowing it to easily adapt to changing customer needs.''

About Societe Generale

Societe Generale is one of the largest financial services groups in the euro-zone. The Group employs 151,000 people worldwide in three key businesses:

      * Retail Banking & Financial Services: Societe Generale serves 30
        million individual customers worldwide.
      * Global Investment Management & Services: Societe Generale is
        one of the largest banks in the euro-zone in terms of assets
        under custody (EUR 2 731 billion, Mar. 2008) and under
        management (EUR 391 billion, March. 2008)
      * Corporate & Investment Banking: Societe Generale ranks among
        the leading banks worldwide in euro capital markets,
        derivatives and structured finance.

Societe Generale is included in the five major socially-responsible investment indexes.

http://www.socgen.com

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's solutions enable online payment processing, online banking, fraud prevention and detection, and back office services such as settlement, account management, card management and dispute processing. ACI solutions provide market-leading levels of reliability, manageability and scale to over 800 customers in 88 countries. Visit ACI Worldwide at http://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 ACI Worldwide Incorporated, 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 risk factors, parties that are relying on the forward-looking statements should review the Company's filings with the Securities and Exchange Commission, including the Company's Form 10-K filed on January 30, 2008, the Company's Form 10-Q filed on February 19, 2008, both as amended by the Form 10-K/A and Form 10-Q/A, respectively, filed on March 4, 2008, the Company's 10-Q filed on May 9.2008, and the Company's 10-Q filed on August 11, 2008.

          ACI Worldwide
          Jim Maxwell
          402.390.8906
          jim.maxwell@aciworldwide.com