(An IBM Release)

NEW YORK, N.Y. – 17 Dec 2007: IBM (NYSE: IBM) and ACI Worldwide  (NASDAQ: ACIW) today announced a significantly expanded strategic alliance to create an end-to-end solution for electronic payments powered by IBM’s open technology. As part of the alliance, ACI will optimize a new generation of payment solutions on the IBM System z platform including IBM DB2, WebSphere, and Tivoli software and Crypto-chip technology.  The optimization supports the convergence of retail and wholesale payments through the use of service oriented architecture (SOA) including IBM’s Payments Framework.

 (New York, NY. – 13 November 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of solutions for enterprise electronic payment systems, today announced a new solution designed to support deposit automation requirements for domestic financial institutions.  As technology at the ATM advances, and interest grows among financial institutions, consumers and small businesses for more efficient deposit and check automation processes, ACI’s solution represents a timely answer.  ACI’s BASE24-atm® self-service banking modules and BASE24-infobase™ solution combine to offer financial institutions the features necessary to facilitate enhanced deposit automation offerings, lowering costs while providing new revenue sources for ATM deployers.  

(New York, N.Y.  – 13 November 2007) – ACI Worldwide (Nasdaq: ACIW), a leading international provider of solutions for enterprise electronic payment systems, today announced the ACI Dispute Management System™.  The software is a powerful rules-based solution that automates the resolution of cardholder disputes and processing of chargebacks to help control processing costs and enhance  efficiency in back-office operations.  The solution enables card issuing and transaction acquiring institutions to automate tasks associated with dispute processing, guiding staff through the tasks that require human intervention to increase productivity and reduce training time while controlling exposure to losses due to write-offs and un-timely dispute handling.

 (New York, NY. – 12 November 2007) – Building on more than 30 years of leadership in the payments industry, ACI Worldwide (NASDAQ: ACIW), an international provider of software for electronic payment systems, today announced the introduction of ACI prepaid solutions.   Preconfigured to automate critical business processes related to prepaid cards, ACI solutions address the demand from retailers and financial institutions to meet the needs of their growing prepaid programs.  The solutions can be implemented as a complete suite or a on a modular basis depending on customer requirements.

 (New York, N.Y. – 06 November 2007) — ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced that San Antonio-based Frost is live on BASE24-eps™ version 6.4 and ACI Payments Manager™ version 6.4 running in an open systems environment.  Frost, the banking, investments and insurance subsidiary of Cullen/Frost Bankers, Inc, is one of the largest banking organizations based in Texas, with $13.2 billion in assets. The company first implemented BASE24-eps in 2005 to replace an outsourced ATM solution.  The bank’s migration to BASE24-eps version 6.4 will bring over 300 ATMs in-house from the bank’s existing processor.  This will give the bank more control over ATM operations and optimize the use of new services and features for their customers.

 (New York, N.Y. – 31 October 2007) — ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced that Westsphere Systems has selected BASE24® and ACI Payments Manager™ to enable Westsphere to become a new ATM/POS acquirer in the Canadian market.  The solution will operate in an ACI On Demand™ hosted services environment.  With an initial deployment of 1,500 devices nationwide, Westsphere plans to leverage their On Demand solution and expand their network over time.

 (New York, N.Y. – 23 October 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced that it will offer enhanced mobile banking capabilities to its online banking customers.  The mobile banking solution integrates downloadable application software with ACI Worldwide’s industry-leading online banking solution, ACI Enterprise Banker™.  ACI’s business and consumer online banking customers will be able to use their cell phones, wireless handheld devices, or other handset devices to view information and perform online functions.  Banks will be able to offer mobile access as an alternate channel while leveraging investment in Enterprise Banker data, entitlements and authentication.

 (New York, N.Y. – 23 October 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced that Flushing Savings Bank has selected ACI Enterprise Banker™ and ACI Money Transfer System™ as the cornerstones of its online business banking initiative.  ACI Enterprise Banker will allow Flushing to meet the online banking needs of all business customers, from small-businesses up through large corporations, from a single product.  The ACI Money Transfer System automates wire processing for global payments processing and risk management.  Together the solutions provide straight through processing for end-to-end payment processing and management.  The bank, with $3.2 billion in assets and fourteen banking offices in the New York metropolitan area, will leverage ACI’s On Demand hosted services environment to reduce time-to-market and accelerate delivery of the new online banking and wire transfer products.

(New York, N.Y. – 22 October 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, and Parsam Technologies, the provider of uMonitor financial services, today announced a partnership that will combine ACI’s leading online banking products, ACI Enterprise Banker™ and ACI Enterprise Enrollments™, with uMonitor’s uOpen & uFund™, the online account opening and funding solution, and uTransfer™, the account-to-account money transfer solution.  uMonitor provides next-generation online banking services for customer acquisition and retention.  Adding uMonitor’s account opening and funding to ACI’s enterprise enrollments solution will offer financial institutions a powerful end-to-end online delivery solution for on-boarding new retail and commercial customers. 

 (New York, NY – 03 October 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced that The Bank of New York Mellon has implemented a global wholesale payments hub from ACI as the bank’s global clearing and settlement connection.  The bank is leveraging the ACI Money Transfer System™ for SWIFT, The Clearing House Interbank Payments System (CHIPS) processing and as an interface to the U.S. Federal Reserve Bank Fedwire system.  The bank is one of the first large banks to connect to CHIPS via its new, private IP network protocol.  Future phases will interface to additional central banking systems, messaging systems, net settlement systems and clearing houses, such as Fed Book Entry Securities and Telex.  In addition, the bank is leveraging the scalability of ACI’s solution to centrally manage large-scale liquidity transactions and enhance monitoring capabilities.

(Watford, U.K. – 11 September 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of enterprise payments solutions, today announced the release of a new software package to enable chip card data preparation.  DataPrep Plus provides affordable and powerful chip card data preparation services that are easy to integrate with existing issuer systems.  DataPrep Plus supports key smart card management functions and populates a chip card database with all relevant chip data from each issued card.  This enables issuers to offer more sophisticated chip card solutions like EMV issuer scripting, leveraging their initial investment in data preparation.

 (Omaha, Neb. – 11 September 2007) – ACI Worldwide (NASDAQ: ACIW), a leading international provider of software for electronic payment systems, today announced that more than 200 attendees convened at the ACI Customer Exchange (ACE) in Arlington, Virginia, to address the most pressing issues in retail and banking, including anti-money laundering, the prepaid card market, ATM operations, self service kiosk trends and risk management.  The ACI Customer Exchange (ACE) is a highly effective user group organization representing a diverse base of ACI product users in multiple industry segments.  Participating ACI customers include Bank of America, National Australia Bank, U.S. Bank and TD Canada Trust. Each year the annual meeting provides a collaborative customer environment that helps users maximize their investment and drive innovation within ACI’s software solutions. 

 (New York – 10 September 2007) – ACI Worldwide (NASDAQ: ACIW) announced that they are collaborating with IBM to help customers plan and implement upgrades to their legacy payment systems to take advantage of the newest generation of application software from ACI.  The company's BASE24-eps™ solution is the focus of the ACI/IBM efforts.

 (Omaha, Neb. – 18 July 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, has been recognized by Greenwich Associates for the quality of its ACI Enterprise Banker solution.  In Greenwich Associates’ Online Services Benchmarking study, which compares the features and functionality of leading online banking platforms, ACI’s Enterprise Banker receives high marks on platform navigability, ease of setting up new users and its strength in several product categories, notably ACH.  The study is based on in-depth evaluations of Web-based platforms performed by Greenwich consultants.

 (Omaha, Neb. – 11 July 2007) — ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced that e-Kencana Sdn Bhd (eKSB) has purchased ACI’s flagship payment engine, BASE24®, as well as the ACI Card Management System™ and ACI Smart Chip Manager™ from ACI’s payments management suite to establish the world's first fully Syariah-compliant Islamic Payment Switch (IPS).

 (Omaha, Neb. – 21 June 2007) — ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced that the Malaysian Electronic Payment System (1997) Sdn Bhd (MEPS) has completed its BASE24® Release 6 upgrade and extended its partnership with ACI.  MEPS has been an ACI customer for nearly ten years.

(NEW YORK, N.Y. — June 5, 2007) — Transaction Systems Architects, Inc. (Nasdaq:TSAI), today announced its expected timing for regulatory filings and adjusted financial guidance for calendar year 2007.  We are adjusting our calendar year 2007 financial guidance based on items disclosed in our recent regulatory filings. 

(Watford, England – 5 June 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced a contract to deploy BASE24-eps™ software to facilitate and secure payment transactions across the Partecis platform.

(Watford, England. – 24 April 2006) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of enterprise payment solutions, today announced that Zenith Bank Plc, a leading West African Bank based in Lagos, Nigeria, has selected ACI Proactive Risk ManagerTM software to automate its procedures in order to comply with the national Money Laundering Prohibition Act of 2004.

(Omaha, Neb. – 16 April 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced its strategy for leveraging the recently acquired trade finance and cash management solutions of Visual Web Solutions, Inc.  The acquisition allows ACI to expand its global cash management capabilities with multi-language and multi-currency support, while offering an end-to-end trade finance solution for both traditional and open account trading. 

(Omaha, Neb. – 16 April 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced a series of customer agreements that demonstrate momentum in the wholesale banking business.   These include a combination of new customers, existing customers licensing capacity upgrades, and customers migrating to the newest versions of ACI software to take advantage of the latest functionality. 

(NEW YORK — April 3, 2007) — Transaction Systems Architects, Inc. (NASDAQ: TSAI), provider of ACI Worldwide-branded enterprise electronic payments solutions, announced the acquisition of Stratasoft Sdn Bhd, a leading provider of electronic payment solutions in Malaysia.  Stratasoft, headquartered in Kuala Lumpur, was founded in 1994 and has been a distributor partner of ACI’s in Malaysia since 1995. Stratasoft’s customers include 7 of the 10 commercial banks in Malaysia, as well as the country’s only government bank. 

(NEW YORK, N.Y. — March 1, 2007) — Transaction Systems Architects, Inc. (Nasdaq:TSAI), today provided an update on strategic and financial activities currently underway, including the following:

(NEW YORK — January 4, 2007) — Transaction Systems Architects, Inc. (NASDAQ: TSAI) (the “Company”) today announced that on January 3, 2007 it received a written Staff Determination notice from the NASDAQ Stock Market (“NASDAQ”) stating that the Company is not in compliance with NASDAQ’s Marketplace Rule 4310(c)(14) because it did not timely file its Annual Report on Form 10-K for the fiscal year ended September 30, 2006 and, therefore, its common stock is subject to delisting from The NASDAQ Global Select Market.  NASDAQ Marketplace Rule 4310(c)(14) requires the Company to make on a timely basis all filings with the Securities and Exchange Commission, as required by the Securities Exchange Act of 1934, as amended.

(Omaha, Neb. – 20 February 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payments, today announced the launch of its ACI On Demand offering, allowing financial institutions and retailers in North America to use the company’s world-class payments software through a hosted solution arrangement.  ACI will configure and host a unique copy of its software to meet the needs of each customer, offering greater control than traditional outsourcing and multi-tenant arrangements while freeing clients from the job of staffing and managing their own systems infrastructure. 

(Omaha, Neb. – 20 February 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced the next generation of the company’s industry leading enterprise banking product.  Version 7.3j of ACI Enterprise Banker™ marks the product’s migration to an all Java solution, which serves the needs of businesses and consumers from one product.  To date, more than 20 banks have committed to version 7.3j, and three banks have committed to moving online consumer banking clients to Enterprise Banker, in addition to all their business clients.  The name of the product was recently changed from Web Cash Manager to Enterprise Banker to reflect the expanded markets it is serving. 

(Omaha, Neb. – 20 February 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced ACI Enterprise Enrollments™, a customizable online banking enrollment solution featuring a stand-alone online banking enrollment engine designed to consolidate business and retail enrollment functionality in one product. 

 (Omaha, Neb. – 15 February 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced that the company’s BASE24-eps™ payments solution is helping to drive the IBM SmartBank Showcase running at the IBM Executive Briefing Center in Montpellier, France, and Poughkeepsie, New York.  BASE24-eps (formerly BASE24-es®) serves as the core payments application of the SmartBank architecture, providing end-to-end transaction processing.  The virtual showcase simulates a live banking payments operating environment and demonstrates the scalability, security and flexibility of BASE24-eps on the IBM System z® platform.

 (SAN FRANCISCO, Calif. - RSA Conference – 6 February, 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of software for electronic payment systems, today announced 18 financial institutions are deploying ACI Enterprise Banker™ software with enhanced multifactor authentication features to combat increasingly sophisticated online banking threats.  ACI is the first enterprise software vendor to launch live customers on the RSA Go IDSM authentication service.  Additionally, ACI announced that 14 banks are deploying the RSA Adaptive Authentication for Web risk-based authentication technology at application logon, and several of the company’s bank customers will be implementing the Enterprise Banker solution with integrated multi-part credentials from TriCipher. 

(Omaha, Neb. – 24 January 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of enterprise payments solutions, today announced the general availability of Release 4.9 of its smart card management solution.  The new version of ACI Smart Chip Manager™ now features enhanced support for in-branch issuance, accompanied by new card inventory management support to give issuers control over distributed card issuance.  Other important enhancements include Payments Card Industry (PCI) compliance and support for Saudi Payment Network (SPAN2) cards.  The additional functionality increases the value, security and performance of issuers’ smart card management.

(Watford, England. –4 January 2007) – ACI Worldwide (NASDAQ: TSAI), a leading international provider of enterprise payments solutions, today announced that Nigeria Inter-Bank Settlement System Plc (NIBSS) selected BASE24-es® software from ACI to drive the Nigeria Central Switch (NCS).  The leading inter-bank payment and settlement company in Nigeria, NIBSS will implement BASE24-es to provide interconnectivity and interoperability between electronic funds transfer (EFT) switches in the country.  The platform will also support a seamless integration of the Nigeria retail payment system with the West African Monetary Zone retail payment platform.  NIBSS also licensed ACI Proactive Risk ManagerTM to provide a fraud monitoring service to member banks.