S1 and Other Market Leaders to Address Financial Institutions at Catalyst 2005; IBM and CheckFree Are Among the Leading Companies Sponsoring S1's Annual Customer Conference

Business Wire, Sept 9, 2005

ATLANTA -- S1 Corporation (Nasdaq: SONE), a leading global provider of integrated front-office applications for financial institutions, will be kicking off the company's sixth annual customer conference next week along with more than 45 sponsoring companies. Catalyst 2005 will be held Sept. 12-15 at the JW Marriott Starr Pass Resort & Spa in Tucson, Arizona. Representatives from hundreds of financial institutions of all sizes from around the world will gather at Catalyst to gain greater insight into industry issues, technology trends, and innovative solutions from S1 and other market-leading companies.

This year's Platinum sponsor, IBM, will lead an interactive discussion on "Banking on the Branch" during the Market Leadership Track and will sponsor the conference's welcome reception. S1 and IBM have been strategic business partners since 2000. The companies jointly sell and implement S1 Enterprise solutions with IBM's world-class technology and services to financial services providers worldwide.

As a Gold sponsor of the event, CheckFree will be speaking on "How to Sell, Measure and Improve Your EBP Solution," as well as sponsoring the Customer Appreciation Event at the conference. CheckFree has had a longstanding alliance with S1 in the electronic bill payment and presentment space.

Bronze sponsors of Catalyst that also have alliances with S1 include: Bankers Systems, Inc., Stratus Technologies, Yodlee, and SunGard Availability Services. Other bronze sponsors include RSA Security and Strunk & Associates, L.P.

In addition to helping to sponsor S1's annual customer conference, many companies will present at sessions that will give attendees the opportunity to gain insights into industry issues, best practices, and best-of-breed technology solutions. A few of the sponsor presentations include:

--"How to Sell, Measure and Improve Your EBP Solution," presented by Kim Sheppard, group executive, client development organization at CheckFree Corp.;

--"eBusiness: Compliance and the Banking Industry," presented by Roger Gudobba, senior principal at VMP Mortgage Solutions, Inc., a Bankers Systems company;

--"Aggregation-Powered PFM," presented by Sheilla Smith, regional sales manager at Yodlee;

--"The Banking Ecosystem - Aligning IT and Business Goals," presented by Jim Figler, director of solution services at Stratus Technologies;

--"How Leading Banks Increase Online Bill Pay Adoption," presented by Bill Whitley, president & co-founder of MindBlazer;

--"Security/Enterprise Vulnerabilities and Breaches," presented by Richard Rees, information security subject matter expert at SunGard Availability Services;

--"The Value of Check 21 in the Branch," a joint presentation with Drew Lamparello, director of product management, branch solutions at S1 and Michael Hackey, executive vice president for business development at Alogent.

This year's conference will also feature an Expo Hall to give attendees the opportunity to interact with key sponsors as they share demos of the latest, best-of-breed solutions, and information on industry insights and best practices.

To receive information on this premier industry event, please send an e-mail to info@s1catalyst.com.

About S1 Corporation

S1 Corporation is a leading global provider of integrated front-office applications for more than 4,000 banks and insurance providers around the world. Comprised of applications that address virtually every market segment and delivery channel, S1 solutions help integrate and optimize an institution's entire front office, resulting in increased operational efficiencies, revenue opportunities and overall customer satisfaction. S1 is the only provider with the proven experience, breadth of products and financial strength to empower financial services companies' enterprise strategies. Additional information about S1 is available at www.s1.com.