Catalyst 2003 Speakers to Share Best Practices and Successes.

Business Editors

ATLANTA--(BUSINESS WIRE)--July 1, 2003

More Than 50 S1 Customers and Partners Scheduled to Speak; Conference to Highlight S1 One View Customer Excellence Award Winners

S1 Corporation (Nasdaq: SONE) today announced that more than 50 S1 customers, industry consultants and partners will speak at Catalyst 2003, the Company's fourth annual users conference. Highlighted speakers will include the winners of the first annual S1 One View Customer Excellence Awards. Catalyst will be held August 25-28, 2003 at the JW Marriott Grande Lakes Resort, in Orlando. Each year hundreds of representatives from financial institutions of all sizes from around the world gather at Catalyst to gain insight into leveraging their technology investments to generate more revenue, reduce operating costs and enhance customer retention. More than 500 financial institution representatives are expected to attend this year's conference.

Based on input from a panel of industry experts, S1 will announce the winners of the One View Customer Excellence Awards developed to recognize S1 customers' innovative use of technology to achieve real business results including increasing revenues, customer loyalty and operational excellence. The award-winning financial institutions will have an opportunity to share best practices and lessons learned.

In addition, more than 50 S1 customers, industry consultants and partners will be speaking at Catalyst 2003, including representatives from Bank One, FleetBoston Financial, Bank of America, Wells Fargo, The Landrum Company, STAR Financial, Grand Rapids State Bank, Commerce Bank and Trust, Murphy and Co., Reynolds, Bone & Griesbeck PLC and the Federal Reserve.

This year's conference features more than 80 educational sessions and channel-specific tracks ranging from industry trends, CRM solutions and branch banking, to retail banking, business banking and trade finance to address the specific challenges of a diverse and growing customer base. The conference is also approved for up to 13 CTP and CCM recertification credits by the Association for Financial Professionals, a key benefit for customers involved in wholesale banking.

A dedicated sponsor track will give attendees the opportunity to learn more about the best-of-breed technology solutions supporting the S1 Enterprise. An expanded line up of sponsors will be participating in this year's Catalyst event. The diamond sponsor is IBM, S1's global alliance partner in delivering on-demand online banking solutions for financial services providers. Other sponsors include Actuate, Banker Systems, BearingPoint, CheckFree, Intuit, NSD Security and vMoksha. Additional exhibitors include ACOM, AddMaster, ARCA.TECH, Aurum Technology, BAI, Bankware, Bisys, Cisco, Computer Associates, Deluxe, Metavante, NSS, Paul Murphy & Co., PC4 Online, Pinnacor, Princeton eCom, Priva Technologies and Viecore.

S1 has also invited Roger Dow, senior vice president of Marriott International to share "The Secret to Superior Customer Service." With 30 years of hands-on experience, Dow is co-author of "Turned On: Eight Vital Insights to Energize Your People, Customers, and Profits." In a dynamic and entertaining presentation, he will illustrate how to ignite customer enthusiasm, in person, by telephone or over the Internet. Dow proves that any enterprise can cultivate and retain its values, through superior customer service.

"S1 looks forward to hosting Catalyst each year because it gives us the opportunity to bring leaders from across the industry together to share experiences, lessons learned and best practices," said Jaime Ellertson, chief executive officer for S1 Corporation. "The conference is an ideal way to show our appreciation for our customers' business and to help further their success in this dynamic environment."

S1 customers can register online at www.s1catalyst.com. There is an early bird discount for registrations received before July 11, 2003. To receive information on this key industry event, please send an email to [e-mail].

About S1 Corporation

S1 (Nasdaq: SONE) is a leading global provider to approximately 4,000 banks, credit unions and insurance providers of enterprise software solutions that create one view of customers across multiple channels, applications and segments. S1's Enterprise software solutions uniquely combine customer interaction and financial transaction capabilities, resulting in a more compelling experience for the customers and a more profitable relationship for the financial institution. 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.