For Immediate Release...September, 2002...Philadelphia, PA

Diginexus today announced that they have helped guide S1 Corporation in their design, planning and implementation of a two way OFX server. Diginexus provided specific OFX detail in the most difficult areas of the OFX specification, recurring payments and synchronization. In addition, Diginexus’ experience with the certification process has aided S1 in understanding what steps will be necessary for a successful Intuit certification test.

“S1 is a premier player in the banking industry. We are very pleased that they decided to use our expertise to build a core part of their company, the two way OFX server,” said Jeff Springer, EVP of Professional Services at Diginexus. “We were able to augment S1’s knowledge to ensure a successful certification. They had a full development team in place, but did not have the OFX experience necessary to ensure the right design for understanding and implementing their OFX server.”

About Diginexus
A Philadelphia-based software engineering firm, Diginexus has built an impressive team of the best and the brightest in the industry. Leveraging that team, Diginexus delivers success by focusing on the client's business needs. We partner with our clients to create the right user-friendly, personalized tool to fit the client's requirements while ensuring that critical information is delivered in a secure and timely manner. Clients in many industries have benefited from an excellent return on their investment by leveraging Diginexus' services. The company portfolio includes military and defense, financial services, healthcare services, pharma-biotech services, manufacturing process and a variety of other business-to-business, business-to-consumer, and government services.

The Diginexus client list encompasses a diversity of projects, including U.S. Navy, Department of Defense, E*Trade Bank, Outercurve Technologies, St. Barnabas Healthcare System (NJ), Temple University Healthcare, Johnson & Johnson, Wyeth-Ayerst, Trans-Atlantic Renal Council and the College Board, among others.

The company's core competencies include strategic technology consulting, process engineering, software engineering and software development. Diginexus leverages traditional and emerging standards-based software and communications architectures to enable its clients to create increased production efficiency, worker productivity, and utility for their stakeholders.

For additional information call Diginexus at 215-545-6420 or visit its website www.Diginexus.com

About S1
S1 (Nasdaq: SONE) is a leading global provider to more than 3,800 banks, credit unions, insurance providers, and investment firms of enterprise software solutions that turn customer interactions into profits. S1's Enterprise software solutions deliver a transactionable, customer-centric view across all delivery channels, 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.