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Postilion's Data Center Receives PCI DSS Compliance Certification
Jan 28, 2008 (10:01 AM EST)

NORCROSS, Ga. and LONDON, Jan. 28 /PRNewswire-FirstCall/ -- Postilion, a leading global provider of integrated solutions for self-service banking and payment processing and a division of S1 Corporation , today announced that the Postilion Data Center in Norcross, Georgia, has received certification of compliance with the Payment Card Industry Data Security Standard (PCI DSS). The PCI DSS, officially announced in January 2005, is a global standard promoted by the payment card associations to safeguard cardholder information.

The PCI DSS, a multi-faceted security standard, includes requirements for security management, policies, procedures, network architecture, software design, and other critical protective measures. Card associations maintain and enforce compliance programs for member organizations that store, process, or transmit cardholder data. This comprehensive standard is intended to help organizations, such as acquirers and processors, proactively protect customer account data and limit the ability to compromise payment systems.

Dean Jordaan, Postilion's Senior Vice President of Global Product Strategy, commented, "Not only have Postilion solutions been validated by Visa as compliant with payment application best practices (PABP), but we also host these solutions in a PCI DSS compliant data center. As the cost of running security compliant IT operations increases, our customers look to our hosted services to relieve a significant pain point in their businesses."

About Postilion

Postilion, a division of S1 Corporation , is a leading provider of integrated solutions for self-service banking and payment processing. Our offices, on five continents, serve over 1,500 customers in more than 50 countries. Postilion solutions drive self-service financial transactions and payments, including advanced transactions such as prepay, through Internet access points, ATMs, POS terminals, and phones. More than 100,000 ATMs and 380,000 POS terminals worldwide run on Postilion solutions. In the United States, over 1,250 credit unions and community financial institutions use Postilion solutions. Built on open systems, Postilion solutions provide consolidated management information, card management, 3DES and EMV enablement, and loyalty management. At the forefront of compliance with new regulations and security enhancements, such as the Payment Card Industry Data Security Standard (PCI DSS) and Visa's Payment Application Best Practices (PABP), Postilion can help customers achieve compliance with the latest data security standards developed by the payment card industry. More information is available at .

About S1 Corporation

S1 Corporation delivers customer interaction software for financial and payment services and offers unique solution sets for financial institutions, retailers, and processors. S1 employs over 1,400 people in operations throughout North America, Europe and Middle East, Africa, and Asia-Pacific regions. Worldwide, more than 3,000 customers use S1 software solutions, which are comprised of applications that address virtually every market segment and delivery channel. S1 partners with best-in-class organizations to provide flexible and extensible software solutions for its customers. Additional information about S1 solutions is available at , , , and .

Forward-Looking Statements

This press release contains forward-looking statements within the safe harbor provisions of the Private Securities Litigation Reform Act. These statements include statements with respect to our financial condition, results of operations and business. The words "believes," "expects," "may," "will," "should," "projects," "contemplates," "anticipates," "forecasts," "intends" or similar terminology identify forward-looking statements. These statements are based on our beliefs as well as assumptions made using information currently available to us. Because these statements reflect our current views concerning future events, they involve risks, uncertainties and assumptions. Therefore, actual results may differ significantly from the results discussed in the forward-looking statements. The risk factors included in our reports filed with the Securities and Exchange Commission (and available on our web site at or the SEC's web site at ) provide examples of risks, uncertainties and events that may cause our actual results to differ materially from the expectations we describe in our forward-looking statements. Except as provided by law, we undertake no obligation to update any forward-looking statement.

CONTACT: Eduan Swanepoel, +27 21 659 6000,,or Dean Jordan, +27 21 659 6000, , both ofPostilion

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