DCS and Postilion Announce Partnership

Postilion for Card Issuers integrates with DCS’ CardWizard® software to enable secure and convenient EMV instant card issuance

Englewood, Colorado, USA and London, United Kingdom – 10 February 2009 - Dynamic Card Solutions (DCS), the leading instant card issuance, PIN selection and PIN change provider for financial institutions, and Postilion, a leading provider of software solutions for self-service banking and payments and a division of S1 Corporation (NASDAQ: SONE), today announced a partnership to offer financial institutions a fully integrated solution for card management, instant issuance and PIN selection, by connecting DCS’ patented CardWizard® solutions with Postilion for Card Issuers.

Instant card issuance provides banks with improved service for new account holders and allows for the immediate replacement of lost or stolen cards for current customers. DCS’ CardWizard instant issue software fully personalizes the chip, encodes the magnetic stripe, and prints or embosses cardholder details on each card.  Postilion for Card Issuers provides complete life cycle management for an extensive range of card products with full support for EMV, including contactless, and PIN control. The integrated solution also enables customers to select their own PINs at the time of issue, which increases activation rates, allows for the immediate use of the card, and eliminates the costs of PIN mailers.

Fraud associated with the interception of cards in the mail is a known area of concern for issuers. The end-to-end solution from DCS and Postilion offers built-in security and removes the risk of sending cards and PINs through the mail. Instant issuance provides an attractive, low-cost alternative, particularly in countries where mail delivery services may be less reliable.

“We are pleased to be partnering with DCS in the Europe, Middle East and Africa regions to offer this innovative capability to our card issuer customers,” said Mark McMurtrie, marketing director, Postilion International. “Instant issuance is now both cost-effective and easy to implement thanks to advances in technology, and it makes an ideal complement to our product suite. This unique service, which includes immediate card replacement and the freedom for customers to choose their own card designs, can support card issuers with customer acquisition, retention and portfolio profitability.”

“Instant issuance eliminates the cost, risk and delay of centrally issuing cards,” said Spencer Clark, director of international markets for DCS. “By instantly issuing cards, the issuer simultaneously improves customer service, differentiates itself from the competition, and generates incremental revenue. Thanks to its many advantages over traditional card issuance, we have seen global demand for EMV instant issuance increase exponentially in the last year. Through our partnership with Postilion, we have introduced a fully integrated instant card issuance solution which can be quickly deployed and ultimately simplifies the steps to EMV migration and branch issuance. This partnership affirms our commitment to offering the most advanced EMV instant issuance, PIN selection and re-PIN systems available.”

About Dynamic Card Solutions

Founded in 1996 and a wholly owned subsidiary of Dynamic Solutions International, Dynamic Card Solutions (DCS) develops instant issuance and PIN selection solutions for banks, credit unions and retailers that issue EMV, contactless and magnetic stripe cards. DCS is the leading instant issuance provider for Visa® and MasterCard® debit cards. The company offers fully integrated solutions that allow financial institutions and retailers to quickly and securely issue debit, credit and ATM cards instantly at branch or store locations. Issuing cards instantly increases customer service, card sales and revenue, and eliminates current card issuance costs. DCS’ system includes a user-friendly administration component that provides full reporting, card inventory and more. All solutions utilize encryption and are compliant with recommended security procedures for instant issuance. For additional information, call +1 303.754.2000 or visit the Dynamic Card Solutions Web site at www.instantissuance.com.

About Postilion

Postilion, a division of S1 Corporation (NASDAQ: SONE), 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 500,000 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 www.postilion.com.

About S1 Corporation

S1 Corporation (NASDAQ: SONE) delivers customer interaction software for financial and payment services and offers unique solution sets for financial institutions, retailers, and processors under three brand names: Postilion, S1 Enterprise and FSB Solutions. Additional information about S1 solutions is available at www.s1.com, www.postilion.com, www.S1enterprise.com, and www.fsb-solutions.com.

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 www.s1.com or the SEC’s web site at www.sec.gov) 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.