North Dallas Bank & Trust Co. Chooses Postilion’s Single Platform to Deliver Self-Service Banking Solutions

Postilion Self-Service Banking enables multichannel integration and future extensibility

Norcross, Georgia – June 9, 2009 – Postilion, a division of S1 Corporation (NASDAQ: SONE) and a leading global provider of integrated solutions for self-service banking and payment processing, today announced that North Dallas Bank & Trust Co. has chosen Postilion to provide an integrated, multichannel solution supporting all of the bank’s self-service and EFT channels on a single platform.

A customer for more than ten years, North Dallas Bank has deployed Postilion Voice Banking and will upgrade its heritage solutions for retail Internet banking and business Internet banking. In addition, the bank will implement Postilion ATM driving and debit card issuance applications on the Postilion platform, enabling cross-channel integration and a single customer view.

“We are very excited to move to the new solutions and have already received positive feedback on the new look and functionality,” said Greg Niemeyer, executive vice president marketing and operations, North Dallas Bank. “As a community bank with a strong focus on the customer relationship, it is critical for our bank to directly manage those relationships consistently across multiple customer interaction points, regardless of whether that is at the ATM, via the Internet, or through voice banking. Our partnership with Postilion enables us to deliver the latest in technology from a single vendor and maintain the same hometown trust and service our customers have come to expect.”

Postilion’s Self-Service Banking solutions empower community banks and credit unions to deliver innovative customer touchpoint solutions that level the playing field with larger financial institutions. Postilion represents the next generation of integrated solutions for self-service banking, offering a comprehensive suite of tools. Financial institutions that initially license a single channel can leverage their original investment by enabling additional channel applications on a single platform. The multichannel-ready system ensures a consistent customer experience across all self-service channels, including ATM, card, business Internet banking, retail Internet banking, voice, and mobile.

“We are pleased to partner with North Dallas Bank to deploy a best-of-breed multichannel solution. As the demands on financial institutions for a more integrated self-service experience grow, Postilion is uniquely positioned to support our customers with deeper cross-channel integration and streamlined back-office operations,” said Pierre Naudé, President, Postilion Banking. “With these tools, community banks like North Dallas Bank are well positioned to deliver the right mix of personal attention and customer self-service.”

About North Dallas Bank & Trust
North Dallas Bank & Trust Co., established in 1961, has more than $1 billion in assets and is a locally owned bank with five locations in the Dallas area.

About Postilion
Postilion, a division of S1 Corporation (NASDAQ: SONE), is a leading global 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.