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Glancy Binkow & Goldberg LLP Announces Investigation of S1 Corporation

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^{Published in Science and Technology on Tuesday, July 26th 2011 at 17:20 GMT by Market Wire}  

LOS ANGELES--([ BUSINESS WIRE ])--Glancy Binkow & Goldberg LLP announces that it is investigating potential claims against the Board of Directors of S1 Corporation (aS1a or the aCompanya) (NASDAQ:SONE) related to the proposed acquisition of the Company by ACI Worldwide, Inc. in a transaction where S1 shareholders will receive $9.50 per share of S1 stock.

The investigation concerns whether the Board of Directors of S1 breached their fiduciary duties to stockholders by failing to adequately shop the Company before agreeing to enter into the proposed transaction, and whether the Company has disclosed all material information to shareholders about the transaction. The Company has seen substantial recent growth. Further, at least one analyst has set a target price for the Companya™s stock at $13.00.

If you are a shareholder of S1, if you have information or would like to learn more about these claims, or if you wish to discuss these matters or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Louis Boyarsky, Esquire, Glancy Binkow & Goldberg LLP, 1801 Avenue of the Stars, Suite 311, Los Angeles, CA 90067, by telephone at (310) 201-9150 or Toll Free at (888) 773-9224 or by email to [ shareholders@glancylaw.com ].