UPDATE 4-Security breach hits U.S. card processors, banks

March 30 (Reuters) - The U.S. Secret Service is
investigating a major cyber intrusion at an Atlanta-based
payment processor that could expose millions of Ma sterCard,
Visa, American Express and Discover cardholders to fraudulent
charges.

Source: http://www.reuters.com/article/2012/03/31/mastercard-breach-idUSL2E8EV00620120331?feedType=RSS&feedName=vcMedia&virtualBrandChannel=10109

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