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TJX Case Shows Cost of Data Breaches for Banks

By Brian Orsak

A security breach at retailer TJX Cos. last year cost banks that reissued payment cards as much as $83 million, according to estimates by credit card company Visa USA. Credit card company officials say the breach exposed about 100 million credit and debit card numbers to hackers, according to court documents from a class-action lawsuit against Framingham, Mass.-based TJX that were released Friday. After disclosing that hackers had breached its databases, TJX estimated in March that as many as 45.7 million records had been exposed over several months. Driver's license and checking account numbers of customers who returned merchandise were...

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