People shop at a Target store during Black Friday sales in the Brooklyn borough of New York in this file photo taken November 29, 2013. The hackers who attacked Target Corp and compromised up to 40 ... more 
People shop at a Target store during Black Friday sales in the Brooklyn borough of New York in this file photo taken November 29, 2013. The hackers who attacked Target Corp and compromised up to 40 million credit cards and debit cards also managed to steal encrypted personal identification numbers (PINs), according to a senior payments executive familiar with the situation. REUTERS/Eric Thayer/Files (UNITED STATES - Tags: BUSINESS CRIME LAW) less 
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Reuters | Photo By ERIC THAYER / REUTERS
Tue, Dec 24, 2013 4:00 PM EST