A customer signs his credit-card receipt at a Target store ...
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AP FILE PHOTO, JAN. 18, 2008 | published: December 23, 2013

A customer signs his credit-card receipt at a Target store in Tallahassee, Fla. The U.S. is the juiciest target for hackers hunting credit-card information, and experts say incidents such as the recent data theft at Target’s stores will get worse before they get better.