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The Detroit Free Press reports that the PF Chang's China Bistro chain "is investigating a report of a possible data breach involving credit and debit card data that may have been stolen from its restaurant locations nationwide.."

The Krebs on security website says that "on June 9, thousands of newly-stolen credit and debit cards went up for sale on … an underground store best known for selling tens of millions of cards stolen in the Target breach. Several banks contacted by KrebsOnSecurity said they acquired from this new batch multiple cards that were previously issued to customers, and found that all had been used at P.F. Chang’s locations between the beginning of March 2014 and May 19, 2014."

The security website says that "the most common way that thieves steal this type of card data is by hacking into cash registers at retail locations and 'planting malicious software that surreptitiously records mag stripe data when cards are swiped through the machines'."
KC's View:
This should be taken very seriously. Though, to be honest, I wish that someone would hack into PF Chang's systems and do something to improve the quality of its food.