P.F. Chang’s China Bistro Inc. is investigating a potential data breach that may have exposed thousands of customers’ credit and debit card data. After contacting banks to determine commonly visited locations, a cybersecurity blogger reported that the data of customers who visited P.F. Chang’s between March 2014 and May 19, 2014, has been offered for sale on an underground Website known for selling data resulting from the Target breach in late 2013. While the source of the potential breach remains unknown, experts suggest that thieves planted malware onto the point-of-sale systems that employees use to run customer’s credit cards because similar malware was used to steal credit and debit card information from other retailers. See USA Today, June 11, 2014.