Payment Processor Breach May Be Largest Ever

A data breach last year at Princeton, N.J., payment processor Heartland Payment Systems may have led to the theft of more than 100 million credit and debit card accounts, the company said today.

If accurate, such figures may make the Heartland incident one of the largest data breaches ever reported.

Robert Baldwin, Heartland’s president and chief financial officer, said the company, which processes payments for more than 250,000 businesses, began receiving fraudulent activity reports late last year from MasterCard and Visa on cards that had all been used at merchants which rely on Heartland to process payments. [WashPost]