MasterCard and Visa are alerting law enforcement agencies and card issuers such as banks and retailers that a major third-party card processor’s system has been breached and cardholders’ account information may be at risk of being compromised.
The Wall Street Journal identified the credit and debit card processor as Global Payments Inc.
According to the blog KrebsonSecurity.com, which first reported the data thefts, the breach is “massive” and could expose the account information of 10 million MasterCard and Visa customers.
Neither company would say how many cardholders, financial institutions or retailers are potentially affected by the breach.
KrebsonSecurity.com said the breach occurred between Jan. 21 and Feb. 25 and that the customer information obtained could be used to create counterfeit new credit cards.
[A]ffected banks are now starting to analyze transaction data on the compromised cards, in hopes of finding a common point of purchase. Sources at two