Over 1.5 million Visa, MasterCard credit card numbers stolen?

A hacker break-in at credit and debit card processor Global Payments Inc. dates back to at least early June 2011, Visa and MasterCard warned in updated alerts sent to card-issuing banks in the past week. The disclosures offer the first additional details about the length of the breach since Global Payments acknowledged the incident on March 30, 2012.