10M cards may be affected
(NEWSER) - MasterCard is investigating a feared security breach linked to a credit-card processor in the US, it says; Visa has reportedly launched a similar investigation. While the companies are mum about the extent of the problem, financial insiders tell Krebs on Security it's "massive," potentially involving 10 million cards. MasterCard says it has notified law enforcement as well as issuing banks about "certain MasterCard accounts that are potentially at risk," the Wall Street Journal reports. Visa is also notifying banks, according to Krebs. More»
