Last Watchdog: Secrecy shrouds breach of possibly a third payment cards processor

Visa and MasterCard are being circumspect about a new round of warnings they’ve issued regarding stolen credit and debit card numbers circulating in the criminal world — data possibly stolen from another breach of a payment card processor. This follows major data thefts fromHeartland Payment Sytems and RBS WorldPay, for which precious few details have officially been made public.