According to the Post, it is now believed that thieves (possibly linked to New York City Dominican gangs) compromised some 10 million Mastercard and Visa credit cards processed through Global Payments, Inc. by using special client access codes belonging to a parking garage or taxi company in the city. Krebs on Security, which first broke the story yesterday, has a similar report, though there is one notable difference:
Sources at two different major financial institutions said the transactions that most of the cards they analyzed seem to have in common are that they were used in parking garages in and around the New York City area.
The Post maintains that the breached cards "were not necessarily used in past transactions at any New York business, taxi, garage or otherwise," but if you have a card that was, then it's probably worth scouring your monthly statements for any fraudulent activity. Consider it an opportunity to make use of one of the big banks' few customer-friendly policies: fraud coverage.