The Purchase, N.Y., credit-card company said law enforcement has been notified of the matter and an “independent data security organization” is conducting an ongoing forensic review of the matter. The company is alerting card-issuing banks regarding “certain MasterCard accounts that are potentially at risk.”
“MasterCard’s own systems have not been compromised in any manner,” a company spokesman said.
The spokesman declined to say how many cards may have been compromised or how many banks it is notifying.
Representatives for Visa couldn’t immediately be reached for comment Friday morning.
Visa and MasterCard don’t lend or issue cards to consumers; rather, they process transactions for banks that issue their cards and those that handle transactions for merchants.
MasterCard said it will “continue to both monitor this event and take steps to safeguard account information.”
Cardholders who are concerned about their accounts should contact the banks that issued them their cards, the company said.”If you enjoy the content at iBankCoin, please follow us on Twitter