40 Million Credit Card Numbers Hacked
More than 40 million credit card numbers belonging to U.S. consumers were accessed by a computer hacker and are at risk of being used for fraud, MasterCard International Inc. said yesterday.
Hackers are at it again this time breaching CardSystems Solutions Inc computer system that is responsible for handling card transactions for some of the major credit card companies.
In the largest security breach of its kind, MasterCard officials said all credit card brands were affected, including 13.9 million cards bearing the MasterCard label. A spokeswoman for Visa USA Inc. confirmed that 22 million of its card numbers may have been breached, while Discover Financial Services Inc. said it did not yet know if its cards were affected.
