Even after arts and crafts merchant Michael's Stores Inc. announced it was a victim of a data security breach in January, Michaels and its Aaron Brothers subsidiary's store customer's credit card data ...

Forty million credit cards were exposed to potential fraud in a security breach at a payment-card processor.

A security breach of customer information at a credit card-processing company has exposed as many as 40 million cardholders of all brands to potential fraud, MasterCard International Inc. (search ...

A data breach at credit card company Capital One earlier in July exposed the personal information of 100 million customers and those who had applied for the company's credit cards.

Security vulnerability lets intruder enter network and nab info on millions of credit card holders.

EAGLE COUNTY ” A security breach at the nation’s largest credit card processing company last year could put locals at risk for theft and fraud. Heartland Payment Systems announced Jan. 20 ” ...

The game seller has confirmed that there has been a major security breach, resulting in many online customers having their credit card details stolen.

Attorney General Eric H. Holder Jr. told lawmakers Wednesday that the Justice Department will find the hackers who lifted 40 million debit and credit card numbers from Target customers.

SAN FRANCISCO — Home Depot said Thursday that the account information of 56 million credit-card holders was compromised in what is the largest known breach of a retail company’s computer network.

The Target security breach may just be the tip of the iceberg. It now appears it's also affecting those who collect Social Security.