Target: Up to 40 million credit cards compromised
Posted December 20, 2013 by via Money.CNN.com
December 19, 2013: 4:41 PM ET
A breach of credit and debit card data at discount retailer Target may have affected as many as 40 million shoppers who went to the store in the three weeks after Thanksgiving, the retailer said Thursday.
Late Wednesday, the Secret Service, which is charged with safeguarding the nation's financial infrastructure and payment systems, confirmed it was investigating the breach.
The thieves reportedly gained access to data on the magnetic strips of shoppers' cards, potentially allowing them to produce counterfeit versions.