High-end shoppers may have snickered at Target'srecent data security breach, but now they may be dealing with acrisis of their own: Neiman Marcus says its own security breach mayhave compromised 1.1 million credit cards last year.

The retailer says on its websitethat Visa, Mastercard andDiscover have reported approximately 2,400 cards from Neiman Marcuscustomers that were used improperly. According to Neiman Marcus,this improper use likely comes from malicious software in thecompany's system that attempted to take credit card informationbetween July 16 and Oct. 30, 2013.

Neiman Marcus says that it is notifying customers of both itshigh-end retailer and Last Call, its clearance chain, who may havebeen affected. The company is offering a free year of creditmonitoring and identity-theft protection.

“We deeply regret and are very sorry that some of our customers'payment cards were used fraudulently after making purchases at ourstores…. We want you always to feel confident shopping at NeimanMarcus, and your trust in us is our absolute priority,” NeimanMarcus said in its online statement.

Social security numbers, birth dates and PIN numbers were notamong the information that was stolen, the company claims. Still,the company says, customers should check their credit cardstatements and report any fraudulent charges immediately so theycan be rectified.Tar