Target is extending a 10-percent discount to customers who shop in its stores this weekend, a day after the retail giant said data connected to about 40 million credit and debit card accounts was stolen over the Thanksgiving weekend.

Target chief executive Gregg Steinhafel called the breach "a crime against Target, our team members and, most importantly, our guests.” 

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“We’re in this together, and in that spirit, we are extending a 10-percent discount – the same amount our team members receive – to guests who shop in U.S. stores on Dec. 21 and 22,” Steinhafel said.

The theft is the second-largest credit card breach in U.S. history, exceeded only by a scam that began in 2005 involving retailer TJX Cos. That incident affected at least 45.7 million card users.

“We understand it’s been difficult for some guests to reach us via our website and call center,” Steinhafel said.

“We apologize and want you to understand that we are experiencing unprecedented call volume. Our Target teams are working continuously to build capacity and meet our guests’ needs.”