[ISN] Sources: Target Investigating Data Breach

http://krebsonsecurity.com/2013/12/sources-target-investigating-data-breach/ By Brian Krebs krebsonsecurity.com December 18, 2013 Nationwide retail giant Target is investigating a data breach potentially involving millions of customer credit and debit card records, multiple reliable sources tell KrebsOnSecurity. The sources said the breach appears to have begun on or around Black Friday 2013 — by far the busiest shopping day the year. According to sources at two different top 10 credit card issuers, the breach extends to nearly all Target locations nationwide, and involves the theft of data stored on the magnetic stripe of cards used at the stores. Minneapolis, Minn. based Target Brands Inc. has not responded to multiple requests for comment. Representatives from MasterCard and Visa also could not be immediately reached for comment. Both sources said the breach was initially thought to have extended from just after Thanksgiving 2013 to Dec. 6. But over the past few days, investigators have unearthed evidence that the breach extended at least an additional week — possibly as far as Dec. 15. According to sources, the breach affected an unknown number of Target customers who shopped at the company’s bricks-and-mortar stores during that timeframe. […]




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