Sources: Target Investigating Data Breach

[InfoSec News <alerts () infosecnews org>]

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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