Target Reports Massive Data Breach

By NBC News

Published 12/19 2013 11:04AM

Updated 12/19 2013 11:11AM

Target has acknowledged that a security breach may have impacted 40 million customers who used credit or debit cards at their stores.

The announcement came one day after a security blogger reported the issue.

The accounts would have been impacted between November 27th and December 15th.

In a statement, the company says they have worked closely with law enforcement and that the problem is resolved.

Target says they alerted authorities immediately after they were made aware of the problem.

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