OPM government data breach impacted 21.5 million

CNN: Government investigators now believe that the data theft from the Office of Personnel Management computer systems compromised sensitive personal information, including Social Security numbers, of roughly 21.5 million people from both inside and outside the government, the government announced Thursday.

Of these, hackers obtained information from the security clearance applications -- known as SF-86's - of 19.7 million people.

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