Looks like the original story is correct. Security Clearance background investigations hacked ("exfilterated"?) at OPM.

http://news.yahoo.com/union-says-fed...-politics.html
In a statement, the White House said that on June 8, investigators concluded there was "a high degree of confidence that ... systems containing information related to the background investigations of current, former and prospective federal government employees, and those for whom a federal background investigation was conducted, may have been exfiltrated."