OPM Hack: 21 Million People's Personal Information Stolen

The US federal agency said on Thursday sensitive information including social security numbers concerning more than 21 million people was stolen last month when the Office of Personnel Management (OPM) was hacked.OPM launched a “forensic investigation” after discovering that its internal database, housing background-check records of current, former and prospective federal employees and contractors, had been hacked in late May. The agency said anyone who has undergone a background check through OPM since 2000 “is highly likely” to be affected.