In June 2015, the US Office of Personnel Management (OPM) announced that it had been the target of a data breach targeting the records of as many as four million people. The final estimate of the number of people impacted is 22.1 million. This includes records of people who had undergone background checks, as well as their friends and family, many of whom were not government employees. It has been described by federal officials as among the largest breaches of government data in the history o
