Update June 25: The National Archives and Records Administration now says the U.S. Computer Emergency Readiness Team has determined the indicators of compromise detected on agency workstations turned ...

First announced earlier this month after the hackers had infiltrated federal systems for more than a year, the breach of OPM was initially said to affect 4 million U.S. government employees, whose ...

Two major breaches last year of U.S. government databases holding personnel records and security-clearance files exposed sensitive information about at least 22.1 million people, including not only ...