The personal information of 4 million U.S. federal employees was compromised in a breach affecting the Office of Personnel Management and Department of the Interior. Officials suspect China-based hackers are to blame, but investigations are ongoing. The breach might affect every government agency, the Department of Homeland Security said. The Office of PPPM conducts most of the background checks for these workers, but it conducts most background checks in the federal government. The Department of DHS said the breach may affect all government agencies.”]