21.5 million affected by US government data breach
Hackers who breached US government databases stole personal information from background checks of 21.5 million people, following an investigation into the massive attack widely blamed on China.
An update from the government's Office of Personnel Management said those affected were 19.7 million who underwent a background investigation, and 1.8 million others, mostly spouses or cohabitants of applicants for government jobs.
The massive figure adds to the gravity of the breach, which prompted a series of hearings in Congress and widespread criticism of the state of US cyber-defences.
Officials said last month 4.2 million personnel records were breached in a separate attack affecting current, former and prospective federal employees.