Cyber attack on US affected data of 21.5 mn people

Washington, A cyber-attack on the US government, allegedly by Chinese hackers, was more severe than initial reports, affecting "sensitive" information of millions of people, the Obama administration has said.

The Office of Personnel Management — victim of the attack that was exposed in June — reported on Thursday that "hackers" robbed personal data, including social security numbers and other information of 21.5 million people, according to Efe news agency.