The chairman of the House Committee on Homeland Security has accused China of engaging in a data breach that targeted four million US federal employees.
“All the threat indicators point to the fact that it is China, perhaps nation-state sponsored, because of the way it was done,” Rep. Michael McCaul said on Sunday.
“In my judgment this was an attack by China against the United States government,” he told CBS News. “This is the most significant data breach in US history.”
Last week, American officials said hackers had broken into the computer system of the Office of Personnel Management.
Hackers gained access to the data of some 2.7 million current government workers and about 2 million retired workers.
US federal officials claimed China was behind the massive hack.