Chinese military hacked into Pentagon

[sh15uya]

The Chinese military hacked into a Pentagon computer network in June in the most successful cyber attack on the US defence department, say American ­officials.

The Pentagon acknowledged shutting down part of a computer system serving the office of Robert Gates, defence secretary, but declined to say who it believed was behind the attack.

http://www.ft.com/cms/s/0/9dba9ba2-5a3b-11dc-9bcd-0000779fd2ac.html

[ytl]

2nd last paragraph of the article.

John Hamre, a Clinton-era deputy defence secretary involved with cyber security, said that while he had no knowledge of the June attack, criminal groups sometimes masked cyber attacks to make it appear they came from government computers in a particular country.