Chinese military hacked into a Pentagon computer network in June in the most successful cyber attack on the US defense department. The Pentagon acknowledged shutting down part of a computer system serving the office of Robert Gates, defense secretary, but declined to say who it believed was behind the attack. One senior US official said the Pentagon had pinpointed the exact origins of the attack. Another person familiar with the event said there was a “very high level of confidence…trending towards total certainty” that the PLA was responsible. Hackers from numerous locations in China spent several months probing the Pentagon system before overcoming its defenses, according to people familiar with the matter.
The Pentagon took down the network for more than a week while the attacks continued, and is to conduct a comprehensive diagnosis. “These are multiple wake-up calls stirring us to levels of more aggressive vigilance,” said Richard Lawless, the Pentagon’s top Asia official at the time of the attacks. The Pentagon is still investigating how much data was downloaded, but one person with knowledge of the attack said most of the information was probably “unclassified”. He said the event had forced officials to reconsider the kind of information they send over unsecured e-mail systems.
Source: Financial Times
