Chinese military hacked into Pentagon network

Angela Merkel, Germany’s chancellor, raised reports of Chinese infiltration of German government computers with Wen Jiabao, China’s premier, in a visit to Beijing, after which the Chinese foreign ministry said the government opposed and forbade “any criminal acts undermining computer systems, including hacking”.

“We have explicit laws and regulations in this regard,” said Jiang Yu, from the ministry. “Hacking is a global issue and China is frequently a victim.”

George W. Bush, US president, is due to meet Hu Jintao, China’s president, on Thursday in Australia prior to the Apec summit.

The PLA regularly probes US military networks – and the Pentagon is widely assumed to scan Chinese networks – but US officials said the penetration in June raised concerns to a new level because of fears that China had shown it could disrupt systems at critical times.

“The PLA has demonstrated the ability to conduct attacks that disable our system...and the ability in a conflict situation to re-enter and disrupt on a very large scale,” said a former official, who said the PLA had penetrated the networks of US defence companies and think-tanks.

Hackers from numerous locations in China spent several months probing the Pentagon system before overcoming its defences, 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.