Bush reported computer attacks on the Pentagon from Russia.

Guide Pentagon this week, President George W. Bush submitted a report on the powerful electronic attack on their computers, reported Los Angeles Times. Presumably, the source of the attack was on the territory of Russia, and its breadth suggests a serious threat to national security.
The Ministry did not name the amount of damage from the attack, but was told that the attack took place on computer networks Commander of U.S. Central Command, responsible for the campaign in Iraq and Afghanistan, and computers in combat zones. In addition, an intrusion in at least one top network.
U.S. military computers are regularly subjected to cyber-attacks, but this attack was particularly intense. According to the Pentagon, attackers used malicious program agent.btz, specifically designed to harm the defense networks.
About historically powerful cyber-attacks on Pentagon computers has been known for another week, but then it masshatab and possible source is not identified. To combat the spread of dangerous programs the U.S. military around the world banned the use of external data carriers.
In recent cyber attack is increasingly cited as a powerful threat to U.S. national security. In particular, we are talking about possible attacks by China and Russia.