Larry M. Wortzel, the author of the US Army War College report, said: “The thing that should give us pause is that in many Chinese military manuals they identify the US as the country they are most likely to go to war with. They are moving very rapidly to master this new form of warfare.” The two PLA hackers produced a “virtual guidebook for electronic warfare and jamming” after studying dozens of US and Nato manuals on military tactics, according to the document.
The Pentagon logged more than 79,000 attempted intrusions in 2005. About 1,300 were successful, including the penetration of computers linked to the Army’s 101st and 82nd Airborne Divisions and the 4th Infantry Division. In August and September of that year Chinese hackers penetrated US State Department computers in several parts of the world. Hundreds of computers had to be replaced or taken offline for months. Chinese hackers also disrupted the US Naval War College’s network in November, forcing the college to shut down its computer systems for several weeks. The Pentagon uses more than 5 million computers on 100,000 networks in 65 countries.