At least according to US investigators, China has stolen a march over the US when it comes to cyber spying. Many experts believe that China has stepped up its spying and the two countries have been known to spy on each other’s activities.

Though it is difficult to ascertain the true extent of America’s own capabilities and activities in this arena, a series of secret diplomatic cables as well as interviews with experts suggest that when it comes to cyber-espionage, China has leaped ahead of the United States.

US investigators said that China has stolen terabytes of sensitive data – from usernames and passwords of State Department computers to designs of multi-billion dollar weapons systems. And Chinese hackers show no signs of letting up. “The attacks coming out of China are not only continuing, they are accelerating,” said Alan Paller, Director of Research at information security training group, SANS Institute in Washington, DC.