National Security Agency

The Chinese government systematically dismantled C.I.A. spying operations in the country starting in 2010, killing or imprisoning more than a dozen sources over two years and crippling intelligence gathering there for years afterward.

He also asserted that he was able to protect the documents from China’s spies because he was familiar with that nation’s intelligence abilities, saying that as an N.S.A. contractor he had taught a course on Chinese...

Media in China see further embarrassment for the United States after whistleblower Edward Snowden gets temporary asylum in Russia.

For the first time, Snowden has admitted he sought a position at Booz Allen Hamilton so he could collect proof about the US National Security Agency’s secret surveillance programmes ahead of planned leaks to the media. “My position with...

The decision by a former National Security Agency contractor to divulge classified data about the U.S. government’s surveillance of computers in mainland China and Hong Kong has complicated his legal position, but may also make China’s security...

Chinese Internet users – who for years have lived with well-founded paranoia over the possibility that someone the government could be monitoring their activities online — lauded the self-described whistleblower for the risks he has taken in...

According to a number of confidential sources, a highly secretive unit of the National Security Agency (NSA), called the Office of Tailored Access Operations (TAO), has successfully penetrated Chinese computer and telecommunications systems...

Experts warn that the electronic intrusions gave China access to advanced technology that could accelerate the development of its weapons systems and weaken the U.S. military advantage in a future conflict.