Chinese state-sponsored hacking is at record levels, western experts say, accusing Beijing of engaging in a form of low-level warfare that is escalating despite US, British and other political efforts to bring it to a halt.
There are accusations too that the clandestine activity, which has a focus on stealing intellectual property, has become more overt and more reckless, although Beijing consistently denies sponsoring hacking and accuses critics of hypocrisy.