The Obama administration’s diplomatic point man in the fight against Islamic State (IS) said the extremists have been losing control over territory and that “this perverse caliphate is shrinking”.

The United States has brought cyber-espionage charges against five Chinese military officials accused of hacking into American companies to gain trade secrets.

America’s National Security Agency has implanted secret surveillance software in nearly 100,000 computers around the world — but not in the US — allowing agents to spy on the machines, it is claimed.

US cyber-experts hacked al Qaida propaganda online in Yemen, changing ads that bragged about killing Americans into ones that showed the death toll of the terror group’s attacks against Yemenis, Hillary Clinton said.