According to The Telegraph, British ministers have been barred from wearing Apple Watches during Cabinet meetings amid concerns over Russian hackers.
A number of cabinet ministers wore the smart watches, including Michael Gove, the former Justice Secretary.
However, under Theresa May ministers have been barred from wearing them for fear that they be used by hackers as listening devices.
Mobile phones have already been barred from the Cabinet because of similar concerns.
Russian hackers were previously reported to try to disrupt last year’s British general election, in what is thought to be the first known cyberattack on the British political system.
The group known as Fancy Bears planned to target every Whitehall server, including the Home Office, Foreign Office and Ministry of Defence, and every major TV broadcaster, including the BBC, Channel 4 and Sky, but was thwarted by GCHQ.