UK ministers have reportedly been barred from wearing the Apple Watch in sensitive meetings.

It may sound paranoid, but the next time you enter a highly confidential meeting, leave your smart watch behind.

They've recently been banned from wearing Apple Watches during cabinet meetings on fears that the devices could be hacked by Russian cyberspies, according to The Telegraph.

Mobile phones have already been prohibited from cabinet meetings, but the U.K. government has reportedly taken the extra step of also banning smart watches.

The risk is that such devices could be hijacked to secretly eavesdrop on users, especially those with top secret information.

Wearable computing devices, such as the Apple Watch -- with a built-in microphone, sensors, and wireless communication -- present a valuable attack surface for espionage," said Craig Young, a researcher with security firm Tripwire.

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