The recent "Blueborne" Bluetooth vulnerability, which is thought to have put eight billion devices at risk.
A Bluetooth connection can leave computers, smartphones and other devices vulnerable to security breaches, so users should quickly install any updates - or turn the function off.
That's the advice of the German Federal Office for Information Security (BSI) in response to the recent "Blueborne" Bluetooth vulnerability, which is thought to have put 8 billion devices at risk.
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