The range of Bluetooth communications between mobile devices and other Bluetooth devices is restricted to less than 10 metres by using class 2 or class 3 Bluetooth devices.
Topic
Mobile device Bluetooth functionality
Applicable to
Official, Protected
History
Priority
should
Dec 2021
Removed
The recommendation to use at least Bluetooth version 2.1 devices has been amended to using devices that support Secure Connections functionality. This requires either Bluetooth version 4.1 devices (for Bluetooth Classic) or Bluetooth version 4.2 devices (for Bluetooth Low Energy). In addition, the recommendation against using class 1 Bluetooth devices has been removed due to providing only limited protection against Bluetooth attacks.
2015
Agencies should restrict the range of Bluetooth headsets to less than 10 metres by only usingclass 2 or class 3 devices.