A wireless data transfer protocol for interaction between devices. The standard describes a personal area network based on radio waves for the exchange of information at a range of no more than 10 meters. Bluetooth is widely used for communications between mobile gadgets, such as wireless headphones, headsets, keyboards, and mice.

Cybercriminals can hack a Bluetooth communication channel when two devices are being paired, and having discovered the unique ID of one of them, gain access to the device memory. Information security experts note that such attacks are difficult to carry out, since they depend on the intruder being in the immediate vicinity of the potential victim.