Bluetooth technology turned out to be potentially dangerous for users The research was published on the website of the University of California at San Diego (USA).
Experts talked about Bluetooth Low Energy (BLE) technology, which, due to reduced power consumption, allows the user's smartphone to interact with various accessories. According to experts, BLE consumes negligible amount of energy, so it can work constantly.
In the course of the study, scientists abandoned attempts to break the encryption of the wireless protocol, instead they focused on identifying the unique features of the broadcast radio signal. It turned out that for a more stable contact, all wireless sensors have a unique identifier. Theoretically, you can use it to calculate a specific user.
It turned out that the false negative indicator of the BLE signal was about zero percent. This means that almost always – with the exception of a few cases – the Bluetooth-connected accessory has been recognized correctly. According to experts, the technology has an unrecoverable vulnerability, but to protect against hacking, you just need to turn off Bluetooth on your phone.
In June, Avast Senior Software Engineer for Digital Security Vojtech Boček said that always-on Bluetooth the module can lead to hacking of the smartphone. The risk can be minimized by turning off the interface when you don't need it.