There’s a Bluetooth security vulnerability story doing the rounds that, according to the security researchers:
…affects basically all devices that “speak Bluetooth”
This isn’t true. The vulnerability relates to Bluetooth BR/EDR, so called ‘Classic Bluetooth’, and not Bluetooth LE. It isn’t found in beacons or other devices communicating via Bluetooth LE. It also isn’t found in Bluetooth mesh.
Read about Beacons and the Bluetooth Mesh