New Bluetooth hack can unlock your Tesla-and all kinds of other devices
When you use your phone to unlock a Tesla, the device and the car use Bluetooth signals to measure their proximity to each other. Move close to the car with the phone in hand, and the door automatically unlocks. Move away, and it locks.
https://arstechnica.com/information-technology/2022/05/new-bluetooth-hack-can-unlock-your-tesla-and-all-kinds-of-other-devices/