> “As far as we know, the only thing that definitely stops Bluetooth beacons is turning off your phone,” Bhaskar said.
At least for recent Apple devices, that's not true anymore (intentionally, as it is used to support "Find my iPhone" even with a dead battery or on a phone that's been switched off):
At least for recent Apple devices, that's not true anymore (intentionally, as it is used to support "Find my iPhone" even with a dead battery or on a phone that's been switched off):
https://arxiv.org/abs/2205.06114