I wanted to know how practical this BT tracking vulnerability is but TFA is terrible so I read the linked 2022 paper describing the potential tracking vuln and

I wanted to know how practical this BT tracking vulnerability is but TFA is terrible so I read the linked 2022 paper describing the potential tracking vuln and found the answer. > "In summary, we find that physical layer tracking of BLE devices is indeed feasible, but it is only reliable under limited conditions, and for specific devices with extremely unique fingerprints, and when the target device has a relatively stable temperature." So, possibly able to track a BT fingerprint, once seen and positively identified by other means, in a given location on a given day but apparently not unique or reliable enough to consistently differentiate that device out of many devices in another place on another day. BTW, the physical layer traits which may be unique enough for tracking are "Carrier Frequency Offset and I/Q Offset".