"Specification-compatible" is doing a LOT of heavy lifting here. Sure, there are plenty of well-behaved companies making standards-compliant beacons, but there'

"Specification-compatible" is doing a LOT of heavy lifting here. Sure, there are plenty of well-behaved companies making standards-compliant beacons, but there's nothing preventing proprietary approaches. Even with RPA it should be possible to implement "unwanted tracking" alerts for BT devices showing any given profile in their advertising data.