A fleet administrator notices that Android devices running Android 10+ report different Bluetooth MAC addresses every time they scan for nearby devices. What is the purpose of Bluetooth MAC address randomization?
- A.A. To increase the speed of Bluetooth device discovery by rotating addresses
- B.D. To enable multiple Bluetooth profiles to operate simultaneously on a single chipset
- C.C. To comply with carrier regulations requiring unique identifiers per connection
- D.B. To prevent passive tracking of users' physical locations by observers scanning for stable Bluetooth MAC addresses
Why D is correct
Bluetooth MAC randomization changes the locally administered MAC address used during scanning and advertising so that passive observers (retail tracking beacons, surveillance infrastructure) cannot correlate a specific device's movements over time by tracking its stable hardware MAC address. The feature does not affect discovery speed, is not a carrier regulation, and is unrelated to multi-profile Bluetooth operation.
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