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.To prevent passive tracking of users' physical locations by observers scanning for stable Bluetooth MAC addresses
- B.To accelerate device discovery by rotating the advertised address between successive scan windows on the Bluetooth radio
- C.To satisfy carrier regulations that require a distinct hardware identifier for each connection a handset opens over the radio interface in regulated markets
- D.To let several Bluetooth profiles run at the same time on one radio chipset
Why A 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.
Know someone studying for Mobile Security Fundamentals? Send them this one.