Privacy

Bluetooth Low Energy provides a unique feature that diminishes the ability to track an LE device by changing the Bluetooth device address frequently. This is an important privacy feature as it allows an advertiser to hide. These Bluetooth device addresses are temporary and are randomly generated that can only be recognized by bonded device. Whenever a device is bonded to another device for the first time, an identity key (IRK) is generated which is later used to generate a private address. This address must be resolvable by the other devices in order to keep the privacy.