Vulnerabilities in Bluetooth Low Energy can open the door to global device tracking for Windows 10, iOS and MacOS devices that incorporate it, researchers say. Identifying tokens and random addresses, meant to create anonymity, do not change in sync on some devices opening an attack vector. The researchers tested Apple and Microsoft computers and iPhones, and found conflicting success in their proof-of-concept work, they said. Any device is vulnerable to the carry-over algorithm if it does not change all of its identifying tokens in sync with the advertising address.
Source: https://threatpost.com/bluetooth-flaws-global-tracking-apple-windows/146517/