Google's Fast Pair protocol allows Bluetooth devices like headphones to quickly and automatically pair with your phone or laptop. Unfortunately, a group of security researchers has now shared serious security concerns in a newly released paper revealing a major flaw with Fast Pair.
Researchers at Belgium's KU Leuven University released their findings about the flaw (tracked as CVE-2025-36911 dubbed WhisperPair), which affects hundreds of millions of wireless headphones, earbuds and speakers from 15 different manufacturers across 17 different devices that support the Fast Pair feature. This includes the Sony WH-1000XM6, SoundCore Liberty 4 NC and Jabra Elite 8 Active, among other products.
