According to Windows Latest, Microsoft has quietly issued a warning to users that its new security update, 10 June 2019, will, by design, break certain Bluetooth devices if they fail to meet the requirements.
Microsoft states it will push this update to all versions of Windows 10 as well as Windows 8.1.
"You may experience issues pairing, connecting or using certain Bluetooth devices after installing security updates released June 11, 2019. These security updates address a security vulnerability by intentionally preventing connections from Windows to unsecure Bluetooth devices. Any device using well-known keys to encrypt connections may be affected, including certain security fobs." the report read.
What these well-known keys are is not actually mentioned by Microsoft. The company has had a history of updates breaking certain devices and give any sort of heads up to users before they get affected. The current update sees user risk finding their bluetooth devices, like headphones, mics or mice not working.
In this particular case, Microsoft is deliberately breaking some Bluetooth devices to fix a security vulnerability. The June 2019 update includes a change that is designed to prevent connections from Windows to unsecure Bluetooth devices.
It’s worth noting that only a small number of devices are affected and you are recommended to install updates for your Bluetooth device if you experience any connection issues.