Google is recalling Bluetooth versions of its Titan Security Key after finding a vulnerability that allows attackers in close proximity to take control of the device. The vulnerability stems from a misconfigured pairing protocol in the Titan Security Keys Bluetooth pairing protocols. Google is sending out replacement keys to those affected (users can visit here to apply for the free replacement keys). Google stressed that It is much safer to use the affected key instead of no key at all. Security keys are the strongest protection against phishing currently available
Source: https://threatpost.com/google-titan-security-key-recalled/144786/