How to use Apple ID security keys on your Mac or MacBook

For those looking to beef up their security, a physical Apple ID Security Key is perfect for keeping any unwanted eyes of your Mac/MacBook's files.
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I tried passkey authentication using the Google Titan Security Key, which can store up to ...

A version of Google's physical key for two-step authentication, ' Titan Security Key,' now supports ' passkey,' which allows you to safely sign in to your account using only biometric authentication ...