PC Mag UK: How to Protect Your Online Accounts With a Physical Security Key

You can also use the YubiKey as authentication to sign into a variety of websites, and not just those that support the FIDO2 standard. The number of websites that accept physical security keys is limited but always growing. Google supports it, though, so services such as Gmail, Google Calendar, Google Maps, Google Drive, Google Docs, and YouTube will all work with a security key.