Always UV

Ensures that the authenticator will always perform user verification when creating or using a credential, even if it is not requested by the relying party. If this is not supported, the platform may not know it needs to prompt for a PIN, which will cause WebAuthn as a second factor flows to fail if it’s enabled.

Estimated Support About

36.36% + 54.55% = 90.91%

Notes

Always UV support is important for compliance with FIPS 140-3.

  • 1

    FIDO2 Support provided by Windows’ webauthn.dll.

  • 2

    AlwaysUV works for registration, but not authentication.

Resources

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Test it yourself

This feature was last tested on May 13, 2025.

If you want to test this feature in the same conditions as we did, you can get our test code and run a test by yourself. Make sure to follow our testing recommendations first.