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Setting up Yubikey as FIDO WebAuthn

Bitwarden supports using Yubikey as FIDO WebAuthn.

Login to your Bitwarden web account, and go to Account Settings.

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Navigate to Security -> Two-step login. Select FIDO2-WebAuthn.

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Enter your master password to continue.

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Give a name for your security key, then click Read Key. Bitwarden supports having up to 5 different FIDO security keys.

As always, consider having backup hardware security keys for your important accounts such as Bitwarden, or enable alternative MFA method so you don't get lock out.

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Insert your Yubikey into your computer.

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Enter the PIN for the Yubikey, and then touch the Yubikey to continue.

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Click Save to save the Yubikey to the account.

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That's it! You can now use your Yubikey as your second factor when logging into Bitwarden.