1P and Yubikey

Hello Mark_Sealey! 👋

Thanks for the question! Hardware security keys, like a YubiKey, are typically used for two-factor authentication. When you turn on two-factor authentication for your 1Password account you'll need to provide a one-time password from an authenticator app, or a hardware security key, when signing into 1Password on a new device or browser. It's an additional factor that provides protection in case an attacker has managed to get their hands on both your account password and Secret Key. We've published a blog article that discusses this further:

• Protecting Your 1Password Account with MFA

If you'd like to use your YubiKey as a second-factor for your 1Password account then you can follow the steps in this guide: Use your security key as a second factor for your 1Password account

-Dave