Insert and tap your security key (or use your platform passkey) when prompted.
Open your authenticator app (Google Authenticator, Microsoft Authenticator, or similar) and enter the current 6-digit code.
This account has no second factor on file yet. Choose how you'd like to confirm it's you when signing in.
This account has no security key on file yet. Register one now (a Yubikey/FIDO2 hardware key, or your device's built-in passkey) to finish signing in.
Scan this QR code with Google Authenticator, Microsoft Authenticator, or a similar app, then enter the 6-digit code it shows.