After the password the console now asks for a code from your phone. Scan the QR code with a code app (Google Authenticator, Microsoft Authenticator, 1Password, Aegis) and type the six digits it shows.
Or enter the key by hand:
Each code opens the console once instead of the code from the app, if the phone is lost. Save them now somewhere safe: they are shown only this time.
Forgot the password? It can be reset only on the server itself, with the command from the guide.