Passkeys
Superheat Cloud does not support passkeys yet. You cannot register one, and you cannot use one to sign in.
To protect your account today, enroll an authenticator app. It is the only second factor the console accepts.
What the console shows
Settings → Passkeys shows a short description and the line "Passkeys aren’t enabled for this workspace yet." The card has no Add passkey button.
The sign-in screen never offers a passkey either. After your email code, the second-factor step asks only for the six-digit code from your authenticator app.
What a passkey is
A passkey lets a device answer the second-factor prompt with what already unlocks it: Touch ID, Face ID, Windows Hello, or a hardware security key. The device keeps a private key, and signing in proves you hold it without sending anything reusable.
The console is built to use a passkey as a second factor, next to the authenticator-app code, after the email code. The feature is switched off on the service. This page will describe how to register and use a passkey once it is switched on.
Until passkeys are available, a second authenticator app is the only backup for a lost phone. See Recovery.