It's not a stupid question. When setting these up, you have four layers to fall back on: 1. Any other keys you added to the account (like a coworker's) 2. TOT

It's not a stupid question. When setting these up, you have four layers to fall back on: 1. Any other keys you added to the account (like a coworker's) 2. TOTP app like Google Authenticator 3. Printed one-time backup codes 4. Onerous account recovery process through support.