Gemini
Crypto · gemini.com
Three second factors on offer: security key, approval in an app and text message. The strongest is a security key.
Recommended setup
Security key + app approval backup
A security key only answers the real site, so it can't be phished. Set up a second method too, so a lost key doesn't lock you out.
KeySecurity keyBest option
PushApproval in an appAuthy
SMSText messageSupported
Not offered: authenticator app, hardware token, phone call, email code.
Switch it on
General steps; menu names vary. Gemini's own guide has the exact screens.
- Sign in to Gemini and open your account's security settings. Look for two-step verification or two-factor authentication. Gemini's own guide shows the exact screens.
- Install Authy on your phone and sign in. Turn on sign-in approvals when it asks.
- Choose security key. Insert a USB key, or hold an NFC key to your phone, and touch it when it blinks. Register a spare key too.
- Save the backup codes. Keep them in your password manager or print them; they're your way back in if you lose your phone or key.