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Cal.com

Communication · cal.com

One second factor on offer: authenticator app.

Recommended setup

Authenticator app

Codes made on your phone, offline. Much safer than a text message, which can be stolen with a SIM swap.

AppAuthenticator appOnly option

Not offered: security key, approval in an app, hardware token, text message, phone call, email code.

Switch it on

General steps; menu names vary. Cal.com's own guide has the exact screens.

  1. Sign in to Cal.com and open your account's security settings. Look for two-step verification or two-factor authentication. Cal.com's help pages show the exact screens.
  2. Choose authenticator app. A QR code appears.
  3. Open your authenticator app, add an account and scan the QR code. Type the 6-digit code it shows to confirm.
  4. 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.