To enable two-factor authentication, follow these steps:
- Go to Overview > Settings > Security
- Download and open any authenticator app (e.g., Google Authenticator).
- Add a new device by selecting the option to scan a QR code. Scan the QR code displayed on your other device.
- Enter the code from your email/SMS first, then enter the code from Google Authenticator (the code refreshes periodically).

Once enabled, to sign in, you’ll need to enter a six-digit code generated by the Authenticator app.