2FA using the TOTP method is mandatory for all users on GateHub.
All users that have not yet set up the 2FA, will receive a one-time, 6 digit code (OTP) over SMS to log in. The code will be sent to the phone number you have submitted to your account information.
After you enter the SMS code and login, you are navigated to the 2-factor authentication page, where you can set up 2FA on your device.