From the control panel settings, you can enable two-factor authentication through:-
Click on your username in the control panel and select Settings
Click Security.
Click Enable Two-Factor Authentication.
Download a two-factor authentication app, we recommend Google Authenticator.
Scan the QR code with your two-factor authentication app. If you encounter a problem in scanning, you can use the manual entry and enter the code shown to you as in the image
The TOTP will be display in the two-factor authentication application. Enter 6-digit this code in the field and press Activate
After activate, you will be given a recovery code. Please be sure to save this code, without this redeem code
TrebleGo will not be able to recover your account.
When log in, you will be asked to provide the code displayed in your two-factor authentication app.