You can activate two-factor authentication for your account by clicking on the login welcome tab then choose “Security settings” and you will be redirected to security settings page as you see in the following screenshot:
Follow setup instructions:
You will need to install Google Authenticator on your smartphone through (Google Play, AppStore OR Windows phone store) to scan the QR code
And you are done, now you can use the app to generate two factor code and login in securely your account .
- Don't forget saving the backup code in a safe place so you could use it in case you lost your phone.