To enable the Two-Factor Authentication please go to ‘My profile’ and use the slider ‘Enable two-factor authentication’:
To install the Google Authenticator application on your mobile phone, you need to select your way for uploading:
Please make a scan of this secret code to your Google Authenticator
Note: if you change your secret code, please don’t forget to make a scan of your new secret code again.
MoneyPenny added an example of how you can use the two-factor authentication in the correct way:
…after all please, don’t forget to Save Changes.
Your secret code can be wrong if there is a time difference of more than 2 mins between your phone and your computer; if you changed the secret code and forgot to scan to the authentication application and if you lost your phone. In this case, you should contact our Customer Support and we will help you.