1. Sign in to your GTI wallet account.
  2. Go to your profile page tapping your name in right upper corner of the screen
  3. At the bottom of the page click on "Enable TFA" button
  4. Open the Google Authenticator App (on your mobile or tablet) and scan the QR code displayed,
  5. Enter the 6-digit verification code generated from your  Google Authenticator  and click “Submit” – the set-up is now completed.

For more detailed information on the Google Authenticator go to:

https://www.google.com/landing/2step/