To enable two-factor authentication, go to your Profile. Then slide the two-factor authentication to ‘On’, as indicated in green.
When you do this, you will receive an email with your security code every time you log into Synergy. You will need to enter the security code before you can access Synergy
The code is required every time you log out of Synergy and try to log back in. If you do not log out of Synergy, you will be asked for the security code on the following day.