Yep, we do. 

It adds another layer of security to your account & ensures that when you login or make a withdrawal that its really you using your account. 

This means that when you login on a new device, you will be asked for a code generated from your Authenticator App (like Google Authenticator etc). There is also two-factor authentication when withdrawing funds to your local bank account. 

To set up 2FA, visit Your Profile Page and choose "Security Settings (2FA)" and follow the steps there.