DISTRIBOOTED allows you to protect your account by using Two-Factore Authentication.
To enable this service go to your Gravatar and select Account.
Under Account page, you will see dedicated section to enable Two-Factor Authentication.
Enabling Two-Factor Authentication will mean that after every log in you will be asked to add code generated in you Google Authenticator app.
If you want to read more about Two-Facotr Authentication check it out here.