How does it work?
Two Factor Authentication, also known as 2FA, two step verification or TFA (as an acronym), is an extra layer of security that is known as "multi factor authentication" that requires not only a password and username but also something that only, and only, that user has on them, i.e. a piece of information only they should know or have immediately to hand - such as a physical token.
Using a username and password together with a piece of information that only the user knows makes it harder for potential intruders to gain access and steal that person's personal data or identity.
How do i Enable?
You can enable this per contact on each of your users via the contacts section of your dediserve control panel here https://manage.dediserve.com/clientarea/details/
Once enabled 2FA in your profile + generated/entered secret: You should use the QR code in your google authenticator app to enter the login to your dediserve control panel.
Once that is set, and try to login again, you will see this screen, the code is generated randomly by your google authenticator app.
You can download via the app store
And Google Play here