Multi-factor authentication is a method of confirming a user's claimed identity in which a computer user is granted access only after successfully presenting two or more pieces of evidence to an authentication mechanism.
To enable MFA login to the portal and go to User Details.
Click Setup MFA, you will be redirected to a page with the following instructions.
After setting up an authenticator app input the code and click Complete MFA. MFA will now be enabled and you will now be asked to input a code generated by the authenticator app every time you log in, you won't be asked to input your login credentials though.
To turn off MFA simply log back into the portal, again you will be asked for the MFA code. Navigate to User Details and click Remove MFA