How to add a Multifactor Authentication using Microsoft or Google Authenticator

Mobile application allows you to register your account with Microsoft / Google or any other TOTP authenticator application (via a specially generated QR code). After successful registration, the authenticator application will generate a new code every 30 seconds which could be used to implement MFA based sign-in. To make it a complete MFA, a PIN is added as a prefix to the application generated code. The sign-in password or some call it Passcode will be PIN+Code.