In the last post “What is Two-Factor Authentication?” we discussed about various factors of authentication system including different examples. We also learnt about Knowledge Factor, Inherence Factor and Possession Factor.

Microsoft recently added a second step authentication mechanism in all their accounts as an extra security layer. This post will guide you to turn ON/OFF this security layer.

Two-factor authentication is a user authentication system where an user needs to provide two different factors to authorize the user’s identity. It is not a new concept and in many places we are knowingly or unknowingly using it for secure access.

There could be multiple factors too and that known as Multi-factor authentication. Today in this post we will learn basics about this type of authentication system.