 In this session we're going to be discussing multi-factor authentication which we'll often refer to as MFA during the course of this video. Multi-factor authentication is one of the best things that you can do to ensure the identity of your users. It basically offers an additional layer of security in addition to the username and password that a user would use when logging into their Office 365 account. There are a few different ways to enable multi-factor authentication. We're going to be discussing three of those and we're also going to show you how what the end-user experience would be once multi-factor authentication is enabled for their account. So let's get to it.