You might have heard of Microsoft Authenticator app, but do you really make use of it? Well, you should and I strongly recommend it. Sometimes Microsoft needs to verify your identity to help make sure that you—and only you—have access to your account.
The easiest way for you to verify your identity is with an Identity verification app like Microsoft Authenticator on your mobile device. This is almost same as the two step verification you might be familiar with.
An Identity verification app is always free, fast, secure and keeps away the people who always try to break in to your account. It is also easier than typing the security codes you receive as an SMS, since the app has a built-in security code generator.
In this tutorial we will look into how to add Identity verification app for Outlook.
Adding Identity verification app with Outlook account
If you want to learn more about the app, head to this page