Office 365 setup mfa4/10/2023 The service settings page allows you to set universal settings for all users in your tenant. You don’t want to deal with the help desk calls you’re going to get if you turn on MFA for all your users at once.īefore you turn on MFA for any users, let’s look at the services setting at the top. You can turn on MFA for selected users without having to turn it on for everyone. If you look closely, you’ll see MFA is set to ‘Disabled’ for all users except me. You’ll get to a page that lists all the accounts in your tenant and each account's MFA status (user names blacked out below to protect the email addresses of the not-so-innocent). Select the MFA option from the top of the listed settings, and click though to the MFA configuration GUI. To turn on MFA, go to the Office 365 Admin portal and navigate to Azure Multi-factor authentication as shown in the screenshot below: You also need to turn on Modern Authentication to get a true MFA experience, but more on that in a bit. Or to be more specific, turning on MFA alone will not give you MFA for most of your Office 365 applications. Turning on Multi-Factor Authentication in your Office 365 tenant is not as straightforward as you’d think. Since different applications use different authentication methods, Multi-Factor Authentication can work differently for different applications. Each application authenticates users in different ways. Office 365 is not one application, but rather a collection of applications. When Office 365 MFA originally launched, it was barely MFA at all. They are thinking of protecting a “single sign-on” experience with two factor authentication. I find when my customers think about MFA, they are thinking about the experience they have on a VPN, or maybe the experience when using MFA to sign into their workstations in the morning. In this blog post, I will explain what configurations you need and what MFA experience you will get based on those configurations. The problem is that there is a confusing warren of options and configurations that greatly affect the MFA experience an Office 365 user will, or will not, see. Multi-factor authentication has been available, at least for users with administrator roles assigned, in Office 365 since June 2013.
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