Effective July 10, 2023 Microsoft Announces Mandatory Microsoft Authenticator App for MFA

  • Thursday, 29th June, 2023
  • 10:19am

The following links and information is from our Partner Zix | App River with links to Microsoft


This announcement is for All Microsoft Users Effective July 10, 2023 


Microsoft Announces Mandatory Microsoft Authenticator App for MFA for all users relying on SMS (text) and voice. Prompts can only be skipped 3 times after which registration of the app will be required.


Read the full announcement below and we have provided KB articles for more information and steps to manage the new MFA change.


Microsoft Announcement - Changes to the Registration Campaign Feature in Azure AD (How to change the prompting for users to register with Microsoft Authenticator app )

Incident Report from Zix | AppRiver

This incident affects: Office 365. 


Message Summary:

Publicly switched telephone networks (PSTN) such as SMS and voice authentication are the weakest forms of MFA. To help your users move away from them, Microsoft is introducing changes to the Microsoft managed state of the Registration campaign feature in Azure Active Directory.

When this will happen:

Starting July 10, 2023

How this affects your organization:

Starting July 10th, 2023, users in your organization that are relying on SMS and voice for MFA will be prompted to register with the Microsoft Authenticator app. They can skip this prompt for a maximum of 3 times, after which registration of the app will be required.

What you can do to prepare also how to exempt users for now:

We urge you to motivate your users to stop using SMS and voice for MFA. However, if some of your users need more time you can exempt them for now. Sign in as Global Administrator (see #2 below)  or Authentication Policy Administrator and go to Azure AD > Protect & Secure > Authentication Methods > Registration campaign and exclude these users.



Please see the following KB articles for further information and steps for managing the new MFA changes:

1. MFA Policy Changes and Registration Campaign - https://support.zixcorp.com/app/answers/detail/a_id/2867

2. How to Manage MFA Registration Campaign as Admin - https://support.zixcorp.com/app/answers/detail/a_id/2868

3. How to Register with Microsoft Authenticator App as User - https://support.zixcorp.com/app/answers/detail/a_id/2869

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