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CarlosMorales's avatar
CarlosMorales
Brass Contributor
Apr 27, 2023

Block downloads in Microsoft 365 clients

Hi Team.

I have the following requirement:

- Block download files un Microsoft 365 clients (Microsoft Outlook and Teams).}

 

For Web Apps is ready.

I create Conditional Access policy for use conditional access app control and create Microsoft Defender for Cloud Apps policy for sessiĆ³n control file download.

Any file in Outlook Web or Teams Web cannot download file.

 

But policy cannot work in clients (Microsoft Outlook client or Teams client)

How can I apply the document download block on clients?

 

Thanks,

  • Keith_Fleming's avatar
    Keith_Fleming
    Apr 27, 2023

    CarlosMorales you would also need to include unmanaged devices, this can be done through a device filter something like this.

    Then create a separate CA policy to enable session controls for the browser based users

     

  • CarlosMorales session controls are only applicable for browser sessions today.  Some use cases can be accomplished on managed devices through the use of Endpoint DLP.

    • CarlosMorales's avatar
      CarlosMorales
      Brass Contributor
      Thanks.

      I need block apps in personal computers.
      The user only access apps in corporate computers.
      Block web apps is OK with MDCA, but I can't block access in client applications
      • Keith_Fleming's avatar
        Keith_Fleming
        Icon for Microsoft rankMicrosoft

        CarlosMorales what most customers will do in this scenario is block access to native clients on unmanaged devices using a CA policy then force traffic to browser so it can be monitored and controlled by a session policy

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