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Unsanctioned Cloud Apps not working on Google Chrome

Mr Onka 5 Reputation points
2025-10-06T12:15:11.67+00:00

Hi,

We recently implemented the Unsanctioned feature on the Microsoft Defender for Cloud App. it is working in Micrsoft Edge but not working in Google Chrome. Can you advise what else I should do to make it work in Google Chrome?

thanks.

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud Apps
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  1. Prathista Ilango 670 Reputation points Microsoft Employee
    2025-10-14T09:26:01.9466667+00:00

    Hello Mr Onka,

    Network Protection is a requirement to block unsanctioned apps. You can try installing the Microsoft Defender Browser Protection add-on for third- party browsers and check.

    Refer to: https://learn.microsoft.com/en-us/defender-cloud-apps/governance-discovery#prerequisites

    Also refer here for related discussions: https://techcommunity.microsoft.com/discussions/microsoftdefendercloudapps/blocking-of-unsanctioned-apps/3073954

    If you found the information above helpful, please Click Yes. This will assist others in the community who encounter a similar issue, enabling them to quickly find the solution and benefit from the guidance provided.

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  2. EduardsGrebezs 1,171 Reputation points
    2025-11-18T07:51:53.0966667+00:00

    Hi,

    Check on endpoint you should have Network Protection to be enabled in block mode:

    Get-MpPreference | Select-Object -Property EnableNetworkProtection
    1. 1 = Enabled (Block mode)
    2. 2 = Audit mode
    3. 0 = Disabled If it’s not 1, enable it via Intune or Group Policy.

    Check your Antivirus policy which is deployed to endpoints. If you use Intune check AV setting:

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