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Blocking access to Cloud apps by integrating Microsoft Cloud App Security with Microsoft Defender Advanced Threat Protection

Microsoft has quietly introduced the option to automatically block connections to unsanctioned cloud apps from the Microsoft Cloud App Security (MCAS) console. This is accomplished by integrating MCAS with Microsoft Defender Advanced Threat Protection (MDATP).

Based on the information available in Cloud App Security, the app’s domains are used to create domain indicators in the Microsoft Defender ATP portal. Within Windows Defender the Exploit Guard Network Policy option is used to block the access to the URLs. This will eventually result in the following notification sent to the user.

Windows 10 Notification

In this blog post I will explain how to setup this functionality when Microsoft Intune is used and what the behavior is within Windows 10. This assumes that you are licensed for both MCAS and MDATP, in my case by using a Microsoft365 E5 license.

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Microsoft deprecates Conditional Access baseline policies in favour of Security Defaults, here is what you need to know and do

Last week, Microsoft announced that the Azure AD conditional access baseline policies will not make it out of their current preview status. The functionality of the baseline policies will be made in available in a new feature called “Security Defaults”, Microsoft will remove the baseline policies on February 29th, so if you are using them you need to take action in order to make sure to keep their functionality in place. Here is what you need to know.

I’ve discussed the baseline policies in part 5 of my blogpost series “Conditional Access Demystified“, while they provided a welcome addition, one of the main disadvantages of the baseline policies in its current preview form was that there was no option to exclude accounts from the policy, which was in contradiction with the best practice for break glass accounts and therefore made the policies not usable in some scenario’s.

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