04/25/2025
📝𝗛𝗼𝘄 𝗧𝗼: Managing App Protection Policies for Unmanaged Devices in Microsoft Intune
If you’re setting up an App Protection Policy (MAM) in Intune and want it to apply only to unmanaged devices (think personal phones or laptops that access corporate apps like Outlook, Teams, or OneDrive), you’ll notice that the old method of selecting 'Unmanaged Devices Only' is no longer available.
👉 Instead, Microsoft now requires you to:
Set Target to apps on all device types = Yes (𝘯𝘰 𝘸𝘢𝘺 𝘢𝘳𝘰𝘶𝘯𝘥 𝘵𝘩𝘪𝘴).
Create and assign a MAM Assignment Filter where:
🖱️ Property: deviceTrustType
🖱️ Operator: Equals
🖱️ Value: Azure AD registered
✅ Azure AD registered devices are typically personal BYOD devices, not fully managed corporate assets.
By filtering this way, you can tightly control which apps and devices are protected — without over-enforcing restrictions on corporate-managed devices that already meet compliance standards.
Key takeaway:
Don’t look for “𝘋𝘦𝘷𝘪𝘤𝘦 𝘔𝘢𝘯𝘢𝘨𝘦𝘮𝘦𝘯𝘵 𝘛𝘺𝘱𝘦” when filtering MAM policies anymore — use Device Trust Type and target Azure AD registered devices instead.
Security is constantly evolving, and small changes like this have a big impact when you're scaling secure access in hybrid environments.