Merge pull request #5352 from VipulMSFT/patch-27

Patch 27: Added reference about lack of support for hidden membership groups.

Author: chrisda

defender-office-365/attack-simulation-training-simulation-automations.md

@@ -12,7 +12,7 @@ ms.collection:
   - tier2
 description: Admins can learn how to create automated simulations that contain specific techniques and payloads that launch when the specified conditions are met in Microsoft Defender for Office 365 Plan 2.
 search.appverid: met150
-ms.date: 10/23/2024
+ms.date: 10/23/2025
 appliesto:
   - ✅ <a href="https://learn.microsoft.com/defender-office-365/mdo-about#defender-for-office-365-plan-1-vs-plan-2-cheat-sheet" target="_blank">Microsoft Defender for Office 365 Plan 2</a>
 ---
@@ -196,6 +196,9 @@ On the **Target users** page, select who receives the simulation. Use the follow
     - Distribution groups (static only)
     - Mail-enabled Security groups (static only)
 
+    > [!TIP]
+    > Currently, hidden membership groups aren't supported.
+
     The following search tools are available:
 
     - **Search for users or groups**: If you click in the :::image type="icon" source="media/m365-cc-sc-search-icon.png" border="false"::: **Search** box and do one of the following actions, the **Filter users by categories** options on the **Add users** flyout are replaced by a **User list** section:

defender-office-365/attack-simulation-training-simulations.md

@@ -13,7 +13,7 @@ ms.collection:
 ms.custom:
 description: Admins can learn how to simulate phishing attacks and train their users on phishing prevention using Attack simulation training in Microsoft Defender for Office 365 Plan 2.
 search.appverid: met150
-ms.date: 10/22/2024
+ms.date: 10/23/2025
 appliesto:
   - ✅ <a href="https://learn.microsoft.com/defender-office-365/mdo-about#defender-for-office-365-plan-1-vs-plan-2-cheat-sheet" target="_blank">Microsoft Defender for Office 365 Plan 2</a>
 ---
@@ -211,6 +211,9 @@ On the **Target users** page, select who receives the simulation. Use the follow
     - Distribution groups (static only)
     - Mail-enabled Security group (static only)
 
+    > [!TIP]
+    > Currently, hidden membership groups aren't supported.
+
     The following search tools are available:
 
     - **Search for users or groups**: If you click in the :::image type="icon" source="media/m365-cc-sc-search-icon.png" border="false"::: **Search** box and do one of the following actions, the **Filter users by categories** options on the **Add users** flyout are replaced by a **User list** section:

defender-office-365/attack-simulation-training-training-campaigns.md

@@ -12,7 +12,7 @@ ms.collection:
   - tier2
 description: Admins can learn how to create training campaigns in Attack simulation training in Microsoft Defender for Office 365 Plan 2.
 search.appverid: met150
-ms.date: 10/23/2024
+ms.date: 10/23/2025
 appliesto:
   - ✅ <a href="https://learn.microsoft.com/defender-office-365/mdo-about#defender-for-office-365-plan-1-vs-plan-2-cheat-sheet" target="_blank">Microsoft Defender for Office 365 Plan 2</a>
 ---
@@ -110,6 +110,9 @@ On the **Target users** page, select who receives the Training campaign. Use the
     - Distribution groups (static only)
     - Mail-enabled security groups (static only)
 
+    > [!TIP]
+    > Currently, hidden membership groups aren't supported.
+
   The following search tools are available:
 
   - **Search for users or groups**: If you click in the :::image type="icon" source="media/m365-cc-sc-search-icon.png" border="false"::: **Search** box and do one of the following actions, the **Filter users by categories** options on the **Add users** flyout are replaced by a **User list** section: