diff --git a/windows/security/threat-protection/microsoft-defender-atp/configure-proxy-internet.md b/windows/security/threat-protection/microsoft-defender-atp/configure-proxy-internet.md
index d115e3867d..8d3133a0cf 100644
--- a/windows/security/threat-protection/microsoft-defender-atp/configure-proxy-internet.md
+++ b/windows/security/threat-protection/microsoft-defender-atp/configure-proxy-internet.md
@@ -13,7 +13,9 @@ author: mjcaparas
 ms.localizationpriority: medium
 manager: dansimp
 audience: ITPro
-ms.collection: M365-security-compliance 
+ms.collection: 
+- m365-security-compliance 
+- m365-initiative-defender-endpoint
 ms.topic: article
 ---
 
diff --git a/windows/security/threat-protection/microsoft-defender-atp/preview.md b/windows/security/threat-protection/microsoft-defender-atp/preview.md
index e67120d349..e6bc0d25bd 100644
--- a/windows/security/threat-protection/microsoft-defender-atp/preview.md
+++ b/windows/security/threat-protection/microsoft-defender-atp/preview.md
@@ -13,7 +13,9 @@ author: mjcaparas
 ms.localizationpriority: medium
 manager: dansimp
 audience: ITPro
-ms.collection: M365-security-compliance 
+ms.collection: 
+- m365-security-compliance 
+- m365-initiative-defender-endpoint
 ms.topic: conceptual
 ---
 
diff --git a/windows/security/threat-protection/microsoft-defender-atp/whats-new-in-microsoft-defender-atp.md b/windows/security/threat-protection/microsoft-defender-atp/whats-new-in-microsoft-defender-atp.md
index 2f6aaf198d..ef2b779d74 100644
--- a/windows/security/threat-protection/microsoft-defender-atp/whats-new-in-microsoft-defender-atp.md
+++ b/windows/security/threat-protection/microsoft-defender-atp/whats-new-in-microsoft-defender-atp.md
@@ -13,7 +13,9 @@ author: mjcaparas
 ms.localizationpriority: medium
 manager: dansimp
 audience: ITPro
-ms.collection: M365-security-compliance 
+ms.collection: 
+- m365-security-compliance 
+- m365-initiative-defender-endpoint
 ms.topic: conceptual
 ---