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title Microsoft Defender for Office 365 for US Government customers
author chrisda
ms.author chrisda
manager bagol
audience Admin
ms.topic overview
ms.localizationpriority high
search.appverid
MET150
MOE150
ms.assetid
ms.collection
m365-security
tier1
highpri
essentials-overview
ms.custom
description Learn about the Microsoft Defender for Office 365 for US Government
ms.service defender-office-365
adobe-target true
ms.date 01/21/2026
appliesto
✅ <a href="https://learn.microsoft.com/defender-office-365/eop-about" target="_blank">Default email protections for cloud mailboxes</a>
✅ <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 1 and Plan 2</a>
✅ <a href="https://learn.microsoft.com/defender-xdr/microsoft-365-defender" target="_blank">Microsoft Defender XDR</a>

Microsoft Defender for Office 365 for US government customers

Microsoft Defender for Office 365 for US Government customers, built in the Azure US Government environment, uses the same underlying technologies as Defender for Microsoft 365 in Azure Commercial.

Defender for Microsoft 365 is available to Microsoft Government Community Cloud (GCC), Microsoft 365 GCC High, and Microsoft 365 DoD customers and is based on the same prevention, detection, investigation, and remediation as the commercial version. However, there are some differences in the availability of capabilities for Defender for Microsoft 365.

Licensing requirements

Defender for Office 365 for US Government customers requires one of the following Microsoft volume licensing offers:

GCC GCC High DoD
Microsoft 365 GCC G5 Microsoft 365 E5 for GCC High Microsoft 365 G5 for DOD
Microsoft Defender Suite licenses Microsoft Defender Suite licenses Microsoft Defender Suite licenses
Standalone Defender for Office 365 licenses Standalone Defender for Office 365 licenses Standalone Defender for Office 365 licenses

URLs

To access Defender for Office 365 for US Government offerings, use the following URLs for the Microsoft Defender portal as described in the following table:

US Government offering Microsoft Defender portal
GCC security.microsoft.com
GCC High security.microsoft.us
DoD security.apps.mil