---
title: Microsoft Defender important guidance
description: A note in regard to important Microsoft Defender guidance.
ms.date: 
ms.reviewer: 
manager: dansimp
ms.author: dansimp
author: dansimp
ms.prod: w10
ms.topic: include
---

> [!IMPORTANT]
> The improved [Microsoft 365 security center](https://security.microsoft.com) is now available in public preview. This new experience brings Defender for Endpoint, Defender for Office 365, Microsoft 365 Defender, and more into the Microsoft 365 security center. [Learn what's new](https://docs.microsoft.com/microsoft-365/security/mtp/overview-security-center). This topic might apply to both Microsoft Defender for Endpoint and Microsoft 365 Defender. Refer to the **Applies To** section and look for specific call outs in this article where there might be differences.