Microsoft Defender for Office 365 Overview

Microsoft Defender for Office 365

By Microsoft

4.7★★★★★(225 Ratings)Write review

What is Microsoft Defender for Office 365?

Microsoft Defender for Office 365 is a native, cloud-based security service integrated directly into the Microsoft 365 suite. It provides unified, advanced threat protection across Exchange Online, SharePoint, OneDrive, and Teams. It specializes in defending against sophisticated attacks like Business Email Compromise (BEC) and credential phishing through Safe Links and Safe Attachments, which scan URLs and files in real-time. A standout capability is its automated investigation and response (AIR) system, which uses artificial intelligence to analyze threats, correlate signals, and take corrective actions, such as removing malicious emails from all user inboxes, significantly reducing manual intervention.

Who it's for:

This service is essential for any organization with a Microsoft 365 subscription, from small businesses to global enterprises. It is particularly critical for security and IT teams looking to leverage deep integration, automate threat response, and gain comprehensive visibility into threats across the entire Office 365 environment.

Our verdict:

As the native security solution for Microsoft 365, Defender for Office 365 offers unparalleled integration, powerful AI-driven automation, and a holistic defense strategy, making it a best-in-class choice for organizations fully invested in the Microsoft ecosystem.

Microsoft Defender for Office 365 Details

Microsoft Defender for Office 365 Platforms supported

Cloud, SaaS, Web-Based

Desktop Chromebook

Desktop Linux

Desktop Mac

Desktop Windows

Mobile Android

Mobile iPad

Mobile iPhone

On-Premise Linux

On-Premise Windows

Microsoft Defender for Office 365 Support options

Microsoft Defender for Office 365 Training options

Documentation

Live Online

Videos

Webinars

In-Person

Microsoft Defender for Office 365 Related Categories

Computer Security

Email Management

Network Security

Anti-spam

Email Security

Microsoft Defender for Office 365 Typical customers

Freelancers

Small Businesses

Small to Mid size businesses

Mid size businesses

Mid to Large size enterprises

Large enterprises

Very Large enterprises

Microsoft Defender for Office 365 Features

Most valued Microsoft Defender for Office 365 features by users

Allow / Block List

Archiving & Retention

Email Routing

Encryption

Quarantine

Reporting/Analytics

Spam Blocker

Spam Detection

Email Attachment Protection

Fraud Detection

Policy Management

Whitelisting/Blacklisting

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