Microsoft
microsoft.com › en-us › security › business › siem-and-xdr › microsoft-defender-office-365
Microsoft Defender for Office 365 | Microsoft Security
Defender for Office 365 Plan 1 offers protection against advanced cyberattacks across email and collaboration tools in Microsoft 365.
Microsoft Learn
learn.microsoft.com › en-us › defender-office-365 › mdo-about
Why do I need Microsoft Defender for Office 365? - Microsoft Defender for Office 365 | Microsoft Learn
October 30, 2025 - As a companion to this article, see our Microsoft Defender for Office 365 setup guide to review best practices and to protect against email, link, and collaboration threats. Features include Safe Links, Safe Attachments, and more.
MS Office 365 Defender vs Windows Defender
They have like 70 products named defender. More on reddit.com
25
16
September 16, 2022What is your experience with Defender for Office 365?
Catches 80% ish. The other 20% is up to users being savvy. More on reddit.com
8
3
October 23, 2023Microsoft Defender for Business with 365 Business Premium (still?) missing
will start rolling out March 1, 2022 You've already answered your own question. More on reddit.com
6
4
March 4, 2022Enable Defender for Office 365 for SharePoint, OneDrive, and Microsoft Teams
Why not just create a test policy and scope it to a few pilot users to see how it will effect you? I assume you are talking about creating a policy for Safe Links, Safe Attachments and/or Anti-malware? You can do this pretty easily here . Link above just takes you to: Microsoft 365 Defender>Policies & Rules>Threat Policies>Anti-Malware. For Safe Attachments and Safe Links policies, just step back one and you'll find it in the Policies Section in Threat Policies area here . Think it's the Safe Attachments that you mean though, correct? The one I did in my Azure lab is scoped to just me, but when I did this at work I created a Group, added some pilot users and then scoped to that to test when we did this. Probably best to scope any policy to some pilot group first rather than globally. More on reddit.com
3
1
February 2, 2022Videos
30:22
Learn How to Configure Defender for Office 365 for Maximum Security ...
28:18
How to Set Up Defender for Office 365: A Complete Guide - YouTube
04:22
The new overview page | Microsoft Defender for Office 365 - YouTube
Get Started with Microsoft Defender for 365 - YouTube
01:10:37
Mastering Microsoft Defender for Office 365: Configuration Best ...
Microsoft Learn
learn.microsoft.com › en-us › office365 › servicedescriptions › office-365-advanced-threat-protection-service-description
Microsoft Defender for Office 365 service description - Service Descriptions | Microsoft Learn
October 28, 2025 - Microsoft Defender for Office 365 is a cloud-based email filtering service that helps protect your organization against unknown malware and viruses by providing robust zero-day protection, and includes features to safeguard your organization ...
Microsoft Learn
learn.microsoft.com › en-us › defender-office-365
Microsoft Defender for Office 365 security documentation - Microsoft Defender for Office 365 | Microsoft Learn
Learn about the robust security solutions in Defender for Office 365 to better protect your email and collaboration tools.
CISA
cisa.gov › resources-tools › services › m365-defender-office
Microsoft Defender for Office 365 | CISA
Microsoft 365 (M365) Defender is a cloud-based enterprise defense suite that coordinates prevention, detection, investigation, and response. This set of tools and features are used to detect many types of attacks. This baseline focuses on the features of Defender for Office 365, but some settings ...
BleepingComputer
bleepingcomputer.com › home › news › microsoft › microsoft teams to let admins block external users via defender portal
Microsoft Teams to let admins block external users via Defender portal
4 days ago - Microsoft Defender for Office 365 now blocks email bombing attacks
BlueVoyant
bluevoyant.com › home › microsoft defender for office 365: workflow, features, and plans
Microsoft Defender for Office 365: Workflow, Features & Plans
March 15, 2023 - This cloud-based solution offers ... Microsoft Defender for Office 365 can prevent phishing schemes, email-based malware attacks, and account takeover of business emails....
Itsasap
itsasap.com › blog › microsoft-defender-office-365
What is Microsoft Defender for Office 365? (A Beginner’s Guide)
November 8, 2024 - According to Microsoft, it’s a cloud-based email filtering service that protects your business from threats to email & collaboration tools. Essentially, Defender for Office 365 targets threats that can be coursed through your use of Office 365.
Wroffy
wroffy.com › home › microsoft defender for office 365
Microsoft Defender for Office 365 | Microsoft Security
September 28, 2025 - Microsoft Defender for Office 365 is a cloud-based email filtering service that helps protect organization against unknown malware & threats.
Microsoft Learn
learn.microsoft.com › en-us › defender-office-365 › defender-for-office-365-whats-new
What's new in Microsoft Defender for Office 365 - Microsoft Defender for Office 365 | Microsoft Learn
Considerations for integrating non-Microsoft security services with Microsoft 365: Considerations and recommendations for deploying a defense-in-depth email security strategy using non-Microsoft security services. Introducing LLM-based BEC detection and classification: Microsoft Defender for Office 365 now detects BEC attacks using large language model (LLM)-based filters to analyze an email's language and infer intent.
AppDirect
catalog.appdirect.com › en-US › apps › 444474 › microsoft-defender-for-office-365
Microsoft Defender for Office 365 | AppDirect Marketplace
Help protect and secure your organization and empower your frontline to work in new and flexible ways.
360 Visibility
360visibility.com › home › blog › microsoft office 365 › defender for office 365 and what it decision makers should know
Defender for Office 365 and What IT Decision Makers Should Know
January 9, 2025 - Microsoft Defender for Office 365 is the ideal tool for IT decision makers. It supports cybersecurity for businesses by simplifying threat management, automating responses, and seamlessly integrating with the Microsoft 365 suite.
Microsoft Learn
learn.microsoft.com › en-us › defender-office-365 › try-microsoft-defender-for-office-365
Try and evaluate Defender for Office 365 - Microsoft Defender for Office 365 | Microsoft Learn
April 18, 2025 - Learn how to evaluate and try the capabilities of Microsoft Defender for Office 365 without affecting your existing mail flow.
Reddit
reddit.com › r/office365 › ms office 365 defender vs windows defender
r/Office365 on Reddit: MS Office 365 Defender vs Windows Defender
September 16, 2022 -
I an an Office 365 (O365) subscriber. I received an email advising that Microsoft Defender, a new online security APP, is included in O365.
I'm confused. Doesn't Windows include Defender (Windows Security)? If so, why would I need to install an APP?
Top answer 1 of 4
22
They have like 70 products named defender.
2 of 4
22
Defender for 365 - protects Microsoft 365 - no endpoint protection. Defender for Cloud - protects Microsoft Azure Defender for Identity - protects Azure AD Defender for Business/Defender for Endpoint - EDR/MDR/XDR for devices including Linux and MacOS - defender for business was relatively recently released as part of Microsoft 365 Business Premium (which has included Microsoft Defender for 365 for a while)
Integrityts
blog.integrityts.com › microsoft-defender-for-office-365
How To Use Microsoft Defender For Office 365
May 12, 2025 - Microsoft 365 Defender protects an enterprise's email messages and Office 365 resources. Generally, Microsoft 365 Defender is a unified pre- and post-breach enterprise cybersecurity defense suite that can be used by small and medium-sized businesses ...
ECF Data
ecfdata.com › home › microsoft defender for office 365
Microsoft Defender for Office 365 | ECF Data LLC
August 18, 2025 - Microsoft Defender Protect all of Office 365 against advanced threats like business email compromise and credential phishing
Microsoft
aka.ms › microsoft community hub › communities › products › microsoft security › microsoft defender for office 365
Microsoft Defender for Office 365
Copper ContributorSep 05, 2025Place Microsoft Defender for Office 365Microsoft Defender for Office 365 ... Microsoft defender false tags and deletes freegate VPN as trojan virus https://en.m.wikipedia.org/wiki/Freegate
Reddit
reddit.com › r/sysadmin › what is your experience with defender for office 365?
r/sysadmin on Reddit: What is your experience with Defender for Office 365?
October 23, 2023 -
I'm looking into implementing Defender for Office 365 Plan 1 or 2 for a small company with 30 users. We currently use basic Exchange Online Protection which is included with Microsoft 365 business standard. The high volume of false negatives is a huge headache.
If we upgraded to Defender for Office 365, in your experience would this actually make the system handle false negatives better, or does it just add extra features like simulated spear-phishing, and URL detonation?
Thanks!
Top answer 1 of 4
1
Catches 80% ish. The other 20% is up to users being savvy.
2 of 4
1
So we have Defender for 365 P2 which is included with our Partner licensing for most users. We make sure all our high profile and high risk (both due to role and those who are simply idiots) have it on their account. Rarely does Defender for 365 actively prevent anything. Pretty much everything is let right though. What Defender will do rather well is let you know that a link was determined to be malicious 3 hours after a user clicked on it. It's very much a "you've been screwed" reporting tool and should not realistically be looked at or expected to be more than that. That said it still has value as it's better to know that it happened and be able to check/remediate immediately vs waiting until something more serious happens later on.
Microsoft Learn
learn.microsoft.com › en-us › defender-office-365 › mdo-usage-card-about
Usage card in Microsoft Defender for Office 365 - Microsoft Defender for Office 365 | Microsoft Learn
September 3, 2025 - The active usage of Exchange Online licenses and how many of those licenses are active usage of Microsoft Defender for Office 365. A Breakdown of active usage across key Plan 1 and Plan 2 capabilities (Plan 1: protection and detection; Plan 2: SecOps capabilities). The Number of active Plan 1 and Plan 2 licenses purchased. In the Microsoft Defender portal at https://security.microsoft.com, go to Reports > Email & collaboration section > Email & collaboration reports.
Dev4Side
dev4side.com › en › blog › microsoft-365-defender
Microsoft 365 Defender: What it is and 7 key advantages
This is possible thanks to the ... and mobile devices). Defender for Office 365, for checking e-mail, attachments and all the apps that are part of the Microsoft 365 suite (formerly Office 365)....