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Microsoft Defender for Office 365 Blog
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2,338

Test your team’s security readiness with the Gone Phishing Tournament

Clare_Ouyang on Sep 25 2023 11:19 AM
Save your spot and sign up for Fortra's Terranova Security annual Gone Phishing Tournament 2023: October 9-27, 2023
3,049

Send "How-to guides" to your organization from Attack Simulation training

Clare_Ouyang on Aug 22 2023 09:12 AM
Attack Simulation Training now includes an exciting new feature: "How-to Guides" that can be sent to users to provide in...
3,351

Announcing the availability of in-product guidance!

Ben_Harris on Aug 01 2023 11:18 AM
Learn more about the latest in product improvements to supercharge your adoption and understanding of Microsoft Defender...
8,530

Announcing New DMARC Policy Handling Defaults for Enhanced Email Security

SehrishKhan on Jul 31 2023 08:47 AM
Today we are announcing important changes to our DMARC policy handling that affects both consumer and enterprise custome...
6,175

SANS training content now available within Attack Simulation Training!

Clare_Ouyang on Jun 29 2023 07:28 AM
We are introducing 12 new security essentials training for IT admins from SANS for Attack Simulation Training
4,984

Threat Explorer: UX enhancements, URL clicks tab and customizable export

SehrishKhan on May 30 2023 12:05 PM
New Threat Explorer V3 by Microsoft Defender for Office 365 with improved user experience to detect and investigate pote...
11.7K

Responding to targeted mail attacks with Microsoft 365 Defender

AlexanderZagranichnov on May 11 2023 10:22 AM
Spear phishing campaign is a type of attack where phishing emails are tailored to specific organization, organization’s ...
7,411

Introducing the release of Attack Simulation Training Write API functionality (available in beta)

SehrishKhan on May 04 2023 01:12 PM
We are excited to announce the release of Attack Simulation Write API functionality, a powerful tool for improving your ...
6,660

Training only campaign is now available with an expanded training module library

SehrishKhan on Apr 13 2023 11:26 AM
You can now assign training from our 300% larger training module library directly to users without requiring a phishing ...
5,341

Attack Simulation Training: Using machine learning to drive more effective simulations

VipulPandey on Apr 11 2023 09:30 AM
Attack Simulation Training (AST) is an advanced tool that helps security teams improve their performance. It allows team...
14.8K

Email Protection Basics in Microsoft 365: Anti-malware, Safe Attachments, and Quarantine

SehrishKhan on Apr 10 2023 09:54 AM
This blog is the part four in a series aimed at demystifying how email protection works in Microsoft 365.
2,885

Announcing Collaboration Security for Microsoft Teams

SehrishKhan on Mar 28 2023 08:06 AM
Bringing the full feature set that customers use to protect their email environments across prevention, detection, and r...
9,576

Enhanced threat detection with URL click alerts by Microsoft Defender for Office 365

Ajaj_Shaikh on Mar 21 2023 12:47 PM
Microsoft Defender for Office 365 now features alerting policy enhancements to support the detection, investigation, and...
8,025

Introducing the New Post-delivery Activities Report in Microsoft Defender for Office 365

SehrishKhan on Feb 14 2023 09:00 AM
We’re happy to announce the launch of a new Post-delivery activity report that makes managing and investigating ZAP even...
15.6K

Automatic tenant Allow/Block list expiration management is now available

SehrishKhan on Jan 26 2023 09:23 AM
Managing the allow entries in the Tenant Allow/Block List just got easier
7,661

Attack Simulation Training: New insights into targeted user behavior

Brandon Koeller on Jan 03 2023 12:18 PM
Attack Simulation Training now provides enhanced user telemetry to better understand the behavior of users targeted by p...
6,135

Security MVP Spotlight (Most Valuable Professional)

UrjaGandhi on Dec 20 2022 09:14 AM
Meet Microsoft’s Most Valuable Professional Security experts! We want our MVPs’ stories told.
9,376

Getting started as a Security MVP (Most Valuable Professional)

Ben_Harris on Dec 19 2022 09:47 AM
Are you passionate about sharing your technical knowledge and always willing to help others? You could be a future MVP!
3,458

Why Microsoft is the right choice for healthcare

Ben_Harris on Nov 17 2022 08:46 AM
Learn why Microsoft is the right choice for your security needs in healthcare.
16.4K

Microsoft announces partnership with SANS Institute

Brandon Koeller on Nov 03 2022 09:47 AM
Microsoft Defender for Office 365 is pleased to announce a partnership with SANS Institute to deliver a new series of co...
21K

Build custom email security reporting with Microsoft Defender for Office 365 and PowerBI

Faith-Ebenezer_Oquong on Oct 31 2022 03:45 PM
Sharing how to leverage PowerBI to visualize email security reporting details with Microsoft Defender for Office 365
20.4K

Introducing the Microsoft Defender for Office 365 Security Operations Guide

Daniel Mozes on Sep 26 2022 09:46 AM
Today, we’re pleased to announce the release of the Microsoft Defender for Office 365 Security Operations Guide.
22.9K

Email Protection Basics in Microsoft 365: Spoof and Impersonation

AndrewStobart on Sep 20 2022 12:33 PM
This blog is part three in a series aimed at demystifying how email protection works in Microsoft 365.
5,636

step-by-step guides - v2 release!

Ben_Harris on Sep 06 2022 10:00 AM
You spoke and we listened! Find out what's new in the latest way to get tasks done with Microsoft Defender for Office 36...
8,162

Introducing tenant blocks via admin submissions

Dhairyya_Agarwal on Aug 22 2022 10:00 AM
Announcing the ability to create tenant blocks via the admin submissions flyout in the Defender portal.
5,560

Introducing new actions from the Email Entity page!

soumyamishra on Aug 11 2022 11:00 AM
We’re announcing new actions that can be taken from the popular Email Entity page.
6,191

Exciting Feature Updates to Attack Simulation Training

Stu Clark on Aug 04 2022 01:05 PM
We are pleased to announce a new Oauth payload, new HTML attachment type payload and external sender identification supp...
17.8K

Email Protection Basics in Microsoft 365: Spam & Phish

Alex Hudish on Jun 30 2022 09:00 AM
This blog is part two in a series aimed at demystifying how email protection works in Microsoft 365.
9,198

Microsoft Defender for Office 365 Ninja Training: June 2022 Update

CTang885 on Jun 24 2022 12:46 PM
An update covering the latest additions to the Microsoft Defender for Office 365 Ninja Training
9,059

Announcing the release of step-by-step guides!

Ben_Harris on Jun 08 2022 11:04 AM
Step-by-step guides is our new outcome-driven documentation release to help you get from zero to hero with a feature in ...

Latest Comments

MikeP751860
in Email remediation actions now available in unified Action Center on Sep 27 2023 08:08 AM
Hi, Any plans to allow email notifications or a workflow to notify admins of pending actions or to build a SOAR process to automate the pending actions?
0 Likes
A1
in Test your team’s security readiness with the Gone Phishing Tournament on Sep 26 2023 01:03 AM
Great article with which I completely agree!"The human element: Employees are the heartbeat of your organization, intricately involved in data creation and management. The inherent vulnerability of human behavior presents a lucrative opportunity for attackers, who frequently use social engineering t...
0 Likes
Chris Lehr
in Automatic tenant Allow/Block list expiration management is now available on Sep 25 2023 08:09 AM
I've not worked with a GCC customer in some time, so I recently learned that admin submissions are rather limited in those tenants. You can submit an email to Microsoft just the same as in commercial tenants, but then you see this: So if Microsoft isn't taking in any of the data from an Admin submis...
0 Likes
timbld
in Send "How-to guides" to your organization from Attack Simulation training on Sep 18 2023 07:32 AM
Hi @Clare_Ouyang,A bit off topic, but I hope you can help me out a little bit.A few ago the option 'Select delivery platform' (as in your screenshot in your post) was part of starting a new simulation. However the option Teams in there was greyed out? When I try to start a new simulation as of now, ...
0 Likes
A1
in Announcing New DMARC Policy Handling Defaults for Enhanced Email Security on Aug 07 2023 04:53 AM
@alexandruliviunitaThis is an excerpt from this article:"We’ve already begun rolling out the new policies, starting July 19, 2023, we will continue to rollout them out to our government and 21Vianet clouds. As stated in Message Center posts MC640228 (worldwide and government clouds) and MC640225 (21...
0 Likes