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Microsoft Defender External Attack Surface Management vs Microsoft Defender XDR comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Microsoft Defender External...
Ranking in Microsoft Security Suite
33rd
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Attack Surface Management (ASM) (15th)
Microsoft Defender XDR
Ranking in Microsoft Security Suite
4th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
108
Ranking in other categories
Endpoint Detection and Response (EDR) (9th), Extended Detection and Response (XDR) (6th)
 

Mindshare comparison

As of August 2026, in the Microsoft Security Suite category, the mindshare of Microsoft Defender External Attack Surface Management is 1.3%, up from 0.3% compared to the previous year. The mindshare of Microsoft Defender XDR is 5.1%, down from 6.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsoft Security Suite Mindshare Distribution
ProductMindshare (%)
Microsoft Defender XDR5.1%
Microsoft Defender External Attack Surface Management1.3%
Other93.6%
Microsoft Security Suite
 

Featured Reviews

AndyChan3 - PeerSpot reviewer
General manager at a tech services company with 201-500 employees
Enhanced visibility and exposes vulnerabilities but needs more integration
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will move to full-scale production in another year, maybe Microsoft External Attack Surface Management…
reviewer2812758 - PeerSpot reviewer
Infosec at a government with 10,001+ employees
Integrated defenses have unified threat hunting, phishing simulations, and identity investigations
I appreciate Microsoft Defender XDR's MDE, Microsoft Defender tool, which has Attack Simulator. Instead of doing a phishing campaign and getting a separate tool, Microsoft Defender XDR does it all. These features of Microsoft Defender XDR have helped us conduct a phishing campaign quarterly, which has been beneficial. I also appreciate the fact that it has Defender for Office integrated, Defender for Identity, and everything integrated together. I would describe the process of using Microsoft Defender XDR to prioritize incidents in my security operations as quite decent. I appreciate the automatic alerting system where any incidents or alerts we receive come directly to our email. From there, we can open the email, go directly to Microsoft Defender XDR, and start our investigations and remediations. I perceive the integration of security and identity access management in Microsoft Defender XDR as affecting my identity protection strategies very well because it is well integrated with Purview, integrated well with Entra ID, and integrated well with Exchange. I especially appreciate MDO, the Office product. If anything happens and I want to conduct an investigation, it takes me directly to Exchange, where I can also investigate any emails or phishing incidents. Instead of going to different portals, everything can be done from Microsoft Defender XDR. If necessary for further investigation, Microsoft Defender XDR then directs me to that environment. I would assess the integration of AI in guiding security actions within Microsoft Defender XDR as quite positive. Recently, Security Copilot went big, and it is beneficial that I can use that, especially to write KQL. I can do threat hunting features and intelligence all within using Microsoft's Security Copilot. It also has a nice AI feature for threat hunting. I know that all the Defender logs go to Sentinel, and I can pull it up from Microsoft Defender XDR or from Sentinel. The fact that I can actually do all that within Microsoft Defender XDR is a nice feature. In the top module, I can do threat lookups, and I can actually type KQLs in Microsoft Defender XDR and look up incidents. Predictive shielding has had a nice impact on my proactive security measures. It is beneficial that it has, similar to Entra ID, a secure score. For me to improve the product, the secure score helps me out. If I rate it from highest to lowest, I can see what things I can improve. Secure score helps me see what areas I can improve in Microsoft Defender XDR to increase my score and bring it to 80 or more. Knowing Microsoft Defender XDR from using it since 2019, before COVID days, I know that they have improved significantly. It is much more user-friendly and has a very nice vulnerability feature that I find handy and useful. The fact that this feature integrates into Intune is also very decent.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"It seems to be better at protecting from cyberattacks."
"It's a great threat intelligence source for us, providing alerts for things it detects on the network and on the machines. We've used it often when there is a potential incident to see what was done on a computer. That works quite nicely because you can see everything that the user has done..."
"Advanced hunting is good. I like that. We can drill down to lots of details."
"I have found the ability to delete unwanted threats beneficial."
"The email protection feature is the most valuable because our risks primarily lie there, and it seems to be the most popular target."
"The common and advanced security policies for threat hunting and blocking attacks are valuable."
"In Microsoft 365 vendor products, monitoring and connectivity across all Microsoft and third-party connectors enable viewing of all activity within those environments."
"The most valuable features are machine learning, AI, and auto-remediation of none malicious alerts."
"The support provides a 24 hrs service which I am completely satisfied with."
 

Cons

"Further integration across different Microsoft products would be an improvement."
"With Microsoft, support is always crazy, it's not easy to get support."
"The integration is not as seamless compared to competitors like Palo Alto."
"It would be beneficial to have a more seamless experience with everything consolidated in one place, particularly when dealing with aspects related to the Exchange console."
"When discussing the secure score, which includes overviews and recommended actions, some of these recommended actions are not applicable to us, particularly those related to Microsoft Internet Explorer, which we do not use in any of our environments."
"Sometimes, digging into the information and knowing where to go can be difficult. It would be better if much of that information were immediately visible, especially when looking at endpoints or users."
"The initial time spent setting up and configuring Defender XDR is a bit longer than the other solutions. If everything were on one portal, the platforms for managing policies or alerts would be simpler. We must automate and manage policies on Intune rather than the same portal."
"Microsoft 365 Defender does not have a unique package with emerging endpoint security technologies, such as EDR and XDR."
"The onboarding and offboarding need improvement."
"Correctly updated records are the most significant area for improvement. There have been times when we were notified of a required fix; we would carry out the fix and confirm it but still get the same notification a week later. This seems to be a delay in records being updated and leads to false reporting, which is something that needs to be fixed."
"Sometimes, configurations take much longer than expected."
 

Pricing and Cost Advice

Information not available
"Sometimes 365 Defender is expensive, but it can be moderate, depending on the organization's size and the license type. We're satisfied with the cost because it gives us a product that protects our entire environment with DLP. To compromise some cost, of course, we are to complete the most secure environment."
"Microsoft purposely makes its license combinations complex and includes combinations like Microsoft 365 E3 and Microsoft 365 E5, Office 365 E3, Office 365 E5, and Office 365 E1, so you get confused. Microsoft tries to sell you a bundle of a lot of things together."
"The pricing of Microsoft 365 Defender is definitely on the costly side, but with the features and services that Microsoft provides, such as the seamless integration of all the Defender tools, while the price is on the higher side, there is no alternative."
"The price could be better. Normally, the costs depend on the country you're located in for the license. When we were in the initial stage, we went with the E5 license they call premium standard. It cost us around $5.20 per month for four users."
"Microsoft Defender XDR is already included in our Office 365 licensing. It is better because we're saving money by using it."
"We have a lot of problems in Latin America regarding the price of Microsoft 365 Defender, because the relationship between dollars and the money of the different countries, it's is a lot. Many customers that have small businesses say that they would like the solution but it is too expensive. However, large companies do not find the cost an issue."
"Microsoft Defender XDR's licensing is complicated."
"The licensing fee for Microsoft 365 Defender is fair."
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Top Industries

By visitors reading reviews
Outsourcing Company
12%
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
6%
Financial Services Firm
9%
Computer Software Company
9%
Comms Service Provider
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise28
Large Enterprise41
 

Questions from the Community

What needs improvement with Microsoft Defender External Attack Surface Management?
Further integration across different Microsoft products would be an improvement. Introduction of more AI automation into the products would also be beneficial. The integration is not as seamless co...
What is your primary use case for Microsoft Defender External Attack Surface Management?
I am currently in the pilot stage of implementing Microsoft External Attack Surface Management (EASM). My organization is transitioning to a comprehensive track of Microsoft solutions, and we will ...
What is your experience regarding pricing and costs for Microsoft 365 Defender?
My experience with the pricing, setup costs, and licensing of Microsoft Defender XDR is that we are on an E5 license, so it is incorporated there. It is part of our Microsoft package.
What needs improvement with Microsoft 365 Defender?
From my perspective, Microsoft Defender XDR can be improved with better visibility in certain areas where I can trigger host isolation on one machine. It should at least provide the option to isola...
What is your primary use case for Microsoft 365 Defender?
My main use cases for Microsoft Defender XDR are telemetry, advanced hunting, and the ability to perform host isolation if there is potential malware. I believe the incidents prioritized using Micr...
 

Also Known As

No data available
Microsoft 365 Defender, Microsoft Threat Protection, MS 365 Defender
 

Overview

 

Sample Customers

Information Not Available
Accenture, Deloitte, ExxonMobil, General Electric, IBM, Johnson & Johnson and many others.
Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Microsoft Defender XDR and other solutions. Updated: June 2026.
909,725 professionals have used our research since 2012.