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Microsoft Defender External Attack Surface Management vs Microsoft Defender XDR comparison

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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) (16th)
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) (5th)
 

Mindshare comparison

As of October 2026, in the Microsoft Security Suite category, the mindshare of Microsoft Defender External Attack Surface Management is 1.3%, up from 0.4% compared to the previous year. The mindshare of Microsoft Defender XDR is 4.9%, 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 XDR4.9%
Microsoft Defender External Attack Surface Management1.3%
Other93.8%
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

"It seems to be better at protecting from cyberattacks."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"The most valuable feature is the network security."
"The incident-level visibility across the cyber attack chain when using Microsoft Defender XDR is great."
"Microsoft Sentinel enables you to ingest data from your entire ecosystem, investigate threats, and respond from one place, which has reduced our time to detection and time to response by about 20 percent."
"Based on my experience, I rate Microsoft Defender XDR as nine out of ten."
"Defender XDR has a feature called the timeline that lets you track all activities. It helps a lot with investigations."
"The most valuable feature of all is the full integration with the rest of the software in the operating system and Office 365, as well as Microsoft SCCM. It is quite easy for us to work with the whole instance of Microsoft products. This integration improves the benefits of the whole suite of products."
"Within advanced threat hunting, the tables that have already been defined by Microsoft are helpful. In the advanced threat hunting tab, there were different tables, and one of the tables was related to device info, device alert, and device events. That was very helpful. Another feature that I liked but didn't have access to was deep analysis."
"What I like most about the product is its all-in-one solution. With Microsoft Defender XDR, we get coverage for various aspects like endpoint security, cloud security, and image-related cases, all within a single platform. This eliminates the need for multiple products or technical controls to address incidents. The main benefit became evident immediately after deployment, especially in its ability to analyze files and phishing emails quickly. By submitting suspicious files or emails, we receive quick results on whether they are legitimate, suspicious, or malicious, saving time."
 

Cons

"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."
"Further integration across different Microsoft products would be an improvement."
"It would be helpful if the solution could scan faster when it comes to scanning attachments to emails."
"The console is missing some features that would be helpful for a managed services provider, like device and user management."
"We struggle sometimes with tier one support agents who give canned responses."
"The web filtering solution needs to be improved because currently, it is very simple."
"Defender XDR could provide recommendations for threat-hunting queries. Some people do not know how to write an advanced threat query, so we need to spend time training them."
"Microsoft Defender is slow to adapt to evolving threats."
"The logs could be better."
"I would like more of the features in Defender for 365 to be included in the smaller licenses. Even if I buy a small license and don't need everything, security shouldn't be a question. Security is one of the main aspects of all projects from our side, so it would be nice to have more features in the smaller licenses."
 

Pricing and Cost Advice

Information not available
"I believe that the pricing of the licensing is fair."
"365 Defender can get expensive because you pay per gigabyte of data ingested. On the other hand, much of the data available in the other Microsoft security solutions are made available relatively cheaply—sometimes at cost or for free. Integrating only a limited set of third-party solutions with Sentinel would be cost-effective. It's much more affordable if companies only have Microsoft stuff."
"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."
"They have moved from a licensing model to pay-per-use... The question is: What happens if, for any reason, there's not enough budget to accept this model? That could be a great problem."
"Microsoft Defender XDR is expensive."
"The most valuable licensing option is expensive, so pricing could be improved. Licensing options for this solution also need to be consolidated, because they frequently change."
"It can be complex to navigate since customers have varying licensing agreements across Microsoft. If they go straightforward with E5 for all users, it's simple, but combinations based on budget constraints can complicate things."
"While Microsoft Defender XDR carries a higher cost, its ease of use compared to Defender may justify the investment."
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Top Industries

By visitors reading reviews
Outsourcing Company
13%
Computer Software Company
10%
Financial Services Firm
9%
Comms Service Provider
7%
Financial Services Firm
9%
Outsourcing Company
8%
Computer Software Company
8%
Comms Service Provider
8%
 

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: September 2026.
917,433 professionals have used our research since 2012.