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Cortex Xpanse vs Microsoft Defender External Attack Surface Management comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 2025

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

Cortex Xpanse
Ranking in Attack Surface Management (ASM)
7th
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
6
Ranking in other categories
No ranking in other categories
Microsoft Defender External...
Ranking in Attack Surface Management (ASM)
14th
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Microsoft Security Suite (33rd)
 

Mindshare comparison

As of January 2026, in the Attack Surface Management (ASM) category, the mindshare of Cortex Xpanse is 2.9%, down from 4.3% compared to the previous year. The mindshare of Microsoft Defender External Attack Surface Management is 3.1%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Attack Surface Management (ASM) Market Share Distribution
ProductMarket Share (%)
Cortex Xpanse2.9%
Microsoft Defender External Attack Surface Management3.1%
Other94.0%
Attack Surface Management (ASM)
 

Featured Reviews

Ali Mohamed - PeerSpot reviewer
Account Manager at Cairo International Airport Co.
Proactively manages security and identifies vulnerabilities with good alerts
We use Cortex Xpanse as a security control for attack surface management in our organization When there is an alert from Cortex Xpanse regarding a certificate or surface, it prompts us to take immediate action. It checks vulnerabilities periodically, ensuring they are addressed, which helps in…
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…

Quotes from Members

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

Pros

"The most valuable aspect is its ability to catch trojans and malware."
"The best feature of the product is that it's easy to manage when we have set it up, and the beneficial impact of Cortex Xpanse for the company is security."
"The most valuable aspect is its ability to catch trojans and malware."
"Cortex Xpanse is a strong solution for attack surface management, including digital brand protection and continuous monitoring."
"Cortex Xpanse has an easy-to-use user interface."
"The most valuable features of the solution are its firewall and antivirus."
"When there is an alert from Cortex Xpanse regarding a certificate or surface, it prompts us to take immediate action."
"As an attack surface manager, I highly recommend Cortex Xpanse, especially if there are many services exposed publicly on the internet."
"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."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
 

Cons

"Cortex Xpanse should offer better customization and configuration options on its dashboard."
"Cortex Xpanse needs to add dark-web scanning."
"It's challenging to confirm the absolute coverage and penetration of Cortex Xpanse into the Dark Web. The solution lacks comprehensive intelligence on adversaries and risks, which other competitors might provide."
"Cortex Xpanse should offer better customization and configuration options on its dashboard."
"Some improvements are needed in the user interface. It may require more enhancements."
"Some improvements are needed in the user interface."
"Regarding technical support, I would rate it as a seven."
"There is an issue with the old versions of Cortex, and so when we have an older one with Windows or any OS, we have a problem with its connectivity with the cloud."
"The integration is not as seamless compared to competitors like Palo Alto."
"With Microsoft, support is always crazy, it's not easy to get support."
"Further integration across different Microsoft products would be an improvement."
 

Pricing and Cost Advice

"Cortex Xpanse is cheaper than other solutions."
"The tool's cost is too high."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
11%
Government
9%
Manufacturing Company
8%
Computer Software Company
17%
Financial Services Firm
12%
Energy/Utilities Company
6%
Outsourcing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Cortex Xpanse?
I don't know the licensing or setup cost; I have no idea about the cost.
What needs improvement with Cortex Xpanse?
I'm not sure right now; I have nothing to comment on regarding what could be improved in the product. We are using it and we are satisfied. I have nothing to comment right now on what other feature...
What is your primary use case for Cortex Xpanse?
Cortex Xpanse is usually used for security from clients.
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 ...
 

Overview

Find out what your peers are saying about Cortex Xpanse vs. Microsoft Defender External Attack Surface Management and other solutions. Updated: December 2025.
879,443 professionals have used our research since 2012.