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Microsoft Defender External Attack Surface Management vs ThreatMon 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 Attack Surface Management (ASM)
13th
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Microsoft Security Suite (32nd)
ThreatMon
Ranking in Attack Surface Management (ASM)
30th
Average Rating
0.0
Reviews Sentiment
5.3
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Attack Surface Management (ASM) category, the mindshare of Microsoft Defender External Attack Surface Management is 3.1%, up from 2.8% compared to the previous year. The mindshare of ThreatMon is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Attack Surface Management (ASM) Market Share Distribution
ProductMarket Share (%)
Microsoft Defender External Attack Surface Management3.1%
ThreatMon0.5%
Other96.4%
Attack Surface Management (ASM)
 

Featured Reviews

AndyChan3 - PeerSpot reviewer
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…
reviewer2544048 - PeerSpot reviewer
AI-powered discovery enhances threat visibility while customer support excels
I am a reseller. One of our customers suffered an attack a few months ago, and they discovered that they have some data available on the deep and dark web. The biggest driver for using ThreatMon was takedown services. SIEM integration into their incident response was also essential. They wanted…

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."
"Microsoft External Attack Surface Management helps improve the visibility of my exposed vulnerabilities and provides an overview of my security posture across the globe."
"I would recommend ThreatMon."
"Machine learning or AI discovery, which discovers our resources on the deep and dark web, has been very useful."
 

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."
"ThreatMon is very expensive."
"We are looking at a better pricing model to onboard as many customers as possible."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
13%
Manufacturing Company
6%
Energy/Utilities Company
6%
No data available
 

Company Size

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

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 ThreatMon?
ThreatMon is very expensive. We are looking at a better pricing model to onboard as many customers as possible.
What needs improvement with ThreatMon?
We are looking at a better pricing model to onboard as many customers as possible. Additionally, we are trying to figure out certification training. Training and pricing could be improved.
What is your primary use case for ThreatMon?
I am a reseller. One of our customers suffered an attack a few months ago, and they discovered that they have some data available on the deep and dark web. The biggest driver for using ThreatMon wa...
 

Overview

Find out what your peers are saying about CrowdStrike, Trend Micro, Qualys and others in Attack Surface Management (ASM). Updated: September 2025.
867,953 professionals have used our research since 2012.