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ImmuniWeb vs Microsoft Defender External Attack Surface Management 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

ImmuniWeb
Ranking in Attack Surface Management (ASM)
33rd
Average Rating
8.2
Reviews Sentiment
7.8
Number of Reviews
7
Ranking in other categories
Static Application Security Testing (SAST) (32nd)
Microsoft Defender External...
Ranking in Attack Surface Management (ASM)
12th
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Microsoft Security Suite (33rd)
 

Mindshare comparison

As of March 2026, in the Attack Surface Management (ASM) category, the mindshare of ImmuniWeb is 1.1%, up from 0.4% compared to the previous year. The mindshare of Microsoft Defender External Attack Surface Management is 3.2%, up from 2.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Attack Surface Management (ASM) Mindshare Distribution
ProductMindshare (%)
Microsoft Defender External Attack Surface Management3.2%
ImmuniWeb1.1%
Other95.7%
Attack Surface Management (ASM)
 

Featured Reviews

Vivek Ashvinbhai Pancholi - PeerSpot reviewer
Senior Cybersecurity Consultant at a tech consulting company with 1,001-5,000 employees
Commendable Solution with Robust Vulnerability Detection Mechanism Suitable for Global Market
The solution helped us with one of our clients in the New York area contacted us about a data breach. In response, we swiftly organized a case meeting involving our client, internal, and email customer support teams. Together, we conducted an incident response, facilitating offline assistance for proper planning and risk management processes. We delved into the details of the data breach, identified how it occurred, and collaborated to rectify the issue. The client expressed satisfaction with the resolution process.
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 ImmuniWeb Platform is the best and easiest way to secure a business online."
"ImmuniWeb boasts a robust vulnerability detection mechanism, formidable threat mitigation, and an efficient remediation process, incorporating automation techniques and ALM strategies. The solution is highly stable. The solution is scalable. Editing Key Points for Review "Review about ImmuniWeb" What is our primary use case? We use the solution when we face challenges and urgent attention is needed for complex cases from our clients. To address this, we collaborate with the middleware, internal, and client teams to analyze and sort through intricate logs concerning our business cybersecurity program. How has it helped my organization? The solution helped us with one of our clients in the New York area contacted us about a data breach. In response, we swiftly organized a case meeting involving our client, internal, and email customer support teams. Together, we conducted an incident response, facilitating offline assistance for proper planning and risk management processes. We delved into the details of the data breach, identified how it occurred, and collaborated to rectify the issue. The client expressed satisfaction with the resolution process. What is most valuable? ImmuniWeb boasts a robust vulnerability detection mechanism, formidable threat mitigation, and an efficient remediation process, incorporating automation techniques and ALM strategies. It also focuses on consumer satisfaction and operates in English-speaking markets, primarily required by the UAE, the United States, Canada, and Australia, among other developed countries. For how long have I used the solution? We have been using this product for the past one and half years. What do I think about the stability of the solution? The solution is highly stable. I rate it a perfect ten. What do I think about the scalability of the solution? The solution is scalable. I rate it a nine out of ten. How are customer service and support? Support is generally excellent"
"The solution's most valuable feature is reporting."
"After the assessment, you clearly know which assets require penetration testing."
"I like the fully automated continuous discovery run by ImmuniWeb in the background. We do not need to rerun the same tests or the same scanning against our resources. We need to supply our IP addresses, domain names, and significant resources with special domain names and URLs, and we need to do it only once. Then we always have an up-to-date picture. I also like the integration with our single sign-on system. We do not need to maintain a separate set of usernames or user accounts. We can plug this ImmuniWeb service into our authentication technology, enabling two-factor authentication. We have secure authentication right out of the box. The other important feature I like is the executive view. You can easily switch from a technical view to an executive view and have a helicopter view of the compliance status. We can see how much effort is required and our current status."
"The initial setup process is user-friendly."
"The most valuable features are the SLA of Zero false-positives, less time of service development, validation of unlimited patched vulnerabilities, and several others."
"ImmuniWeb is stable."
"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."
"It seems to be better at protecting from cyberattacks."
 

Cons

"The product’s interface for the web applications could be similar to Android and iOS versions."
"A great idea would be to support using Discovery on the internal network, allowing delivery of all the features of the current Discovery to internal network resources."
"ImmuniWeb sometimes shows previous scans instead of running tests."
"The deployment process on the cloud is straightforward, while on-premise can be complex. Support is generally excellent, although there can be delays in ticket resolution."
"A great idea would be to support using Discovery on the internal network, allowing delivery of all the features of the current Discovery to internal network resources."
"A great idea would be to make a mobile application for the ImmuniWeb portal so that all information would be available on the go and from a mobile phone as well. It would be much more convenient."
"Its technical support could be better."
"You may find the dashboard a bit complicated."
"The integration is not as seamless compared to competitors like Palo Alto."
"Further integration across different Microsoft products would be an improvement."
"With Microsoft, support is always crazy, it's not easy to get support."
 

Pricing and Cost Advice

"ImmuniWeb is relatively cheap. It's a competitive price compared to other products in the marketplace. It's worth the money we are paying for it."
"It is pretty expensive."
"I use the product's free version. The tool costs around 229 dollars."
"It is pretty expensive."
"There should be the flexibility to change or add pricing, especially for pay-per-use cases."
"The platform is expensive if a large development is involved. However, it is less expensive for scheduled-based testing, quarterly or in a year."
"The values of ImmuniWeb are currently significantly below what is valued in the Chilean market for these services and solutions."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
10%
Comms Service Provider
10%
Manufacturing Company
7%
Computer Software Company
17%
Financial Services Firm
9%
Outsourcing Company
7%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise2
No data available
 

Questions from the Community

What do you recommend for a securing Web Application?
That's one of the most critical questions any development team faces! Securing a web application requires a layered approach, not a single tool. Here is a quick breakdown of what to recommend: In...
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

 

Sample Customers

Ebay, United Nations, Next Bank Credit Agricole, Geneva Swiss Bank, Banca Stato, Celgene, SIM University, Heymarket, Swissquote, more...
Information Not Available
Find out what your peers are saying about ImmuniWeb vs. Microsoft Defender External Attack Surface Management and other solutions. Updated: February 2026.
885,311 professionals have used our research since 2012.