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Microsoft Defender External Attack Surface Management vs Qualys CyberSecurity Asset Management comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

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)
9th
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Microsoft Security Suite (33rd)
Qualys CyberSecurity Asset ...
Ranking in Attack Surface Management (ASM)
2nd
Average Rating
9.0
Reviews Sentiment
7.0
Number of Reviews
35
Ranking in other categories
Vulnerability Management (7th), Patch Management (5th), Cyber Asset Attack Surface Management (CAASM) (3rd), Software Supply Chain Security (2nd)
 

Mindshare comparison

As of May 2026, in the Attack Surface Management (ASM) category, the mindshare of Microsoft Defender External Attack Surface Management is 3.5%, up from 3.0% compared to the previous year. The mindshare of Qualys CyberSecurity Asset Management is 3.7%, up from 2.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Attack Surface Management (ASM) Mindshare Distribution
ProductMindshare (%)
Qualys CyberSecurity Asset Management3.7%
Microsoft Defender External Attack Surface Management3.5%
Other92.8%
Attack Surface Management (ASM)
 

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…
Nicki Møller - PeerSpot reviewer
Information Security Engineer at a manufacturing company with 5,001-10,000 employees
Enables automation and quick access to necessary information
One of the significant challenges Qualys is discovery, which I know Microsoft excels at. I can't recall how well Qualys performs this function; it seems I might be missing some details. However, if there's one key aspect to focus on, it's discovery—the ability to identify assets that you are not aware of, even when you can see they are present. Understanding what those assets are is crucial. With Qualys CyberSecurity Asset Management, it was very difficult to extract detections from the system. The features within Qualys are limited to what they have developed. Sometimes a complete overview is needed to push to a Power BI dashboard, Splunk, ServiceNow, or other platforms. The export process is incredibly challenging. We needed a developer to write a hundred-line Python script that would loop over certain assets due to export limitations. Qualys CyberSecurity Asset Management could improve its integration capabilities. While it generates substantial data, correlating it with other data sources can be challenging. The export process is difficult, and pre-built integrations with other tools could be enhanced for better process implementation.

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."
"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."
"My favourite feature of Qualys CyberSecurity Asset Management is its ability to target missing software."
"The fact that it is integrated makes it very easy to understand."
"The support is extremely helpful, deserving a 10 out of 10 rating."
"We have had zero attacks since we enabled all the features in Qualys CSAM."
"With Qualys CSAM, we can see which assets have critical application vulnerabilities. This feature helps us prioritize and address these vulnerabilities more efficiently."
"Authorized and unauthorized software visibility is the best feature for me. It helps me understand security controls on our network and where we lack visibility. With a single security tool, we are able to get an extensive list."
"It provides most of the information needed regarding the assets, including the operating system and whether the assets are network devices or servers."
"The end-of-life and end-of-service software and hardware are some of my favorite features."
 

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."
"Currently, whenever the agent is running, it consumes over ten percent of my CPU, indicating that CPU consumption is another area Qualys needs to address."
"As of now, the support, results, and low false positives do not necessitate changes."
"I think the one thing Qualys CyberSecurity Asset Management can do better is the package management and the updating process."
"We have had challenges modifying the agent configuration. Particularly, when we want to change the tenant that the agent is pointing to, we have had difficulties making that reliable and working properly."
"Based on the company's budget, Qualys offers limited features, which can also be utilized in other environments."
"They should address the false positives generated in EASM. It is fetching assets that have Infosys as the keyword."
"The activity log is terrible."
"Qualys could improve by enhancing its dynamic tagging and role-based access control features, and by refining its user interface for a more intuitive and efficient user experience."
 

Pricing and Cost Advice

Information not available
"The pricing is market-competitive."
"The cost for Qualys CyberSecurity Asset Management is high."
"The pricing for Qualys Cybersecurity Asset Management is reasonable, with an annual subscription costing around $1,000 per year or a monthly subscription starting at approximately $72 per month, depending on the specific package and features included."
"Though the solution is considered expensive, if bundled with other services such as VMDR or cloud agents, its value would significantly increase. It is currently a bit costly, but with bundling, it could become attractive to more customers."
"The pricing is fair. I would love to see the price come down a little bit, but we do get a lot of value out of it. We are squeezing every ounce of value we can out of the tool."
"The pricing is reasonable relative to the features provided, as it collects all module data and operates as a main, centralized inventory, making it a cost-effective solution."
"The Qualys Cybersecurity Asset Management pricing is well-aligned with our usage."
"Qualys is competitively priced for its features. Its pricing is suitable for large organizations with more than 4,000 assets, but for smaller organizations with few assets, such as banks, the costs might be high. They should come up with packages that are suitable for small organizations."
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893,244 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
10%
Outsourcing Company
8%
Government
5%
Financial Services Firm
15%
Computer Software Company
10%
Manufacturing Company
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise23
 

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 needs improvement with Qualys CyberSecurity Asset Management?
I think the one thing Qualys CyberSecurity Asset Management can do better is the package management and the updating process. Knowing that you can't update any of the packages until you've done the...
What is your primary use case for Qualys CyberSecurity Asset Management?
I primarily use it for a small, single-site, multi-source setup with multi-WAN inputs. I have a main fiber connection and a couple of failovers while managing different networks across different se...
 

Overview

Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Qualys CyberSecurity Asset Management and other solutions. Updated: April 2026.
893,244 professionals have used our research since 2012.