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

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 27, 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

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 (33rd)
Qualys CyberSecurity Asset ...
Ranking in Attack Surface Management (ASM)
3rd
Average Rating
9.2
Reviews Sentiment
7.7
Number of Reviews
22
Ranking in other categories
Vulnerability Management (8th), Patch Management (6th), Cyber Asset Attack Surface Management (CAASM) (3rd), Software Supply Chain Security (5th)
 

Mindshare comparison

As of August 2025, in the Attack Surface Management (ASM) category, the mindshare of Microsoft Defender External Attack Surface Management is 3.0%, up from 2.7% compared to the previous year. The mindshare of Qualys CyberSecurity Asset Management is 3.7%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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…
Scott Frederick - PeerSpot reviewer
Well-integrated with our vulnerability scanning utilities and efficient in asset tagging and identification
Our favorite features are the tagging and the ability to quickly find assets in the portal. Additionally, I do like the fact that Qualys CSAM is integrated with the rest of our vulnerability scanning utilities. We use the full suite from Qualys. The fact that it is integrated makes it very easy to understand. It shares tagging information with VMDR. That is very nice. Qualys CSAM has discovered assets not previously covered by our vulnerability management program. Primarily, if we have assets without vulnerabilities, they become less visible, but Qualys CSAM alerts us to them because they have IP addresses and are attached to our network. It could discover everything from printers to servers to endpoints. It could discover UPSs, network devices, and across all operating systems. It discovers our security badge readers and digital signage. We have to feed that the IP address ranges, but beyond that, it finds everything in our internal network. We were able to realize its benefits within the first quarter of installing it. We did have to take some time to learn it and understand how to operationally leverage what it was telling us, but it was very quick. In addition to vulnerabilities, Qualys CSAM helps identify other risk factors to a degree. For instance, we can see if servers or assets have incorrect naming standards. We have our network segmented into development model, test, and production, and we have server naming standards that identify which management they should be in. If a production server has the naming standard of a development model server, we can find that. That is one area we have used it for. We are not fully using TruRisk, but we are using the Qualys detection score that is central to our corporate risk prioritization approach. It has completely replaced our homegrown one.

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."
"Overall, I would give Qualys CyberSecurity Asset Management a nine out of ten."
"I would rate the Qualys CSAM a ten out of ten for its overall performance."
"Qualys CyberSecurity Asset Management has helped to improve the organization's security posture significantly."
"The support is extremely helpful, deserving a 10 out of 10 rating."
"Authorized and unauthorized software visibility is the best feature for me."
"Qualys CSAM helps find all the assets. It categorizes information based on various criteria such as host and tenant version. It provides in-depth visibility into both hardware and software."
"Qualys CyberSecurity Asset Management offers comprehensive features to cover our entire attack surface."
"The end-of-life and end-of-service software and hardware are some of my favorite features."
 

Cons

"Further integration across different Microsoft products would be an improvement."
"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."
"Some areas that would be helpful are more comprehensive tagging and the ability to set up better dynamic rules."
"In my opinion, the area that needs improvement is the role-based access control (RBAC). The access privilege management needs to be more robust and streamlined to enhance user access management. Additionally, improvements to the user interface could be beneficial."
"The main aspect that needs improvement is the user interface, which should be more intuitive."
"Further research and development are needed to enhance integration with other cloud agents and products, particularly improving communication with external products and vendors."
"Based on the company's budget, Qualys offers limited features, which can also be utilized in other environments."
"There can be further simplification to reduce the overall noise and provide ESAM-related data."
"Currently, in the EASM module, the scan frequency is limited to once daily, but allowing end users control over scan scheduling would be advantageous."
"The only minor issue is occasionally being redirected to multiple teams, causing slight delays."
 

Pricing and Cost Advice

Information not available
"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."
"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."
"Qualys CyberSecurity Asset Management can be expensive, especially if we already have VMDR."
"It is cost-effective because, in a single tool, we are getting everything. All the solutions come in a single license or price."
"The cost for Qualys CyberSecurity Asset Management is high."
"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 for Qualys CSAM is nominal."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
13%
Manufacturing Company
7%
Comms Service Provider
5%
Computer Software Company
17%
Financial Services Firm
15%
Government
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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 Qualys CyberSecurity Asset Management?
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.
What needs improvement with Qualys CyberSecurity Asset Management?
Qualys CyberSecurity Asset Management helps us prioritize assets according to operating system, kernel version, installed software, and current version information. The ASM assists with attack surf...
What is your primary use case for Qualys CyberSecurity Asset Management?
We are using Qualys CyberSecurity Asset Management for daily activities such as identifying new assets through network scanning and agent-based scanning for newly provisioned assets. When any new a...
 

Overview

Find out what your peers are saying about Microsoft Defender External Attack Surface Management vs. Qualys CyberSecurity Asset Management and other solutions. Updated: July 2025.
865,295 professionals have used our research since 2012.