No more typing reviews! Try our Samantha, our new voice AI agent.

Microsoft Defender Vulnerability Management vs Nucleus Security comparison

Sponsored
 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 23, 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

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
11th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
39
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (1st), Cloud-Native Application Protection Platforms (CNAPP) (6th)
Microsoft Defender Vulnerab...
Ranking in Vulnerability Management
13th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
18
Ranking in other categories
Advanced Threat Protection (ATP) (20th), Microsoft Security Suite (17th), Risk-Based Vulnerability Management (6th)
Nucleus Security
Ranking in Vulnerability Management
40th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
2
Ranking in other categories
Application Security Tools (28th), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (13th)
 

Featured Reviews

RO
IT Security Expert at Alior Bank S.A.
Unified risk scoring has improved our cloud visibility and simplifies remediation priorities
Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.
reviewer2770602 - PeerSpot reviewer
Cloud Security Engineer at a computer software company with 51-200 employees
Has helped with regional threat monitoring but needs better documentation and real-time capabilities
The documentation from Microsoft needs significant improvement. The documents are disorganized, with one document linking to another, making the steps unclear and difficult to follow. Regarding updates, it is not truly real-time as it takes between eight to twelve hours for updates to occur. It would be beneficial if updates could happen more quickly, perhaps within 10 minutes to half an hour. Support for integration and documentation needs to be more straightforward. The pricing is expensive, even though it is part of the E5 package.
VK
manager at a computer software company with 201-500 employees
Unified vulnerability workflows have transformed how our teams prioritize and resolve critical risks
While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep. When first setting up complex, multi-layered automation rules and asset groupings, the interface can feel a little overwhelming. Having more intuitive step-by-step visualized wizards or guided templates for building complex triage workflows would make the onboarding process much smoother for new team members. Dashboard customization and reporting would definitely be on my wish list. While the default dashboards are great for a general overview, it can take a bit of manual tweaking when building highly tailored workspace views for different engineering groups. Having a more flexible drag-and-drop widget system where individual teams can prioritize exactly what metrics they see first on their layout would be a huge quality of life update. On the reporting side, the data it generates is solid, but I would like to see more granular control over formatting within the platform itself. Sometimes leadership wants data tailored in very specific ways, and currently, we occasionally have to export the data and clean it up externally to meet those exact visual preferences.

Quotes from Members

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

Pros

"TotalCloud has been excellent in providing us with immediate access to all the products and features we need, such as CSPM, TruRisk Insights, and compliance reports, including CIS and HIPAA."
"I would definitely recommend Qualys TotalCloud to other users."
"Qualys TotalCloud's most valuable features are its security capabilities that help identify and mitigate risk factors."
"Qualys TotalCloud provides a single, prioritized view of risk, reducing the workload associated with consolidating multiple sources for risk prioritization."
"One of the most valuable features of Qualys TotalCloud is FlexScan, which is specifically for internet-facing VMs. We found this feature to be very useful. It was a key differentiator for us."
"By integrating TotalCloud, we have significantly reduced vulnerabilities in our deployment pipeline."
"TruRisk Insights is the most important innovation they've released this year."
"Qualys TotalCloud fulfills all these needs."
"The main advantage of Microsoft Defender Vulnerability Management is that it can locate and prevent most threats even when the endpoints are not connected to the corporate network, as long as the internet is available."
"Microsoft Defender Vulnerability Management is a good product, and I believe it deserves a positive recommendation."
"The integration with Sentinel has been one of the most valuable features for my organization."
"The real-time threat intelligence feature of Microsoft Defender Vulnerability Management is helpful in terms of security."
"The product’s most valuable features are compliance, recommendations, and inventories."
"The recommendations, scores, and steps to remediate actions are highly useful."
"The product's stability is very high...The scalability of the product is amazing."
"One valuable feature is the Microsoft Security Scorecard."
"The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms."
"Nucleus Security has fundamentally changed how we manage our vulnerability lifecycle and made our entire incident response process much more proactive, organized, and reliable."
 

Cons

"There should be improvement from a dashboard perspective when collecting and showcasing data to lead management."
"In TotalCloud, I would suggest improvements in policy checks to cater to various inventory types like VPCs, subnets, S3 buckets, or IAMs. There is a lack of data segregation according to criticality or inventory."
"Some major banks and insurance companies require an on-premises solution for comprehensive vulnerability management, which TotalCloud does not offer."
"The cost of Qualys TotalCloud is high and could be more competitive."
"With the growing integration of AI, I would like Qualys to enhance its service offerings to better accommodate AI-related risks."
"The downside is only in container security, but it has not been a long time since they introduced these models."
"Their customer support needs improvement."
"We encountered challenges identifying the correct resource category for certain items, such as those in containers or storage."
"There should be risk scoring added to Microsoft Defender Vulnerability Management; specifically, they call it quantification of the risk."
"The worst aspect is the refresh rate of the dashboard. A vulnerability I patch within 15 minutes takes 24 additional hours for an update."
"The worst aspect is the refresh rate of the dashboard."
"The automated remediations can be more specific."
"There is a good solution from Microsoft, however, there is a gap between Windows and Linux management."
"Integration can be improved."
"Regarding Microsoft's technical support, I would rate it a three out of ten; they could be more responsive and knowledgeable."
"Sometimes the stability of the agents could be improved."
"Nucleus Security needs a better view into exposure management, as exposure management and attack path management are missing."
"While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep."
 

Pricing and Cost Advice

"TotalCloud's price is about right where I would expect it to be."
"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."
"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."
"Qualys TotalCloud offers cost-effective licensing flexibility."
"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."
"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"The tool is a bit costly."
"The licensing costs are reasonable."
"I rate the product's price a three on a scale of one to ten, where one is a low price, and ten is a high price."
"The licensing model follows a per-user per-month structure."
"The product’s pricing is medium."
Information not available
report
Use our free recommendation engine to learn which Risk-Based Vulnerability Management solutions are best for your needs.
903,933 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Manufacturing Company
16%
Financial Services Firm
13%
Construction Company
8%
Comms Service Provider
7%
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
7%
Government
7%
Computer Software Company
13%
Financial Services Firm
13%
Construction Company
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise29
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise8
No data available
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...
What is your primary use case for Qualys TotalCloud?
Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...
What needs improvement with Microsoft Defender Vulnerability Management?
Configuration of Microsoft Defender Vulnerability Management is something that needs improvement. In future updates o...
What is your primary use case for Microsoft Defender Vulnerability Management?
I can control the applications using Microsoft Defender Vulnerability Management, which are its best features for me ...
What is your experience regarding pricing and costs for Nucleus Security?
I have a good experience with that, so we don't have much problem dealing with pricing, setup, and licensing.
What needs improvement with Nucleus Security?
Nucleus Security needs a better view into exposure management, as exposure management and attack path management are ...
What is your primary use case for Nucleus Security?
My main use case for Nucleus Security is unifying the vulnerability management landscape, providing a single source o...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
No data available
 

Overview

Find out what your peers are saying about Qualys, Horizon3.ai, Tenable and others in Risk-Based Vulnerability Management. Updated: June 2026.
903,933 professionals have used our research since 2012.