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Microsoft Defender Vulnerability Management vs The NodeZero Platform by Horizon3.ai 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:
 

ROI

Sentiment score
4.4
Microsoft Defender's financial benefits are unclear, best within E5 suite, and difficult to assess against AWS for mixed solution users.
Sentiment score
3.6
NodeZero Platform cuts pen testing costs, enhances efficiency, reduces remediation time, and uncovers hidden network issues for revenue opportunities.
Organizations typically do not rely solely on Microsoft products to avoid putting all eggs in one basket, which presents a challenge for maximizing ROI.
Cloud Security Engineer at a computer software company with 51-200 employees
As a Microsoft partner, we receive significant discounts, making the solution affordable for us.
COO at Floating-Dot Technology LTD
A reduction in remediation time has been seen because it is finding things before they happen.
Director of Enterprise Security at a energy/utilities company with 51-200 employees
Being able to find them because there have been no eyes on that particular section so far ever, and fixing those potentially prevented those companies from getting breached.
IT Security Consultant at Systemhaus for you GmbH
So far, I have seen a return on investment with The NodeZero Platform by Horizon3.ai, as we managed to save a lot of time and effort with this because this is an autonomous tool, and our manual effort is significantly reduced because of a product of this type.
Senior Manager | Manager Security Services at RISK ASSOCIATES
 

Customer Service

Sentiment score
6.1
Microsoft Defender Vulnerability Management receives mixed reviews, highlighting expertise gaps and communication delays but valued for friendly assistance.
Sentiment score
7.0
NodeZero Platform's customer service is highly rated for responsiveness and expertise, despite occasional licensing challenges and bandwidth delays.
They are sometimes responsive, however, often issues cannot be reproduced on their end, making it challenging.
Security Specialist at Prudential Systems Japan
The support we receive from Microsoft is declining, and for example, after taking advanced support, we have not received satisfactory answers.
Microsoft Solutions Manager at Self-Employed
They are familiar with Microsoft products but are not direct Microsoft staff, which is an area needing improvement.
Cloud Security Engineer at a computer software company with 51-200 employees
Overall, when it comes to The NodeZero Platform's tech support, you can reach them via a chat message on their website, and they respond almost immediately.
Director of IT Security at a manufacturing company with 1,001-5,000 employees
Previously, with time-sensitive engagements, I would worry about resolving issues before deadlines. That concern has diminished as they've become more responsive and require less escalation to engineering.
Principal Consultant at JTI Cybersecurity
The vast majority of times they are able to resolve the exact questions my team has on the first attempt, which is really good for customer or technical support.
Chief Information Officer at a construction company with 1,001-5,000 employees
 

Scalability Issues

Sentiment score
7.0
Microsoft Defender Vulnerability Management is lauded for scalability and integration across environments, though some users seek improved documentation.
Sentiment score
7.2
The NodeZero Platform is scalable, supports Docker, and efficiently handles varied network assets, enhancing performance for diverse environments.
The integration is straightforward for those who understand it, though documentation needs improvement.
Cloud Security Engineer at a computer software company with 51-200 employees
It is scalable; I evaluated the product and decided to use Defender on over 700 of our company servers.
Security Specialist at Prudential Systems Japan
We have conducted pen tests in environments with hundreds of thousands of IP addresses without any scalability issues.
CEO at cybovate
We currently scan approximately 1,500-2,000 assets and haven't encountered any scaling or throughput issues.
Information Security Manager at a non-profit with 51-200 employees
The platform offers various insider threats, segmentation tests, phishing tests, and PCI DSS tests.
Head Dig IT Al And Response/ Consultant at a tech services company with 11-50 employees
 

Stability Issues

Sentiment score
6.7
Microsoft Defender Vulnerability Management is appreciated for stability and ease despite resource intensity and occasional compatibility issues.
Sentiment score
8.2
NodeZero Platform is stable and reliable, with minor issues easily fixed; excellent for live environments without compromising systems.
There are compatibility issues occasionally arising with false positives when other security tools are not whitelisted in Microsoft Defender.
information Security and IT Manager at Discover Dollar Technologies Pvt Ltd.
It is very resource-intensive, consuming a lot of memory and CPU.
Security Specialist at Prudential Systems Japan
If Microsoft experiences downtime, this solution goes down as it is a SaaS-based solution where we have no control.
Cloud Security Engineer at a computer software company with 51-200 employees
We have not encountered any issues on the platform regarding accessibility, performance, or stability.
CEO at cybovate
Regarding stability, it has never crashed, and there has not been any lagging from deployment or running.
Director of Enterprise Security at a energy/utilities company with 51-200 employees
I would rate the stability of The NodeZero Platform by Horizon3.ai as a ten.
Senior Manager | Manager Security Services at RISK ASSOCIATES
 

Room For Improvement

Microsoft Defender Vulnerability Management needs simplified configuration, better integration, faster updates, and advanced features for improved security and efficiency.
NodeZero Platform needs enhancements in vulnerability tools, scalability, reporting, and onboarding for improved user experience and integration.
This scoring should be for specific industries as well. If I belong to the healthcare industry using Microsoft Defender Vulnerability Management, it should provide me with a risk score and show how I fare against the risk score of my industry.
DGM. Technical Security at a tech services company with 10,001+ employees
A vulnerability I patch within 15 minutes takes 24 additional hours for an update.
information Security and IT Manager at Discover Dollar Technologies Pvt Ltd.
The product is not stable; it often uses excessive memory and CPU, which makes it slow.
Security Specialist at Prudential Systems Japan
This service reveals which credentials and email addresses are available on the deep web, as well as which domains have been set up using typo-squatting techniques.
Information Security Manager at a non-profit with 51-200 employees
The one thing that is very much asked from us as a service provider is DAST testing, so when a company is building a software, they could see their current security status while they are building the application.
Offensive Security Analyst at a tech services company with 201-500 employees
One of the areas where improvement is needed is in the visibility and reporting for large enterprises.
CEO at cybovate
 

Setup Cost

Microsoft Defender Vulnerability Management offers competitive pricing in industry, though costs can be complex, especially for non-partners.
Enterprise buyers find NodeZero Platform pricing competitive, cost-efficient, and flexible with IP-based licensing and low setup costs.
Overall, every organization wishes for cheaper options, but we look at the security side as well, so we are good for now.
Senior Cloud Security Consultant at MetLife
For non-partners, however, the cost could be seen as higher, between seven to ten.
COO at Floating-Dot Technology LTD
The pricing is reasonable, and it's included in the whole Microsoft E5 bundle, so it's all-inclusive.
Corporate Planner at MISC Berhad
The pricing is much more affordable than traditional penetration tests.
Manager, Information Technology at a performing arts with 11-50 employees
It's a bit cheaper than manual penetration testing because manual testing typically allows you to scan only a few subnets.
Works at a hospitality company with 201-500 employees
Usually, manual penetration test scans take considerable time and money.
Security Engineer at Herjavec Group
 

Valuable Features

Microsoft Defender offers asset discovery, real-time intelligence, seamless integration, risk prioritization, continuous monitoring, and proactive remediation with AI capabilities.
NodeZero Platform offers automated tests, remediation guidance, and autonomous operation for streamlined, cost-effective vulnerability management with comprehensive reporting.
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.
DGM. Technical Security at a tech services company with 10,001+ employees
The feature for customizing to region-specific and domain-specific requirements in healthcare is particularly beneficial.
Cloud Security Engineer at a computer software company with 51-200 employees
The most valuable aspect is the kind of assessment results I get, and the recommendations provided in Microsoft products really help in taking care of the resources.
Senior Cloud Security Consultant at MetLife
When a new vulnerability, such as a zero-day exploit, is identified, they review your previous scans to determine if you might be vulnerable to it, and they proactively notify you.
Director of IT Security at a manufacturing company with 1,001-5,000 employees
The detailed reports not only list the vulnerabilities that matter, but they also include direct links to patches.
Information Security Manager at a non-profit with 51-200 employees
The NodeZero Platform's real attack capabilities help in identifying vulnerabilities on our on-prem systems because it provides actual vulnerabilities by attacking our systems.
Chief Information Security Officer at a construction company with 1,001-5,000 employees
 

Categories and Ranking

Microsoft Defender Vulnerab...
Ranking in Vulnerability Management
13th
Ranking in Advanced Threat Protection (ATP)
18th
Ranking in Risk-Based Vulnerability Management
6th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
18
Ranking in other categories
Microsoft Security Suite (18th)
The NodeZero Platform by Ho...
Ranking in Vulnerability Management
9th
Ranking in Advanced Threat Protection (ATP)
11th
Ranking in Risk-Based Vulnerability Management
2nd
Average Rating
8.8
Reviews Sentiment
6.1
Number of Reviews
23
Ranking in other categories
Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (1st)
 

Mindshare comparison

As of May 2026, in the Vulnerability Management category, the mindshare of Microsoft Defender Vulnerability Management is 1.8%, down from 3.2% compared to the previous year. The mindshare of The NodeZero Platform by Horizon3.ai is 1.5%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
The NodeZero Platform by Horizon3.ai1.5%
Microsoft Defender Vulnerability Management1.8%
Other96.7%
Vulnerability Management
 

Featured Reviews

OB
Microsoft Solutions Manager at Self-Employed
Ensures strong threat and vulnerability management with continuous risk assessment
The major priority is identity, which is crucial; we have lots of companies in manufacturing, energy, or various sectors, and it varies from one to another. I assess Microsoft Defender Vulnerability Management as very effective in continuously assessing vulnerabilities without requiring scans. We use automatic investigation and remediation features, safe attachments, safe links, and real-time reports, which are also very effective. For Active Directory, Defender has threat intelligence, and we are using that. The risk-based prioritization within Vulnerability Management affects my ability to manage vulnerabilities, particularly in relation to the Zero Trust Model utilized by our customers. The end-users often do as they please in their systems.
Brent Hamlin - PeerSpot reviewer
Infrastructure Manager at a construction company with 501-1,000 employees
Continuous threat scanning has improved remediation time and strengthened executive reporting
The best features that The NodeZero Platform by Horizon3.ai offers include the automated scans, which are great to use; you set it, scope it, and let it go, which works really well. The executive reporting feature is impactful for me as a manager, providing a strong foundation to give quarterly and yearly reports to our executives and board to see the state of our infrastructure from a security standpoint. The level of detail and clarity in the executive reports from The NodeZero Platform by Horizon3.ai absolutely helps me communicate effectively with leadership. They are detailed enough for me to extract the necessary information tailored for the executives and to provide a broader perspective on our mitigation efforts or accepted risk stance and where additional controls exist. The NodeZero Platform by Horizon3.ai has positively impacted my organization by giving us a better continuous picture of our security posture, what's exploitable, and what can be used against the organization. It allows us to run scans whenever needed, unlike a single third-party system that only provides a snapshot in time; our processes must be ongoing as the security landscape is dynamic. NodeZero's endpoint security effectiveness feature impacts my understanding of potential security threats by providing a clear picture of both the external and internal landscapes within my organization, enabling me to prioritize and adjust as needed for vulnerabilities such as WordPress plugin issues or user enumerations and software code version assessments. I have built The NodeZero Platform by Horizon3.ai into our weekly and monthly workflows for security CI/CD, and we scan our externally accessible assets every week to address anything quickly if it comes up. That includes our firewalls, websites, and anything that is an external web server, which we scan weekly, while the monthly scans are for internal systems that feed our security CI/CD pipeline, enabling us to action across and prioritize any vulnerabilities caught by The NodeZero Platform by Horizon3.ai.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
8%
Government
7%
Computer Software Company
7%
Comms Service Provider
9%
Manufacturing Company
8%
Government
8%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise7
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise4
Large Enterprise7
 

Questions from the Community

What needs improvement with Microsoft Defender Vulnerability Management?
When I create rules, it gave me problems and I did not know where the problem was located. A small pop-up notification indicating how a rule should be configured would be helpful, rather than the p...
What is your primary use case for Microsoft Defender Vulnerability Management?
I do not use Microsoft Defender Vulnerability Management at work. However, I am currently not working, but I do use Microsoft Defender Vulnerability Management on my personal computer.
What needs improvement with Horizon3.ai?
The NodeZero Platform by Horizon3.ai could be improved by reducing the elapsed time from identifying a zero-day vulnerability from their QA environment to their production environment.
What is your primary use case for Horizon3.ai?
My main use case for The NodeZero Platform by Horizon3.ai includes pen testing and vulnerability management. I use The NodeZero Platform by Horizon3.ai to run weekly external and internal scans to ...
What advice do you have for others considering Horizon3.ai?
My advice to others looking into using The NodeZero Platform by Horizon3.ai is to do yourself a favor and see what the product will find. The platform's real attack capabilities have helped in iden...
 

Also Known As

No data available
Horizon3.ai
 

Overview

 

Sample Customers

Information Not Available
Government agencies, Defense Industrial Base organizations, and enterprises in regulated industries such as finance, healthcare, manufacturing, and criticalinfrastructure rely on NodeZero to meet rigorous security and compliance requirements with continuous, scheduled, and on-demand testing.
Find out what your peers are saying about Microsoft Defender Vulnerability Management vs. The NodeZero Platform by Horizon3.ai and other solutions. Updated: April 2026.
893,244 professionals have used our research since 2012.