Try our new research platform with insights from 80,000+ expert users

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
4.9
Determining ROI for Microsoft Defender Vulnerability Management is challenging due to service bundling and mixed-use of other products.
Sentiment score
3.0
NodeZero Platform boosts efficiency, reduces costs, and improves scalability but shows variable returns on investment for users.
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
6.6
Microsoft Defender's support is praised for expertise but criticized for communication delays and varying service quality.
Sentiment score
6.6
The NodeZero Platform by Horizon3.ai excels in customer service with swift, effective support, earning high satisfaction ratings.
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
7.6
Microsoft Defender excels in scalability and integration but faces documentation and on-premise infrastructure challenges across industries.
Sentiment score
7.3
NodeZero Platform efficiently manages large-scale networks, ensuring seamless deployment and performance even with extensive assets and IP addresses.
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
Anywhere you can put a VM, you can run another concurrent scan.
Director of IT Security at a manufacturing company with 1,001-5,000 employees
 

Stability Issues

Sentiment score
6.6
Microsoft Defender Vulnerability Management is highly stable and reliable, with minimal downtime, despite minor resource-related and compatibility issues.
Sentiment score
8.0
NodeZero Platform offers stable performance without crashes, with occasional long scans due to credential identification, resolved by memory adjustments.
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 needs better false positive reduction, integration, cost management, risk scoring, and documentation for small enterprises.
Improvements in notifications, reporting, integration, and training are needed alongside enhanced testing capabilities and cost efficiency concerns.
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 provides economical tiered pricing with P1 and P2 options, often included in existing bundles.
Enterprise users value NodeZero Platform's cost-efficient pricing and flexibility, finding it cheaper and more extensive than manual pentests.
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
While cheaper than XM Cyber and human pen testers, it's more expensive than vulnerability managers.
CEO at cybovate
 

Valuable Features

Microsoft Defender excels in compliance, real-time assessments, risk prioritization, integration, asset discovery, and continuous monitoring for enhanced security management.
NodeZero Platform by Horizon3.ai automates penetration testing, enhances cybersecurity, and saves time with precise remediation, scalability, and ease of use.
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)
17th
Ranking in Risk-Based Vulnerability Management
6th
Average Rating
8.2
Reviews Sentiment
6.5
Number of Reviews
17
Ranking in other categories
Microsoft Security Suite (19th)
The NodeZero Platform by Ho...
Ranking in Vulnerability Management
8th
Ranking in Advanced Threat Protection (ATP)
11th
Ranking in Risk-Based Vulnerability Management
5th
Average Rating
9.0
Reviews Sentiment
5.9
Number of Reviews
16
Ranking in other categories
Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (1st)
 

Mindshare comparison

As of March 2026, in the Vulnerability Management category, the mindshare of Microsoft Defender Vulnerability Management is 2.2%, down from 3.2% compared to the previous year. The mindshare of The NodeZero Platform by Horizon3.ai is 1.5%, up from 0.9% 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 Management2.2%
Other96.3%
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.
Hussain Z - PeerSpot reviewer
Senior Manager | Manager Security Services at RISK ASSOCIATES
Automated testing has transformed how we deliver fast, consistent security assessments
The key capabilities of the NodeZero platform by Horizon3.ai that I have found most valuable are its speed, scalability, and consistency. It is able to cover a broad scope in a relatively short period of time, which delivers significant efficiency gains when compared with traditional manual testing. It also provides a more consistent outcome, as the process is not influenced by human bias or variability. One of the most valuable features is the ability for security teams to remediate and retest vulnerabilities immediately. The one-click verification capability is particularly effective, as it allows fixes to be validated quickly without the need to rerun the entire assessment. This streamlines the remediation cycle and supports faster confirmation of security improvements. The platform’s real attack capabilities have also helped reduce false positives in the identification of vulnerabilities across our on-premises systems. Because the findings are evidence-based and validated prior to reporting, the results are more reliable and actionable. This enables us to focus our efforts on confirmed security issues that genuinely require attention, rather than spending time investigating theoretical or unverified exposures. The NodeZero platform also strengthens my understanding of potential security threats through its continuously updated capabilities. With new vulnerabilities emerging and being exploited in the wild on a regular basis, it is valuable to have a platform backed by a strong research and development function that continuously updates attack content to reflect the current threat landscape. This makes the platform effective not only as a point-in-time validation tool, but as part of an ongoing and continuous security assurance programme.
report
Use our free recommendation engine to learn which Vulnerability Management solutions are best for your needs.
884,933 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
8%
Government
8%
Comms Service Provider
10%
Manufacturing Company
8%
Computer Software Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise6
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise6
 

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?
Improvements with The NodeZero Platform by Horizon3.ai are already underway; many people mention infrastructure testing is well-handled, but they seek better web application testing, which is curre...
What is your primary use case for Horizon3.ai?
My main use case for The NodeZero Platform by Horizon3.ai is to demo the platform to our channel partners and any end-user customers that they bring us, and also for my own benefit, as we look at o...
What advice do you have for others considering Horizon3.ai?
The way you find a vulnerability with The NodeZero Platform by Horizon3.ai, you can also fix and then verify if that vulnerability has been solved, which is the selling point itself, emphasizing ex...
 

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: March 2026.
884,933 professionals have used our research since 2012.