Tenable Vulnerability Management vs The NodeZero Platform by Horizon3.ai comparison

Tenable Vulnerability Management vs. The NodeZero Platform by Horizon3.ai

March 2026

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Helped 884,873 peers since 2012

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

7.0

Tenable Vulnerability Management offers cost-effective vulnerability identification, improving processes, visibility, automation, and IT ecosystems despite financial metric uncertainties.

Sentiment score

3.0

NodeZero Platform boosts efficiency, reduces costs, and improves scalability but shows variable returns on investment for users.

No quotes available

For more quotes and insights, download the Tenable Vulnerability Management report

A reduction in remediation time has been seen because it is finding things before they happen.

Brian Burnett

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.

Fabian Brandt

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.

Hussain Z

Senior Manager | Manager Security Services at RISK ASSOCIATES

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

Customer Service

Sentiment score

6.1

Tenable Support is responsive and knowledgeable, though response times and escalation process for complex issues can improve.

Sentiment score

6.6

The NodeZero Platform by Horizon3.ai excels in customer service with swift, effective support, earning high satisfaction ratings.

It needs improvement in response time and addressing feature requests promptly.

Infrastructure patching Manager at a manufacturing company with 1,001-5,000 employees

The technical support of Tenable Vulnerability Management is available 24/7, and whenever we require support, we can get it within five minutes.

For more quotes and insights, download the Tenable Vulnerability Management report

Windows Security Patching Operation III (Cyber Operations) at CBTS

We had used Tenable's expert support services in order to make sure that we run Tenable Vulnerability Management on a continuous basis and are able to utilize their services.

TarunKumar2

Deputy Global Chief Information Security Officer at Nissan Digital

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.

Brian W.

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.

Jon I.

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.

Shaun Hunt

Chief Information Officer at a construction company with 1,001-5,000 employees

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

Scalability Issues

Sentiment score

7.6

Tenable Vulnerability Management scales effectively for various sectors, leveraging cloud-based infrastructure and lightweight agents for seamless deployment.

Sentiment score

7.3

NodeZero Platform efficiently manages large-scale networks, ensuring seamless deployment and performance even with extensive assets and IP addresses.

They can seamlessly scale the number of endpoints from 100 to 1,000,000 in a day.

Infrastructure patching Manager at a manufacturing company with 1,001-5,000 employees

Tenable Vulnerability Management is highly scalable.

For more quotes and insights, download the Tenable Vulnerability Management report

Windows Security Patching Operation III (Cyber Operations) at CBTS

With the growing needs of our company, Tenable Vulnerability Management is able to safely adapt.

TarunKumar2

Deputy Global Chief Information Security Officer at Nissan Digital

We have conducted pen tests in environments with hundreds of thousands of IP addresses without any scalability issues.

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

CEO at cybovate

We currently scan approximately 1,500-2,000 assets and haven't encountered any scaling or throughput issues.

reviewer2759754

Information Security Manager at a non-profit with 51-200 employees

Anywhere you can put a VM, you can run another concurrent scan.

Brian W.

Director of IT Security at a manufacturing company with 1,001-5,000 employees

Stability Issues

Sentiment score

8.1

Tenable Vulnerability Management is praised for its reliable, stable performance, minimal downtime, and longstanding market reputation.

Sentiment score

8.0

NodeZero Platform offers stable performance without crashes, with occasional long scans due to credential identification, resolved by memory adjustments.

I have faced no stability issues with Tenable.

Infrastructure patching Manager at a manufacturing company with 1,001-5,000 employees

The stability is commendable, and I would rate Tenable ten out of ten.

Rishabh-Khanna

Technical Lead at a healthcare company with 10,001+ employees

The stability of Tenable Vulnerability Management is highly reliable.

For more quotes and insights, download the Tenable Vulnerability Management report

Windows Security Patching Operation III (Cyber Operations) at CBTS

We have not encountered any issues on the platform regarding accessibility, performance, or stability.

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

CEO at cybovate

Regarding stability, it has never crashed, and there has not been any lagging from deployment or running.

Brian Burnett

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.

Hussain Z

Senior Manager | Manager Security Services at RISK ASSOCIATES

Room For Improvement

Users criticize Tenable's interface, customization, pricing, support, setup complexity, and suggest improvements for SMB compatibility and user-friendliness.

Improvements in notifications, reporting, integration, and training are needed alongside enhanced testing capabilities and cost efficiency concerns.

They should also accelerate the process of implementing new features upon request.

Infrastructure patching Manager at a manufacturing company with 1,001-5,000 employees

I would suggest HP WebInspect as a better option than Tenable.io.

Rishabh-Khanna

Technical Lead at a healthcare company with 10,001+ employees

Tenable Vulnerability Management is not very effective for real-time risk prioritization for our organization's security strategy.

For more quotes and insights, download the Tenable Vulnerability Management report

Windows Security Patching Operation III (Cyber Operations) at CBTS

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.

reviewer2759754

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.

Laura Halonen

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.

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

CEO at cybovate

Setup Cost

Tenable Vulnerability Management is costly, with prices from $2,300 to $137,000, suitable for enterprises but pricey for SMBs.

Enterprise users value NodeZero Platform's cost-efficient pricing and flexibility, finding it cheaper and more extensive than manual pentests.

Tenable charges around $40 per device, while Rapid7 costs $10 to $15 per device.

For more quotes and insights, download the Tenable Vulnerability Management report

Infrastructure patching Manager at a manufacturing company with 1,001-5,000 employees

I would not say very expensive for Tenable Vulnerability Management; it is not prohibitive, but at the same time, there are some other tools in the marketplace which are offering the same kind of services that Tenable offers, the same kind of features that Tenable has offered at a lesser cost.

TarunKumar2

Deputy Global Chief Information Security Officer at Nissan Digital

The pricing is much more affordable than traditional penetration tests.

Ken Dishon

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.

reviewer2761140

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.

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

CEO at cybovate

Valuable Features

Tenable offers seamless interface, robust scanning, and integration, with AI-driven prioritization and continuous updates for effective vulnerability management.

NodeZero Platform by Horizon3.ai automates penetration testing, enhances cybersecurity, and saves time with precise remediation, scalability, and ease of use.

Tenable enables vulnerability management through potential AI integration that consolidates efforts and resolves multiple vulnerabilities simultaneously.

Infrastructure patching Manager at a manufacturing company with 1,001-5,000 employees

The main benefit of integration with Tenable Vulnerability Management is that there will be no lack of missing vulnerabilities when it comes to the patching environment.

For more quotes and insights, download the Tenable Vulnerability Management report

Windows Security Patching Operation III (Cyber Operations) at CBTS

The best features of Tenable Vulnerability Management are flexibility, breadth and scope, and the fact that their current vulnerabilities come out, and they have tests for them within a day or two.

reviewer2721399

SOC Analyst at a energy/utilities company with 1,001-5,000 employees

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.

Brian W.

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.

reviewer2759754

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.

Timothy Rice

Chief Information Security Officer at a construction company with 1,001-5,000 employees

For more quotes and insights, download the The NodeZero Platform by Horizon3.ai report

Categories and Ranking

Tenable Vulnerability Manag...

Ranking in Vulnerability Management

5th

Ranking in Risk-Based Vulnerability Management

2nd

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

Patch Management (11th)

The NodeZero Platform by Ho...

Ranking in Vulnerability Management

8th

Ranking in Risk-Based Vulnerability Management

5th

Average Rating

9.0

Reviews Sentiment

5.9

Number of Reviews

Ranking in other categories

Advanced Threat Protection (ATP) (11th), Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (1st)

Mindshare comparison

As of March 2026, in the Vulnerability Management category, the mindshare of Tenable Vulnerability Management is 3.1%, down from 6.5% 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
Product	Mindshare (%)
Tenable Vulnerability Management	3.1%
The NodeZero Platform by Horizon3.ai	1.5%
Other	95.4%

Vulnerability Management

Featured Reviews

Have maintained accurate vulnerability scans and gained actionable remediation insights across thousands of servers

Windows Security Patching Operation III (Cyber Operations) at CBTS

Tenable Vulnerability Management agents are very lightweight, and the results we get are very accurate. The solutions they provide to us, assuming if one vulnerability exists, there will be a solution. The resolution they give us in wording will be the best solution. The exploit rates and the reports we get provide a lot of information, making it very easy for us to verify.The main benefit of integration with Tenable Vulnerability Management is that there will be no lack of missing vulnerabilities when it comes to the patching environment. That is one of the key aspects of why we have integrated Tenable to our patching tools. It has a vast capacity of pushing the data to our tools due to its capability and compatibility. That is also one of the reasons why we are using Tenable Vulnerability Management.

Read full review

Hussain Z

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.

Read full review

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884,873 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

13%

Computer Software Company

10%

Manufacturing Company

Government

Comms Service Provider

10%

Manufacturing Company

Computer Software Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	3
Large Enterprise	21

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	2
Large Enterprise	6

Questions from the Community

What's the difference between Tenable Nessus and Tenable.io Vulnerability Management?

Tenable Nessus is a vulnerability assessment solution that is both easy to deploy and easy to manage. The design of the program is such that if a company should desire to handle the installation t...

What do you like most about Tenable.io Vulnerability Management?

The tool has an easy-to-use interface.

What needs improvement with Tenable.io Vulnerability Management?

I don't think that there is any very specific area where enhancements need to happen in Tenable Vulnerability Management's feature sets. The only area which possibly is not a part of the feature, b...

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...

Tenable Nessus vs Tenable Vulnerability Management

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Product Reports

Tenable Vulnerability Management

February 2026

Download Tenable Vulnerability Management product report

The NodeZero Platform by Horizon3.ai

February 2026

The NodeZero Platform by Horizon3.ai report

Download The NodeZero Platform by Horizon3.ai product report

Also Known As

Tenable.io

Horizon3.ai

Overview

Managed in the cloud and powered by Tenable Nessus, Tenable Vulnerability Management (formerly Tenable.io) provides the industry's most comprehensive vulnerability coverage with real-time continuous assessment of your organization. Built-in prioritization, threat intelligence and real-time insight help you understand your exposures and proactively prioritize remediations.

Tenable

NodeZero by Horizon3.ai is an offensive security platform that enables users to adopt an attacker’s perspective, reveal vulnerabilities, and verify defense effectiveness with evidence-backed insights.

NodeZero provides autonomous pentesting, showing how attackers exploit misconfigurations, credentials, and exposures into attack paths. It helps focus on real risks rather than hypothetical ones, integrating seamlessly into existing IT and security workflows to streamline processes. The platform drives risk-based vulnerability management and CTEM by validating vulnerabilities and measuring resilience.

What standout features improve your security?

Autonomous Pentesting at Scale: Executes extensive pentests across broad IT landscapes swiftly.
Hybrid Cloud Coverage: Navigates on-premises and cloud domains to find attack paths.
Proof of Exploitation: Offers evidence for every finding.
Fix Validation: Allows quick retesting to ensure vulnerabilities are resolved.
NodeZero Tripwires: Uses deception tokens for real adversary detection.

What benefits should you expect from reviews?

Reduced Vulnerability Noise: Prioritizes exploitable risks with ServiceNow integration.
Automated Workflows: MCP Server automates processes, reducing bottlenecks and enhancing efficiency.
Immediate Fix Validation: Ensures defenses work during attacks.
Real-Time Resilience Measurement: Helps schedule routine assessments without external help.

NodeZero assists in automated penetration testing and vulnerability management in industries like finance and healthcare. It enhances security processes by complementing or replacing existing solutions, enabling efficient testing, feedback, and control validation.

Horizon3.ai

Sample Customers

Global Payments AU/NZ

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.