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

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

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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

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

11th

Ranking in Risk-Based Vulnerability Management

5th

Average Rating

9.0

Reviews Sentiment

5.7

Number of Reviews

Ranking in other categories

Advanced Threat Protection (ATP) (12th), Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (1st)

Mindshare comparison

As of February 2026, in the Vulnerability Management category, the mindshare of Tenable Vulnerability Management is 3.2%, down from 6.8% 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 Market Share Distribution
Product	Market Share (%)
Tenable Vulnerability Management	3.2%
The NodeZero Platform by Horizon3.ai	1.5%
Other	95.3%

Vulnerability Management

Featured Reviews

Chethan Gowda

Windows Security Patching Operation III (Cyber Operations) at CBTS

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

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.

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Shaun Hunt

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

Has unified our IT teams by providing clear visibility into network vulnerabilities and accelerated remediation with real-world attack testing

One of the things that we've shared with Horizon is just the reporting. They've made a lot of changes over time, but when examining computers, most average normal people don't look at a computer and identify it as 114.82.117.180. They identify it as 'the printer for accounting.' When many of the reports give the very detailed technical IP address or serial number, that's really not helpful for anyone other than the person, the hands-on person that's trying to remediate it. All the managers, all the leaders, having information in that format isn't helpful. Being able to have information about what those devices are would be very helpful. There's a technical reason they can't just have an easy button because some people have really complicated networks. When examining things for the average company, the average executive, that 114 number, there's only one of those. But if examining an AT&T or a Walmart, it isn't unique. They haven't solved that problem. But for the 90% of companies, being able to have just a human readable name for all devices on your network in all of the reports all of the time would be the most beneficial.

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Quotes from Members

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

Pros

"It is pretty stable. I would rate it nine or maybe ten."

"Tenable is user-friendly and excels in reporting."

"The best feature of the solution is the amount of visibility it provides of the vulnerabilities."

"It's a recommended tool for penetration testers because it's effective for that purpose."

"The interface is fine."

"It is very stable, and it is updated periodically by adding new vulnerabilities."

"One of the most valuable features of Tenable.io Vulnerability Management is its exportability, which allows us to conduct risk assessments efficiently."

"Tenable is user-friendly and excels in reporting."

More Tenable Vulnerability Management pros

"For us, The NodeZero Platform is literally the single best security solution we have because the way that it works is we're able to scan every part of our network, both internally and externally, and then get completely actionable feedback that doesn't matter if it's for an application developer or a network admin."

"After the third party conducts the pen test, The NodeZero Platform is run, and it finds the same things they found and sometimes a few other things that they did not even identify."

"Overall, I'd rate NodeZero at nine to 9.5 out of ten."

"We experienced a threat that could have severely crippled us, but we were able to shut it down before it escalated, thanks to internal vulnerability testing and addressing critical vulnerabilities using their tool."

"I rate the stability of the NodeZero Platform a ten out of ten."

"My favorite feature about The NodeZero Platform is that it's autonomous, and it truly delivers on that promise—it can be set and forgotten while it performs its tasks, and it does exactly what it claims to do."

"The NodeZero Platform is amazing; what I love most about it is that it's automated and comparable to the manual pen testing we did with a third-party company, but with the added benefit of unlimited retesting to validate fixes."

"The NodeZero Platform's real attack capabilities help identify vulnerabilities on my on-premise systems by adding an element of validation and offensive security testing on top of known vulnerabilities. The feature that allows security teams to fix and retest vulnerabilities instantly is very useful, even though it may not happen literally 'instantly.' It's a necessary tool for any organization to understand whether vulnerabilities are genuinely exploitable by attackers. With its near-real-time testing capabilities, it's an essential part of any security portfolio."

More The NodeZero Platform by Horizon3.ai pros

Cons

"There needs to be better dashboard navigation."

"It can have more integration."

"Another area of improvement is customer service and support. Tenable needs to include support in the pricing/license. Currently, they push clients to get support from partners or channel distributors, who often charge a lot."

"The solution must be promoted more in the market."

"I would rate it four out of ten. For startups, freelancers, or companies between startup and midsize, Tenable is recommended. However, for midsize or enterprise-level companies, I would not prefer it."

"AI integration for reporting in Tenable would be beneficial."

"They need to have more dependable and faster support."

"An area of improvement for this solution is being able to customize the dashboard. For example, the dashboard does not allow us to view a previous months vulnerability results alongside current results to make comparisons."

More Tenable Vulnerability Management cons

"I encountered challenges with patch management, as we struggled to test and implement patches due to time constraints. This led to our patch management process being ineffective."

"The speed of the scans takes some time, but in my opinion, it is not surprising for what it is doing."

"You need to be cautious about what it scans, as it could potentially cause issues."

"They've added a chatbot which isn't particularly useful, but when it can't answer questions, it forwards messages to human support."

"The areas for improvement for The NodeZero Platform involve integration and automation. It would be beneficial if it could integrate directly with vulnerability management tools that would allow the platform to automatically import data, identify vulnerable systems, and test targets immediately, potentially even enabling automated feedback loops for rescanning since the process is currently manual."

"The reports are quite useless."

"Sometimes even their support doesn't know why we're seeing certain issues."

"The only issue we’ve encountered is that sometimes the scans take a long time to complete."

More The NodeZero Platform by Horizon3.ai cons

Pricing and Cost Advice

"Tenable.io is not known for being a cheap product."

"Yearly payments are to be made toward the licensing cost of the product. It is neither a cheap nor an expensive product."

"The tool is reasonably priced."

"The cost is determined by the number of endpoints, which is approximately one dollar per endpoint."

"Tenable.io Vulnerability Management's pricing solution model isn't great."

"The product costs us around $137,000 annually for 4000 to 5000 assets."

"On a scale of one to ten, where one is low, and ten is high price, I rate the pricing an eight. So, it is a pretty expensive solution."

"Tenable charges around $40 per device."

More Tenable Vulnerability Management pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

14%

Computer Software Company

11%

Manufacturing Company

Government

Computer Software Company

Manufacturing Company

Comms Service Provider

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	6
Midsize Enterprise	1
Large Enterprise	4

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 do you like most about Horizon3.ai?

Penetration testing and scans are useful features.

What needs improvement with Horizon3.ai?

I think The NodeZero Platform could improve by leveraging GPUs for password cracking, which would be pretty good.

What is your primary use case for Horizon3.ai?

We use The NodeZero Platform for control validation and we are also looking for the likelihood of vulnerabilities.

Tenable Nessus vs Tenable Vulnerability Management

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Product Reports

Tenable Vulnerability Management

Download Tenable Vulnerability Management product report

The NodeZero Platform by Horizon3.ai

Download The NodeZero Platform by Horizon3.ai product report

The NodeZero Platform by Horizon3.ai 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.

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