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Tenable Security Center vs The NodeZero Platform by Horizon3.ai comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 3, 2025

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

Zafran Security
Sponsored
Ranking in Vulnerability Management
18th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (3rd)
Tenable Security Center
Ranking in Vulnerability Management
5th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
56
Ranking in other categories
Cloud Security Posture Management (CSPM) (10th), Risk-Based Vulnerability Management (2nd)
The NodeZero Platform by Ho...
Ranking in Vulnerability Management
9th
Average Rating
9.0
Reviews Sentiment
5.7
Number of Reviews
11
Ranking in other categories
Advanced Threat Protection (ATP) (13th), Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (2nd), Risk-Based Vulnerability Management (5th)
 

Mindshare comparison

As of December 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.1%, up from 0.2% compared to the previous year. The mindshare of Tenable Security Center is 3.2%, down from 6.9% compared to the previous year. The mindshare of The NodeZero Platform by Horizon3.ai is 1.4%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Security Center3.2%
The NodeZero Platform by Horizon3.ai1.4%
Zafran Security1.1%
Other94.3%
Vulnerability Management
 

Featured Reviews

Reviewer6233 - PeerSpot reviewer
Works at a healthcare company with 10,001+ employees
Has become an indispensable tool in our cybersecurity arsenal
While Zafran Security is already a powerful tool, there are areas where it could be further improved to provide even greater value. One key area for enhancement is the searching capabilities within its vulnerabilities module. By incorporating the ability to create Boolean searches, users would gain the ability to apply more complex filters and customize their search criteria. This would greatly enhance the precision and efficiency with which security teams can identify and prioritize vulnerabilities. Having such tailored search capabilities would save time and resources by narrowing down vast lists of vulnerabilities to those that meet specific parameters relevant to our unique risk environment. Additionally, integrating more robust reporting and visualization tools would be advantageous. Enhanced dashboards that offer customizable visual representations of risk configurations and threat landscapes would facilitate better communication with stakeholders, making it easier to explain vulnerabilities and the rationale behind certain security measures. This would also aid in demonstrating the improvements and value derived from existing security investments to leadership and non-technical team members.
OndrejKOVAC - PeerSpot reviewer
Solution engineer at EXPERTience
Empower clients with risk-based vulnerability management through continuous workflow and valuable insights
Tenable Security Center could improve by implementing more dynamic data displays and translating reports into European languages. This is especially relevant in Central Eastern Europe, where clients often require reports in local languages. Additionally, the licensing model could be more flexible for managed security providers, similar to a pay-as-you-go model.
SH
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.

Quotes from Members

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

Pros

"We saw benefits from Zafran Security almost immediately after deploying it."
"With Zafran Security, it integrates with your security controls, allowing you to take that risk score and reduce it based on the controls in place or increase the risk based on different factors, such as if the issue is internet reachable or if there's an exploit in the wild."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Zafran is an excellent tool."
"This product has the best results in terms of the lowest number of false-positives and false-negatives."
"Tenable Security Center is a relatively very good solution, and I don't think it needs improvement; it's a perfect solution."
"The predictive prioritization features are pretty good. They do a lot of research and we trust the research that they do internally. They have knowledge of what's going on with many companies, where we only get a view into what's going on here. So the ability to get best practices out of them as part of this solution, is valuable to us."
"It basically reviews our threat landscape vulnerability."
"I think that this is a good solution for evaluating vulnerability in the network."
"The most valuable features in Tenable SC are scanning and analysis."
"This solution has a much lower rate of false positives compared to competing products."
"Support is knowledgeable."
"I rate the stability of the NodeZero Platform a ten out of ten."
"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."
"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."
"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."
"Penetration testing and scans are useful features."
"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."
"Overall, I'd rate NodeZero at nine to 9.5 out of ten."
"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."
 

Cons

"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"Initially, we were somewhat concerned about the scalability of Zafran due to our large asset count and the substantial amount of information we needed to process."
"I think the ability to have some enhanced reporting capabilities is something they can improve on, as they have good reports but we have asked for some specific reporting enhancements."
"Deploying Tenable.sc is highly complex because it's an on-prem solution, whereas Tenable.io is cloud-based, so you can go live as soon as you log in. Tenable.sc involves significant integration with other on-prem solutions, and the deployment takes about two to three weeks with the help of a system integrator"
"The solution's user interface has some issues."
"The reports and plugins for reports and scans could benefit from enhancements."
"The reports and plugins for reports and scans could benefit from enhancements."
"The solution should include compliance-based scanning."
"We would like to see the inclusion of external IPs and simplified reporting that's easier to deal with"
"The solution is expensive."
"It's important for Tenable to catch up on testing capabilities that are present in solutions like Qualys."
"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 speed of the scans takes some time, but in my opinion, it is not surprising for what it is doing."
"They've added a chatbot which isn't particularly useful, but when it can't answer questions, it forwards messages to human support."
"You need to be cautious about what it scans, as it could potentially cause issues."
"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 only issue we’ve encountered is that sometimes the scans take a long time to complete."
"One of the areas where improvement is needed is in the visibility and reporting for large enterprises."
"I think The NodeZero Platform could improve by leveraging GPUs for password cracking, which would be pretty good."
 

Pricing and Cost Advice

Information not available
"Tenable SC is priced per asset, with the basic solution starting around US$12,000 for 500 assets."
"It is slightly more expensive than other solutions in the same sphere."
"The price of Tenable SC is expensive, we pay approximately €70,000 for the license annually. We have to pay for each IP test. The cost of other solutions is far less, such as Nessus Professional, which is €3,000 annually."
"The pricing is more than Nexpose."
"It is a bit expensive. Everything is included in the license."
"We're able to save because we don't have to employ more staff members to help wit ht he scheduling of the scans, running the reports or sending them out to the systems owners. That alone is a big ROI for us."
"My company needs to make yearly payments towards the licensing costs. The pricing of the solution falls in the mid-range level, so it is not too expensive"
"The licensing costs for this solution are approximately $100,000 US, and I think that covers everything."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
8%
Manufacturing Company
8%
Outsourcing Company
5%
Financial Services Firm
12%
Government
10%
Manufacturing Company
10%
Computer Software Company
9%
Computer Software Company
10%
Manufacturing Company
8%
Educational Organization
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise10
Large Enterprise27
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise1
Large Enterprise4
 

Questions from the Community

What is your experience regarding pricing and costs for Zafran Security?
Since we stood Zafran Security up in our private cloud, we handle the maintenance on our side. As we opted not to use...
What needs improvement with Zafran Security?
In terms of areas for improvement, Zafran Security is doing a really great job as a new and emerging company. Oftenti...
What is your primary use case for Zafran Security?
My use cases for Zafran Security revolve around two primary areas. One is around vulnerability management and priorit...
What do you like most about Tenable SC?
The tool's dashboard and reporting capabilities match our company's needs since we are able to modify the basic view ...
What is your experience regarding pricing and costs for Tenable SC?
The price of Tenable Security Center is not so high; it's relatively a cheaper solution.
What needs improvement with Tenable SC?
We did conduct a long implementation which relates to what I think can be improved about Tenable Security Center. In ...
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.
 

Also Known As

No data available
Tenable.sc, Tenable Unified Security, Tenable SecurityCenter
Horizon3.ai
 

Overview

 

Sample Customers

Information Not Available
IBM, Sempra Energy, Microsoft, Apple, Adidas, Union Pacific
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 Tenable Security Center vs. The NodeZero Platform by Horizon3.ai and other solutions. Updated: December 2025.
879,259 professionals have used our research since 2012.