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Claroty Platform vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

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
9.4
Reviews Sentiment
8.2
Number of Reviews
5
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (2nd)
Claroty Platform
Ranking in Vulnerability Management
17th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
16
Ranking in other categories
Remote Access (8th), Operational Technology (OT) Security (2nd), Cyber-Physical Systems Protection (2nd)
Tenable Nessus
Ranking in Vulnerability Management
2nd
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
81
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 0.7%, up from 0.0% compared to the previous year. The mindshare of Claroty Platform is 0.6%, up from 0.3% compared to the previous year. The mindshare of Tenable Nessus is 9.4%, down from 13.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management
 

Featured Reviews

Israel Cavazos Landini - PeerSpot reviewer
Weekly insights and risk analysis facilitate informed security decisions
I appreciate the weekly insights Zafran provides, which include critical topics for networks and IT security, allowing us to evaluate which insights apply to our environment. The organization score feature is valuable to keep the leadership team updated on how our infrastructure fares security-wise. The applicable risk level versus base risk level feature is beneficial because prior to Zafran, we only used the base risk level, but now understand that risk depends on the asset itself. Zafran is an excellent tool.
Deevanshi Priya - PeerSpot reviewer
Achieve certifications with progress tracking and potential for enhanced interactivity
I was using Claroty to complete training assigned by my company. The courses were self-paced and helped me get certified in two additional certifications. I plan to use it further as I have a task list for future courses. It was primarily for certification and study materials The feature I like…
HarshBhardiya - PeerSpot reviewer
Provided increased visibility across the organization's servers
The user interface of Tenable Nessus feels outdated and could be more user-friendly. Additionally, the documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional. The reporting feature could be improved by allowing users to create their own templates instead of relying on predefined ones.

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."
"Zafran is an excellent tool."
"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 has become an indispensable tool in our cybersecurity arsenal."
"Customer service is number one and the best."
"I have had a very good experience with the Claroty Platform."
"Claroty is very beneficial for learning and adds value to your resume."
"I appreciate the active coding, deep inspection of packages, and data retrieval. The tool covers information about assets and attack vectors, which I find superior to other tools. Based on alerts, I create reports detailing how an attacker can penetrate the plant, both externally and internally."
"Their SRA solution, the Secure Remote Access solution, is very useful for industrial environments."
"The tool's best feature was the UI and the simplicity it offers."
"I like how the tool does passive and active discovery and threat detection and shows risks, recommendations, and vulnerabilities. It gives risk scores and gathers everything in one place - IP, device name, etc. We can integrate it with other tools for overall network mapping. It's useful for audits, compliance, and monitoring of all devices in the industry. It provides both monitoring and control. We also have SRA for incident response, which lets us search all alerts if we deploy the Claroty Platform."
"I believe the two main aspects where Claroty stands out are their ability to provide a complete platform and their OT-specific focus."
"The solution is easy to understand for users because instructions are included on the platform."
"I have experience with it on my attack stations, and it's pretty good to optimize. Personally, I think Nessus is quite a good product."
"It is easy to deploy and easy to use. Its reporting is good. From this reporting, you can see the pain point in your network, which makes it easy to fix them. It is easy to understand the reports and export them."
"The most valuable feature is the breadth of vulnerabilities that it finds. It's able to find across a lot of different platforms and operating systems. It's also able to combine local testing with network-based testing."
"Nessus is effortless to integrate."
"Nessus is good at finding out what nodes you have in place. It will then provide you a report, by node, of what the vulnerabilities are. It does it quickly and stealthfully."
"Out of the box, the product works well for us, so it's not a tool that we need to customize very much."
"I like its ease of use. It has the script that is pre-built in it, and you just got to know which ones you're looking for."
 

Cons

"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."
"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"There is room for improvement in the user interface to make it more vibrant and interactive, similar to IT tools. Improvements could also be made in the Secure Remote Access (SRA) user interaction and graphical representations of recordings."
"I think the only issue is that the hardware Claroty uses is expensive."
"The Claroty Platform becomes too noisy when it gives numerous CVEs related to vendor match. Sometimes, these CVEs are not actually related to the device in the firmware at the site."
"The product's integration capabilities are an area of concern where improvements are required."
"Introducing an AI chatbot to assist you when you have doubts could be beneficial."
"If more AI features could be included with the Clarity solution, it would be feasible for everybody."
"There are a few protocols that Claroty doesn't currently support."
"There is room for improvement in the user interface to make it more vibrant and interactive, similar to IT tools."
"They need more flexible pricing."
"Nessus' reporting could be more user-friendly."
"One significant drawback we encounter is the tool's tendency to flag patched packages incorrectly. For instance, if a package is patched by Debian maintainers but not updated to a major or minor version, Nessus may still flag it as vulnerable based on its database. This discrepancy leads to false alarms and requires our developers, system admins, and DevOps teams to address them."
"Tenable Nessus could improve by having more steady updates which will reduce the vulnerabilities."
"They should try to create an all-in-one solution."
"Multiple steps to create an actionable plan will be a great addition to Nessus."
"Tenable Nessus could improve the reporting."
"The interface is a little bit clunky, and the reporting is not marvelous. There should be better integration of reporting between instances. Currently, the instance stands alone, and it produces a report. Being able to amalgamate those reports with another instance will be useful."
 

Pricing and Cost Advice

Information not available
"The tool is quite expensive."
"It's a bit expensive compared to other solutions."
"The licensing for physical devices is cheap, but the software version is expensive. The software version costs around 26-28 dollars. I was surprised and even double-checked. It was shocking."
"The solution is worth the cost. It's a good investment."
"The cost is around $4,300 per year. Use is unlimited. You don't pay more if you want to use it for another IP."
"The price of Tenable Nessus is too expensive for each service center."
"The newer tools are quite pricey. There is a case of some fine tuning that can be done in terms of licensing. The IP based licensing that is offered makes the tool very expensive. If they want the IT industry to adopt it, the price should be looked at."
"When comparing the price of Tenable Nessus to other similar solutions, such as Acunetix, Tenable Nessus is not as expensive. It is averagely priced in the market. We pay for the solution annually."
"The price is high for the solution. There are free tools with similar functionality available. The solution cost approximately $3,500."
"The price of the solution is reasonable."
"The is a free version of Tenable Nessus available."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
12%
Healthcare Company
6%
Manufacturing Company
6%
Manufacturing Company
15%
Computer Software Company
14%
Energy/Utilities Company
10%
Financial Services Firm
5%
Educational Organization
26%
Computer Software Company
10%
Financial Services Firm
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Zafran Security?
The current pricing of Zafran Security is fair overall. They were good to work with to accommodate our organization w...
What needs improvement with Zafran Security?
The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvement...
What is your primary use case for Zafran Security?
Zafran Security is helping reduce the amount of critical vulnerabilities in our environments that require prompt reme...
Which solution do you prefer: Nozomi Networks or Claroty Platform?
Nozomi Networks and Claroty Platform are both leading operational technology (OT) security solutions offering a wide ...
What do you like most about Claroty Platform?
The product helps mitigate potential threats, especially if its users have signature rules. The product also provides...
What needs improvement with Claroty Platform?
Regarding the cons of the Claroty Platform, it is not about the deployment, but rather the identification. The Clarot...
How would you choose between Rapid7 InsightVM and Tenable Nessus?
You have full visibility across cloud, network, virtual, and containerized infrastructures with Rapid7 Insight VM. Yo...
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 ...
What do you like most about Tenable Nessus?
We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to addre...
 

Overview

 

Sample Customers

Information Not Available
Rockwell Automation
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Claroty Platform vs. Tenable Nessus and other solutions. Updated: June 2025.
856,873 professionals have used our research since 2012.