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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
16th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
Claroty Platform
Ranking in Vulnerability Management
18th
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
1st
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
86
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.0%, up from 0.1% compared to the previous year. The mindshare of Claroty Platform is 0.8%, up from 0.4% compared to the previous year. The mindshare of Tenable Nessus is 8.0%, down from 12.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus8.0%
Zafran Security1.0%
Claroty Platform0.8%
Other90.2%
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

"Zafran is an excellent tool."
"We saw benefits from Zafran Security almost immediately after deploying it."
"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."
"The solution's most valuable feature is the map, which shows everything that is connected and communicates with each other."
"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."
"The platform ensures security without imposing significant delays."
"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."
"The main advantage of Claroty, when compared to its competitors, is integrated secure remote access."
"Claroty identifies all vulnerabilities available in our environment."
"I have had a very good experience with 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."
"The most valuable aspect of this solution is that you receive the entire report, which details the breakdown, especially in terms of critical, high, low, and mediums."
"The solution can scale well."
"Among the most valuable features are scanning for vulnerabilities and the reporting. The reporting templates are okay. I like that I can see all the hosts with different vulnerabilities."
"Tenable integrates well with other solutions such as SIEM and batch management."
"I am impressed with the tool's vulnerability scanning."
"Security is the key number because it can start to scan with a few clicks instead of credits, which is a bit complicated. So simplicity is the first advantage. Then the generated reports are well done and easy to present to management. The quality of the scan is quite good in detecting the severity. The solution has simplicity. Also, it has frequent updates so that is also a valuable feature."
"It provides multiple recommendations towards the remedy of vulnerabilities."
 

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."
"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"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."
"There are a few protocols that Claroty doesn't currently support."
"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."
"There should be AI security solutions implemented."
"If more AI features could be included with the Clarity solution, it would be feasible for everybody."
"Claroty Platform could improve the pricing to get more acceptability in the market."
"I've reported four bugs and three feature requests so far. The main area of focus should be on how attacks are detected. The attack vector information needs to be more detailed. For example, it's not enough to state that an SMB v1 version open can lead to a WannaCry attack. A more detailed explanation should help clients understand the various ways an attack could occur."
"There is room for improvement in the user interface to make it more vibrant and interactive, similar to IT tools."
"The product's integration capabilities are an area of concern where improvements are required."
"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."
"Some things in the user interface could be better. The user interface could allow more adjustments to plugins. The price could also be better."
"It would be better if they had application-level support for mobile devices. They don't have anything to scan mobile devices. Tenable Nessus doesn't have a mobile application vulnerability assessment. I also have issues with the false positive rates. The product has limited features."
"I would like to see an improvement in the ranking of high, medium and low vulnerability."
"The reports should be improved in Tenable Nessus. For example, when you are auditing compliance with CIS standards. It provides very poor reports."
"The product must be more comprehensive."
"They should try to create an all-in-one solution."
"The inventory management function in this solution needs improvement."
 

Pricing and Cost Advice

Information not available
"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 tool is quite expensive."
"It's a bit expensive compared to other solutions."
"While Tenable Nessus is a good enterprise solution, the high price would likely make it prohibitive to smaller organizations."
"Cost-wise, it's an affordable tool."
"Our organization is huge so our license costs $30,000."
"The solution has a single price for unlimited assets."
"The solution is expensive."
"The solution has free options."
"We incurred a single cost for a perpetual license, although I cannot comment on the price as this is above my management level."
"Tenable Nessus is affordable."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
8%
Government
6%
Manufacturing Company
15%
Computer Software Company
11%
Energy/Utilities Company
9%
Financial Services Firm
5%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
10%
Government
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise11
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise35
 

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 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...
What is your primary use case for Claroty Platform?
My clients are using the Claroty Platform for asset identification, finding CVEs and threat intel. I am aware of the ...
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: September 2025.
867,349 professionals have used our research since 2012.