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Tenable Nessus vs Vulcan Cyber 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)
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
Vulcan Cyber
Ranking in Vulnerability Management
20th
Average Rating
7.4
Reviews Sentiment
7.1
Number of Reviews
11
Ranking in other categories
Risk-Based Vulnerability Management (7th), Cloud Security Remediation (1st)
 

Mindshare comparison

As of October 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.1%, up from 0.1% compared to the previous year. The mindshare of Tenable Nessus is 7.7%, down from 11.9% compared to the previous year. The mindshare of Vulcan Cyber is 0.7%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus7.7%
Zafran Security1.1%
Vulcan Cyber0.7%
Other90.5%
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.
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The user interface of Tenable Nessus feels outdated and could be more user-friendly.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.
Shreevinayak Deshpande - PeerSpot reviewer
Makes vulnerability management efficient with a single pane of glass and daily report generation
There are areas for improvement. Initially, when onboarding Vulcan Cyber, the setup and configuration was more complex than expected with a user-friendly approach. This aspect can be enhanced. An important area is performance and speed, as Vulcan Cyber often lacks speed when exporting reports. The team might have to work on scaling up servers. When we click on a vulnerability, it takes ten seconds to pop up a window and show the entire content. Instead of that, they can put a down arrow, and all the details should be shown on clicking the arrow. This will prevent that ten-second delay. Another area for improvement is providing support and documentation for their tool. Users should have access to easy-to-understand trial documentation for reference.

Quotes from Members

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

Pros

"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"Zafran is an excellent tool."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"We saw benefits from Zafran Security almost immediately after deploying it."
"The automatic scanner and scheduler are pretty cool."
"I like this solution because it is complete. It can scan and check many types of vulnerabilities. It can also check for compliance."
"It's scalable."
"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."
"The most valuable feature of Tenable Nessus is website scanning."
"The most valuable features of Tenable Nessus include its ease of access and quick usability."
"The trial version is very good for testing whether it will suit your needs."
"It notifies us of vulnerabilities as they arise, allowing us to respond quickly without manual intervention."
"It is very good when it comes to ingesting information from different sources and then displaying this information in an easy-to-use platform."
"Vulcan enables us to automate tickets from multiple scanners. It has lots of analytics options that show us charts and allow us to view the statuses in different waves. The dashboard is nice because it's highly informative about the big picture."
"Vulcan Cyber is a very good tool."
"The most notable aspects include having prioritization capabilities and custom scripts."
"One of the features that I find valuable is the ability to bifurcate the report according to the many options available."
"I was part of the initial deployment. It was pretty easy. To fully deploy, it took about three or four weeks."
"Vulcan Cyber gives the remediation team the focus points."
"The interface of Vulcan Cyber is intuitive with a lot of information about vulnerabilities, which helps in classifying and analyzing threats."
 

Cons

"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."
"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 reporting is a bit cumbersome."
"You can scale Nessus to the extent that you can afford it. You need to have a license for every device you scan. As long as you can afford the increased costs, you won't have a problem scaling it."
"The tool needs to upgrade asset tracking."
"Multiple steps to create an actionable plan will be a great addition to Nessus."
"Tenable Nessus application device assessment is one of the top tools. However, in the application security assessment, there are other tools that provide better, and more accurate findings."
"There should be a possibility to install agents on scanned machines. Tenable IO provides the capability of using local agents to check local problems, but this feature is not there in Tenable Nessus Professional. It would be nice to have something similar in Tenable Nessus Professional. We should have the capability to use local agents installed on the machines to locally check a problem."
"Tenable Nessus could improve the reporting by adding some dashboards. The reports are a hassle at this time. Tenable.io has more detailed reports. Having a better dashboard that can show where the vulnerabilities are and be categorized would be helpful. We then could present them to upper management for a deep overview of our network posture which they do not see."
"They need more flexible pricing."
"If there was a way for me to connect to the vendor directly from the application, it would be helpful."
"It would be extremely helpful to have a community group around the product."
"We've faced situations where we required support on a Friday, and support wasn't available."
"We have the highest privilege in the application, and at least for members with the highest privilege, having the capability to reach out to the vendor directly from the application would be beneficial."
"Mainly, what I would like from them is more maintenance of the different connectors they have in the platform."
"The product helps, but the reporting relies heavily on Power BI. It is limited to graphical views and requires additional filtering, posing operational challenges."
"Improvements are needed in providing more concise details on how to apply remedies for particular vulnerabilities. I would like to have more information about the remedies for particular vulnerabilities so that we do not have to go through the CVE numbers and relevant pages to check for a particular vulnerability and its remedy."
"Their support is good, but there are some flaws as well. We often encounter some issues that are not applicable to Vulcan Cyber as a whole; they apply only to us because we have customized requirements. In such cases, when we reach out with specific data and issues to their support team, they sometimes come back and say that the issues have been resolved. However, when we test to see if they have been remediated, they are still there."
 

Pricing and Cost Advice

Information not available
"In general, it is extremely expensive."
"The price of the solution is reasonable."
"Our organization is huge so our license costs $30,000."
"The price of Tenable Nessus is too expensive for each service center."
"The solution has free options."
"The solution has a single price for unlimited assets."
"The price of the solution is reasonable."
"Its price is high for Libya. The companies here in Libya don't have the awareness of and a good budget for cybersecurity services. If you want them to go for a product, you need to provide something different. This differentiation is related to the price. They should give about 40% to 45% discount per person on the current cost."
"Our leadership knows better about the pricing. As per my knowledge, which might not be accurate, its price can come down."
"Its pricing is quite fair compared to what is out there in the market, especially compared to the tool from Microsoft. It is a SaaS platform that has an annual cost, so it is something that is already used by many companies. It is quite affordable."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
12%
Financial Services Firm
10%
Government
10%
Manufacturing Company
10%
Computer Software Company
29%
Financial Services Firm
9%
Manufacturing Company
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise35
By reviewers
Company SizeCount
Small Business1
Large Enterprise10
 

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...
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...
What is your experience regarding pricing and costs for Vulcan Cyber?
I don't deal with the pricing of the solution. I'm not a part of that department.
What needs improvement with Vulcan Cyber?
One area for improvement is clarity in the results column of vulnerability reports. Currently, the path where the vul...
What is your primary use case for Vulcan Cyber?
I have been using the solution for more than six months. Essentially, any reporting I do for our internal Internet as...
 

Interactive Demo

Demo not available
Demo not available
 

Overview

 

Sample Customers

Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Stitch Fix, Mandiant, Wealthsimple, Entrust, Anaplan, Deloitte, Origami Risk, Verana Health
Find out what your peers are saying about Tenable Nessus vs. Vulcan Cyber and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.