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Skybox Security Suite vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 1, 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
16th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
Skybox Security Suite
Ranking in Vulnerability Management
30th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
37
Ranking in other categories
Firewall Security Management (6th)
Tenable Nessus
Ranking in Vulnerability Management
1st
Average Rating
8.4
Reviews Sentiment
6.1
Number of Reviews
85
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 0.9%, up from 0.0% compared to the previous year. The mindshare of Skybox Security Suite is 0.6%, up from 0.5% compared to the previous year. The mindshare of Tenable Nessus is 8.4%, down from 12.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus8.4%
Zafran Security0.9%
Skybox Security Suite0.6%
Other90.1%
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.
NenadMijatovic - PeerSpot reviewer
Efficient in vulnerability management, stable and easy to use
Vulnerability management is the most valuable feature because it lets you focus on the most critical vulnerabilities. That's the important thing. Here in Serbia, there are not so many companies that have too many firewalls inside one company. So, they usually don't buy this model for Firewall Assurance unless there is some compliance. So you can prove that your firewalls are compliant. So, that model is not so important here in Serbia. It's for bigger companies. So, they usually buy network assurance to build the model of the network and vulnerability management to focus on the most important vulnerabilities. Moreover, Skybox can collect data for many vendors. From the endpoint protection vendors to the network equipment vendors to other security vendors. So, it supports more than one hundred vendors to collect data from them.
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 are able to see the real risk of a vulnerability on our environment with our security tools."
"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."
"We saw benefits from Zafran Security almost immediately after deploying it."
"The solution's most valuable and unique assets are the vulnerability management and change management solutions because they identify mistakes in the network before implementation which reduces risks."
"Aside from Firewall Assurance, we are using Network Assurance and Change Manager for an overview of the whole network and for documenting requests and the recertification of the ruleset."
"Skybox Security Suite is cost-effective."
"The most valuable feature is the compliance, whether it's access compliance or the configuration compliance, to make sure that all of our devices are configured as they're supposed to be, to limit access as much possible, to follow least-access guidelines."
"Skybox allows organizations to reprioritize the vulnerability they attempt to patch and mitigate, based on the contextual awareness of the network."
"The most valuable features are the rule compliance and the OS vulnerability checks."
"Skybox Security Suite was a very good tool for my organization."
"It shows me a client's or an organization's entire network. I can see everything."
"The most valuable feature is the installation of Tenable which is incredibly easy."
"It allows me to prioritize efforts and utilize effective technical resources."
"We have done code scanning for a long period because as a company, we do DevOps as part of our development life cycle."
"The most valuable feature of Tenable Nessus is the dashboard. They are convenient to use."
"Its initial setup was simple and straightforward."
"Nessus is effortless to integrate."
"Quick assessments, compliance scores, and results are provided without having to do agents."
"The most valuable features of Tenable Nessus include its ease of access and quick usability."
 

Cons

"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."
"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've had issues with licensing where, when they were expiring and I asked for the updated licenses, I would the wrong ones. I think their process needs to be straightened out a little bit - I don't know if they fixed it already, it has been awhile. It wasn't as straightforward as it could have been."
"The vendor's support is terrible."
"The dashboard's UI is not interesting; it is quite normal. It would be better if something more attractive or similar useful information found in AlgoSec was available."
"There are multiple dashboards but no custom dashboard. It would be good to include a custom dashboard so that we can actually choose which field and what kinds of things we want to look at."
"Skybox should improve their UX features by making them easier to use."
"There is room for improvement in pricing. It would be better, especially if a customer bought all four modules."
"The stability is something that is questionable. I don't know whether it is because of the kind of infrastructure we have or because of the product in itself. We're running it on a virtual machine right now. Maybe once a month, or once in every 45 days, it requires a restart because the application fails to connect. So I have to restart the whole Skybox Manager itself, the Skybox server itself, and then connect to it from our Skybox Manager."
"The Network Assurance, which helps to create the network model, is not so rich."
"Online learning could be a bit better."
"They have added a new Tenable Nessus Expert. That is their new product, which caters to the cloud and everything else. I am assuming that the new features and product enhancements are based on that tool set, but we haven't reviewed it yet."
"Technically, it is an excellent and the best solution available in Libya. My only concern is related to its pricing. They are an emerging company in Libya, and they need to put in some effort to provide us with very good prices so that customers can go with the best solution. Chinese companies are getting into the market here, and they're providing very cheap solutions."
"We'd like to see more integration potential within the solution."
"The features are limited when it comes to scanning network devices for vulnerabilities."
"Tenable Nessus is not feasible for a large company."
"One area with room for improvement is instead of there just being a PDF format for output, I'd like the option of an Excel spreadsheet, whereby I could better track remediation efforts and provide reporting off of that."
"The reporting could be improved. The reporting in Rapid7 is much better."
 

Pricing and Cost Advice

Information not available
"Pricing is on the higher side. In terms of licensing, you should buy the complete suite rather than buying only the Change Manager. I think Change Manager with Vulnerability Control is something that would be interesting to look at."
"The pricing is high, and the licensing model needs more flexibility."
"With licensing, the number of network nodes becomes very expensive to the point where you have to rationalize if the tools are warranted anymore."
"When compared with other companies, the license is more costly."
"Fully understand the total cost of ownership. They have gone to a new model where you have to replace the hardware every X amount of years at a very substantial cost and fully understand your intended number of nodes. To operate a firewall, you have to pay two licenses, a firewall node and a network node. If you are a reasonable-sized organization, this gets expensive very quickly."
"The software is expensive. I rate its pricing an eight out of ten."
"I think the price is fair."
"The pricing has increased exorbitantly in the last few years, so now it is questionable. Now, it makes me want to review other products."
"It has a fair cost and very good cost-benefit ratio."
"The solution is worth the cost. It's a good investment."
"We paid about six thousand dollars per license."
"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."
"The product is free."
"The solution has free options."
"The price of the solution is reasonable."
"Tenable Nessus is affordable."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
7%
Healthcare Company
5%
Financial Services Firm
18%
Computer Software Company
13%
Manufacturing Company
11%
Energy/Utilities Company
6%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
10%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise4
Large Enterprise20
By reviewers
Company SizeCount
Small Business37
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 Skybox Security Suite?
Overall, the tool has helped us reduce risks. If any step is missing, it's easier for my team or engineers to identif...
What is your experience regarding pricing and costs for Skybox Security Suite?
From a commercial perspective, AlgoSec is more expensive compared to Skybox Security Suite. Skybox Security Suite is ...
What needs improvement with Skybox Security Suite?
The dashboard's UI is not interesting; it is quite normal. It would be better if something more attractive or similar...
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
ADP, Blue Cross Blue Shield, BT, USAID, Delta Dental, EDF Energy, EMC, HSBC, Johnson & Johnson
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Skybox Security Suite vs. Tenable Nessus and other solutions. Updated: July 2025.
866,218 professionals have used our research since 2012.