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Skybox Security Suite vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 25, 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
27th
Average Rating
9.6
Reviews Sentiment
8.1
Number of Reviews
3
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (6th)
Skybox Security Suite
Ranking in Vulnerability Management
41st
Average Rating
7.6
Reviews Sentiment
7.2
Number of Reviews
36
Ranking in other categories
Firewall Security Management (7th)
Tenable Nessus
Ranking in Vulnerability Management
3rd
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 April 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 0.4%. The mindshare of Skybox Security Suite is 0.5%, down from 0.6% compared to the previous year. The mindshare of Tenable Nessus is 10.2%, down from 13.4% 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.
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

"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."
"Zafran is an excellent tool."
"Change Manager is most important because of the impact on each other of a network change or a firewall change. We want to understand this and to know, beforehand, what the impact of a change will be. We are a large network so that is a very important tool."
"I think that compliance checks and policy compliance are the product's good features."
"It shows me a client's or an organization's entire network. I can see everything."
"The product's most valuable feature is vulnerability management."
"The initial setup process was easy."
"The most valuable features of Skybox Security Suite are all the modules that are provided, such as vulnerability assessments and network, and firewall assessments."
"Robust modules can be used for different parts of network security."
"Security review is the most important feature, because it offers a single pane of glass to analyze multiple firewalls."
"It's scalable."
"Tenable Nessus has a good performance, is very user-friendly, and is easy to use."
"A valuable feature of the solution is that it is easy to understand."
"Quick assessments, compliance scores, and results are provided without having to do agents."
"The product's most valuable features are vulnerability and asset management. It can define the rules and validate the configuration."
"The features I personally like include host discovery."
"Nessus gives me a good preview of vulnerabilities and good suggestions for remediation. It's easy to find a description of a given vulnerability and solutions for it."
"The ease of use is the primary valuable feature. This specific version is very straightforward. I like the ability to modify it and configure it based on the different policies."
 

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 cloud site could be better. They should provide some use cases to help users."
"The solution does not support certain devices or vendors in some regions or countries due to regulations."
"The solution needs to move improve its interface to a full web browser version that is more accessible and doesn't require installation for use."
"The solution needs improvement in firewall configuration checks. I would also like to see more configuration checks for Forcepoint and for other non-supported firewalls."
"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."
"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."
"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."
"We'd like to see the solution embrace more user-friendliness."
"The inventory management function in this solution needs improvement."
"Vulnerability recommendations are outdated and not in line with industry standards."
"Pricing is one of the most important features, and it is something that they can improve on."
"The features are limited when it comes to scanning network devices for vulnerabilities."
"I would like to have a management option after the network scanning."
"It would be nice for the professional module to include some of the reports available in the expert module."
"The professional version is not very scalable."
 

Pricing and Cost Advice

Information not available
"The product's pricing is excellent value. In terms of licensing, make sure you understand your network components, all your hops through your network, thoroughly, before you decide on the total cost. If you want to do point-to-point flow analysis and such, you need to have the configuration of all the devices in between point A and point B. A lot of people don't realize all their network components until they start using this product."
"I've seen the pricing of every solution on the market. When you compare apples to apples, where Skybox becomes exceedingly expensive is if you look at it compared to something like FireMon that only does a fraction of what Skybox does. But if you include everything that Skybox does, it becomes way more expensive than the competition, but you're also not comparing apples to apples. If you look at FireMon, and you look at like just the firewall assurance piece, they are fairly comparable and, actually, Skybox comes in a little bit cheaper in some cases, depending on which product you're looking at."
"Skybox Security Suite has indeed helped us reduce costs. The prices of AlgoSec and Skybox Security Suite are approximately 50 percent different. The tool may require special vendor support from abroad, resulting in slightly higher costs. Its pricing is in the middle."
"The solution is based on a subscription model for annual licenses."
"I think for the cost, what we got definitely is worth it. The only caution I would give is that whenever you license for Firewall Assurance at the same time, for some weird reason, you have to get one Network Assurance license, just to manage one firewall. That's a little bit of overkill. But otherwise, in general, the pricing is fairly okay."
"The software is expensive. I rate its pricing an eight out of ten."
"When compared with other companies, the license is more costly."
"I think the price is fair."
"Tenable Nessus needs to be licensed. We own a license for the security center and that license is charged by the number of IP addresses that you can scan. You're allowed to have as many scanners as you want and there's no license for the number of scanners. We have a bunch of Nessus scanners out there, and as long as we're comfortable with staying under that IP address limit, that's really all we have to be concerned about."
"Tenable Nessus is affordable."
"The price of the solution is reasonable."
"The product pricing is dynamic and varies based on the specific needs of each project and customer."
"The price of the solution is reasonable."
"The price of Tenable Nessus could improve, it is expensive."
"Our organization is huge so our license costs $30,000."
"One problem with Tenable is its pricing policy. Optimal results can be achieved with Greenbone Solutions which has much more friendly pricing policies."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
7%
Retailer
6%
Financial Services Firm
18%
Computer Software Company
17%
Manufacturing Company
10%
Energy/Utilities Company
6%
Educational Organization
38%
Computer Software Company
9%
Financial Services Firm
7%
Government
6%
 

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?
I find that the pricing for Zafran aligns well with the comprehensive features it offers. The asset and user-based li...
What needs improvement with Zafran Security?
While Zafran Security is already a powerful tool, there are areas where it could be further improved to provide even ...
What is your primary use case for Zafran Security?
Our primary use case for Zafran involves leveraging it to enhance our vulnerability risk scoring methodology. In toda...
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?
Skybox Security Suite has indeed helped us reduce costs. The prices of AlgoSec and Skybox Security Suite are approxim...
What needs improvement with Skybox Security Suite?
There is room for improvement in the product's user interface. It could be more user-friendly.
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: April 2025.
848,476 professionals have used our research since 2012.