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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
18th
Average Rating
9.4
Reviews Sentiment
8.2
Number of Reviews
5
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (2nd)
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
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 Skybox Security Suite is 0.5%, down from 0.5% 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.
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 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."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"Robust modules can be used for different parts of network security."
"The most valuable features are Firewall Assurance and Vulnerability Control."
"The revalidation and policy recertifications are most valuable."
"We use Network Assurance for network visualisation and troubleshooting."
"Skybox Security Suite was a very good tool for my organization."
"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."
"The solution's simplicity of use is its most valuable feature."
"The most valuable features are the rule compliance and the OS vulnerability checks."
"Makes ransomware checking and OS auditing and implementation relatively easy."
"Its initial setup was simple and straightforward."
"Tenable Nessus is cheap and flexible."
"It also has an executive report where you don't have to provide the client all the detail for them to sift though. But if they wish to dig through the detail they can."
"It's scalable."
"The most valuable feature of Tenable Nessus is the self-updating engine."
"The solution can scale well."
"It gives you an unlimited IP scan."
 

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."
"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."
"Skybox Security Suite's attack surface management feature needs improvement."
"There is room for improvement in the technical support."
"The most recent update was not tested with all of the vendors before it was released, so some of the features are misbehaving."
"The solution does not support certain devices or vendors in some regions or countries due to regulations."
"The solution was quite technical. It would be easier to manage if the solution was more specific about aspects of the solution and provided more advisory around how to use it effectively. It would help users a lot if they were more clear about everything."
"The vendor's support is terrible."
"Reporting. A lot of the reports, out of the box, are limited to a certain number of either configuration violations or access rule violations. So when you first set up a new firewall to be monitored by Skybox, you don't get a real full report. You have to really tweak it to get everything."
"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."
"EQA's and dashboards should be addressed in the next release."
"Online learning could be a bit better."
"Multiple user access would be an area for improvement from a user-access perspective. A role-based access control feature would be great because at present, there is a limitation with only one account. If that account gets compromised or gets locked, then we will encounter problems."
"I would like to see an improvement in the ranking of high, medium and low vulnerability."
"Tenable Nessus could improve by having more steady updates which will reduce the vulnerabilities."
"The product must be more comprehensive."
"The price and scalability of the solution could improve."
 

Pricing and Cost Advice

Information not available
"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 pricing is high, and the licensing model needs more flexibility."
"The software is expensive. I rate its pricing an eight out of ten."
"The price of the Skybox Security Suite can be expensive."
"It's expensive."
"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."
"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."
"Skybox comes with extra licenses and has a change management license. The licenses are expensive, but they come with extra value."
"The solution has free options."
"We paid about six thousand dollars per license."
"I rate the product's price seven or eight on a scale of one to ten, where one is low price and ten is high price."
"Nowadays, your vulnerability applications are going to be kind of pricey because lots of them, including Rapid7, are based upon a base price, but then they add in the nodes. That's where they get you. If you're a big network, obviously, you need to scan everything. Therefore, it's going to be costly. The risk and insurance money associated with having ransomware on my networks is going to cost me more money, time, and marketing than the price of the tool. That's why I'm speaking only as an information security officer to security operations. This is the tool that is there in my toolbox to say whether we vulnerable or not. At this point, I don't care about how much it costs my company to have it because if I wasn't able to report it and we got ransomware, then who cares? I'm probably going to be out of business because it happened. That's why I don't care about the price. I have it, and I could use it effectively and do my report. At the end of the day, even if we get ransomware, as long as I reported it, followed my protocol, and put in the change, irrespective of whether it was ignored or denied, I did my job."
"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."
"Our organization is huge so our license costs $30,000."
"The product pricing is dynamic and varies based on the specific needs of each project and customer."
"The price is reasonable."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
12%
Healthcare Company
6%
Manufacturing Company
6%
Financial Services Firm
19%
Computer Software Company
17%
Manufacturing Company
9%
Energy/Utilities Company
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...
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: June 2025.
856,873 professionals have used our research since 2012.