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Nucleus Security vs Tenable Vulnerability Management comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 23, 2026

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

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
11th
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
39
Ranking in other categories
Container Security (13th), Cloud Workload Protection Platforms (CWPP) (9th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (1st), Cloud-Native Application Protection Platforms (CNAPP) (8th)
Nucleus Security
Ranking in Vulnerability Management
41st
Average Rating
7.0
Reviews Sentiment
6.9
Number of Reviews
1
Ranking in other categories
Application Security Tools (27th), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (13th)
Tenable Vulnerability Manag...
Ranking in Vulnerability Management
8th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
45
Ranking in other categories
Patch Management (14th), Risk-Based Vulnerability Management (4th)
 

Mindshare comparison

As of May 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.0%, up from 0.9% compared to the previous year. The mindshare of Nucleus Security is 0.9%, up from 0.8% compared to the previous year. The mindshare of Tenable Vulnerability Management is 2.9%, down from 5.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Tenable Vulnerability Management2.9%
Qualys TotalCloud1.0%
Nucleus Security0.9%
Other95.2%
Vulnerability Management
 

Featured Reviews

RO
IT Security Expert at Alior Bank S.A.
Unified risk scoring has improved our cloud visibility and simplifies remediation priorities
Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.
reviewer2808414 - PeerSpot reviewer
Health Care Specialist at a healthcare company with 11-50 employees
Improved radiation safety and compliance has supported patient care but daily workflows still need refinement
I think it can be improved by making it more practical, integrated, and easier for teams to apply in real-world workflow from a healthcare perspective. The main improvements I can see right now are better user training with real-case scenarios rather than only theory, and clear and simple protocols for day-to-day operations. Strong integration between safety compliance and documentation systems would help significantly in practice for the healthcare field, which is a niche field. The biggest gain would come from making security processes easier to follow consistently, especially in busy environments where teams need to be aware of clarity and really need to rely on the documentation they are using.I chose a rating of seven because it offers strong value in safety, risk reduction, and compliance, especially in healthcare. However, there is still room for improvement in usability and day-to-day integration. Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow.
Chethan Gowda - PeerSpot reviewer
Windows Security Patching Operation III (Cyber Operations) at CBTS
Have maintained accurate vulnerability scans and gained actionable remediation insights across thousands of servers
Tenable Vulnerability Management agents are very lightweight, and the results we get are very accurate. The solutions they provide to us, assuming if one vulnerability exists, there will be a solution. The resolution they give us in wording will be the best solution. The exploit rates and the reports we get provide a lot of information, making it very easy for us to verify.The main benefit of integration with Tenable Vulnerability Management is that there will be no lack of missing vulnerabilities when it comes to the patching environment. That is one of the key aspects of why we have integrated Tenable to our patching tools. It has a vast capacity of pushing the data to our tools due to its capability and compatibility. That is also one of the reasons why we are using Tenable Vulnerability Management.

Quotes from Members

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

Pros

"Its dashboards are brilliant. It provides in-depth insights."
"The most valuable feature of Qualys TotalCloud is the visibility it provides."
"I would definitely recommend Qualys TotalCloud to other customers."
"Qualys TotalCloud's most valuable features are its security capabilities that help identify and mitigate risk factors."
"I appreciate Qualys TotalCloud's ability to onboard any type of device with ease, including containers."
"Qualys TotalCloud is an excellent platform, and the beauty of the platform is that we can get all the vulnerabilities, see all the reports in a single dashboard, view them segregated, and easily learn about critical, high, and medium findings with appropriately provided remediation steps."
"The most valuable feature is the consolidated information that it provides from various platforms."
"Qualys TotalCloud fulfills all these needs."
"We have seen clear compliance and risk control outcomes more than other operational metrics, including fewer process gaps during documentation and safety checks, strong consistency in following protocols for handling, traceability, and staff awareness, better audit readiness, a lower chance of procedure errors, and faster escalation when something appears out of standard, which is very important for us in the healthcare sector."
"The vulnerability scanning has been great as it's helped us to define some issues around the updates of some things, and some items surrounding services we need to take care of."
"The initial setup is straightforward so long as your infrastructure, components, and networks are in place."
"The stability is excellent."
"The stability is commendable, and I would rate Tenable ten out of ten."
"The initial setup is not complex."
"They are on a good trajectory as a company and investing in R&D in the right ways."
"Tenable Vulnerability Management agents are very lightweight, and the results we get are very accurate."
"The most valuable feature for me is container scanning because I am interested in CICD security."
 

Cons

"The onboarding process is a bit difficult. In the initial phase, it is very difficult to understand the features, what the dashboard contains, and what criteria they are using."
"A feature improvement could be the inclusion of Windows OS support for container security, as it is currently only supported for Linux."
"To improve the user experience, reporting could be simplified for better comprehension by end users and project managers, facilitating issue resolution."
"Qualys's ticketing system can be confusing when assigning tasks to individuals, and support could be improved by offering instant call solutions with engineers in addition to ticket replies."
"The support is not up to the mark and seems to be overburdened."
"With the growing integration of AI, I would like Qualys to enhance its service offerings to better accommodate AI-related risks."
"There should be improvement from a dashboard perspective when collecting and showcasing data to lead management."
"I think Qualys TotalCloud needs to improve its handling of zero-day vulnerabilities and supply chain management because modern ransomware attacks not only target prime critical infrastructures but also the supply chain system."
"Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow."
"Tenable could improve visibility into assets, including automated asset tagging. You should be able to automatically tag assets based on location, function, ownership, etc. That would help us because we spend a lot of time identifying and tagging assets by hand."
"The stability has room for improvement."
"The solution seems to focus too much on enterprises, and they really need a product that works for SMBs."
"Technical support requires constant follow up and that is an issue. I rate support a two out of ten."
"The interface could be improved; right now it's running on two interfaces simultaneously."
"One area that they could improve is technical support. Oftentimes, it's not as good as it should be."
"It's not a user-friendly tool since it has a complicated interface."
"Tenable.io Vulnerability Management could be improved with an increased number of dashboards and MSSP integration."
 

Pricing and Cost Advice

"The cost is high, but it meets our organizational needs."
"Qualys TotalCloud offers cost-effective licensing flexibility."
"I am not sure about the pricing. From what I understand, it is a bit on the higher side, but I do not have the exact numbers."
"While Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive and may soon be considered overpriced."
"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."
"Its price seems higher compared to other tools, but it is worth it. If they could adjust the pricing and make it comparable with other tools, that would be great."
"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."
"TotalCloud's price is about right where I would expect it to be."
Information not available
"There are additional features that can be licensed for an additional cost."
"The product costs us around $137,000 annually for 4000 to 5000 assets."
"Tenable.io Vulnerability Management's pricing solution model isn't great."
"Tenable.io is not known for being a cheap product."
"Yearly payments are to be made toward the licensing cost of the product. It is neither a cheap nor an expensive product."
"A yearly payment has to be made toward the solution's licensing costs."
"The cost is determined by the number of endpoints, which is approximately one dollar per endpoint."
"Tenable charges around $40 per device."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Computer Software Company
9%
Manufacturing Company
9%
Government
8%
Computer Software Company
14%
Financial Services Firm
12%
Construction Company
8%
Comms Service Provider
7%
Financial Services Firm
14%
Manufacturing Company
10%
Computer Software Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise3
Large Enterprise28
No data available
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise3
Large Enterprise21
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...
What is your primary use case for Qualys TotalCloud?
Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...
What is your experience regarding pricing and costs for Nucleus Security?
I have a good experience with that, so we don't have much problem dealing with pricing, setup, and licensing.
What needs improvement with Nucleus Security?
I think it can be improved by making it more practical, integrated, and easier for teams to apply in real-world workf...
What is your primary use case for Nucleus Security?
I have been using Nucleus Security for the past few years in my company, particularly in the healthcare field.I use N...
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 needs improvement with Tenable.io Vulnerability Management?
I don't think that there is any very specific area where enhancements need to happen in Tenable Vulnerability Managem...
What advice do you have for others considering Tenable.io Vulnerability Management?
I use Tenable Vulnerability Management, and that is the tool that I have primary experience with. Apart from zero-day...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
Tenable.io
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
Global Payments AU/NZ
Find out what your peers are saying about Nucleus Security vs. Tenable Vulnerability Management and other solutions. Updated: May 2026.
896,099 professionals have used our research since 2012.