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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

"We were able to realize its benefits within 24 to 48 hours."
"I found the initial setup user-friendly."
"The agent and agentless scanning in TotalCloud, particularly the FlexScan method, is incredibly valuable. With traditional scanning approaches, we had to give IP ranges and whitelist IPs. All that is now simplified. FlexScan requires minimal intervention, and after configuration, it automatically collects data and performs necessary scans."
"Qualys TotalCloud has improved our security posture."
"Qualys TotalCloud's most valuable features are its security capabilities that help identify and mitigate risk factors."
"It is a cloud-native app that integrates with both IaaS and SaaS. It seamlessly integrates with other platforms."
"One of the features I appreciate is the ability to generate daily reports without relying on anyone else."
"Qualys TotalCloud has helped us view our risk structure, vulnerabilities, and security posture."
"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 solution can integrate with third parties and meets standard compliance."
"The solution creates vulnerability tickets within the VM profile but should also include them under the Remediation tab so the fixes can be viewed in the ticketing queue."
"Tenable.io Vulnerability Management is an easy-to-use product. I"
"The product offers good performance, with no bugs or glitches, and it doesn't crash or freeze."
"It is very stable, and it is updated periodically by adding new vulnerabilities."
"The best feature of the solution is the amount of visibility it provides of the vulnerabilities."
"The product is easy to use."
"It is easy to manage. Most of the information the tool provided helped to further investigate the vulnerability and its impact."
 

Cons

"Their support could be improved."
"In a future release, I suggest that zero-day vulnerabilities should be predicted in advance using AI technologies. The system is not 100% secure yet, so proactive threat hunting could be enhanced to be more proactive than the current system."
"Qualys TotalCloud needs to enhance its scanning capabilities in the IP domain, as it currently lacks the functionality to resolve IPs to their corresponding domain names."
"Qualys' customer service provides quality answers, but the response time is long, even though it is within the SLA."
"There is room for improvement in the support."
"Qualys TotalCloud needs to improve its accuracy for non-Windows operating systems."
"The support is not up to the mark and seems to be overburdened."
"The vulnerability part is good, but the policy compliance module needs improvement because it involves a lot of manual work. Specifically, the remediation part of the controls requires enhancements."
"Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow."
"One area that they could improve is technical support. Oftentimes, it's not as good as it should be."
"An area of improvement for this solution is being able to customize the dashboard. For example, the dashboard does not allow us to view a previous months vulnerability results alongside current results to make comparisons."
"Tenable Vulnerability Management is not very effective for real-time risk prioritization for our organization's security strategy."
"An area of improvement for this solution is being able to customize the dashboard."
"The stability has room for improvement."
"The solution must provide penetration testing."
"I don't recommend Tenable.io Vulnerability Management for web scanning"
"Tenable.io Vulnerability Management could be improved with an increased number of dashboards and MSSP integration."
 

Pricing and Cost Advice

"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"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."
"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"Qualys TotalCloud is expensive."
"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."
"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."
Information not available
"Tenable.io is not known for being a cheap product."
"There are additional features that can be licensed for an additional cost."
"Tenable charges around $40 per device."
"I would rate the pricing a five out of ten. It is in the middle."
"The cost is determined by the number of endpoints, which is approximately one dollar per endpoint."
"The solution is not too expensive."
"The total cost we pay for this solution is over 45K. This is for a large education organization."
"A yearly payment has to be made toward the solution's licensing costs."
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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.