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Nucleus Security vs Tenable Security Center 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 Security Center
Ranking in Vulnerability Management
6th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
56
Ranking in other categories
Cloud Security Posture Management (CSPM) (11th), Risk-Based Vulnerability Management (3rd)
 

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.
reviewer1534134 - PeerSpot reviewer
Head of Information Security at a consultancy with 1,001-5,000 employees
Centralized analytics have strengthened patch visibility and support efficient regulatory reporting
From my experience, I assess the product's analytics capabilities as successful. It helped us significantly with patching and managing the risk of the patching process across all our environments, including network devices with Windows and Unix systems. The product covered several environments and gave us exactly what we needed in our environment. Tenable Security Center's centralized platform helped with risk assessment and management across our IT environments. It covered the patching process, and we previously faced many issues regarding how to patch different environments, how to monitor the patching process, and whether it was successful or not. We obtained good reports showing when patches were closed and the details of each patch, including who executed it and everything related to the patching process until it was closed. This gave us good details about the process which helped us significantly in our reporting and even in audits, whether internal or external. We learned how to close audit issues safely and successfully. We used the dashboards for real-time threat insights and extracted several dashboards from Tenable Security Center. We use these dashboards in our cybersecurity dashboard and committees that we have. These dashboards are part of our committees, especially the cybersecurity committee and other committees that we attend.

Quotes from Members

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

Pros

"CSPM is currently the most used feature, and we are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs."
"Its excellent graphical interface makes the scanning process simple."
"Qualys TotalCloud provides a single, prioritized view based on requirements such as identifying the most vulnerable assets and calculating the average time to remediate vulnerabilities."
"The vulnerability management feature is the one I like the most because it provides a clear picture of all vulnerabilities."
"One of Qualys' best features is its categorization, which allows us to see the types of assets, their security postures, and the AI-powered version of the tool."
"Qualys TotalCloud provides a single, prioritized view of risk, reducing the workload associated with consolidating multiple sources for risk prioritization."
"The best feature would be the ability to create policies. It is easy to control and update policies as required."
"Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution."
"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."
"Very customizable with a lot of templates."
"The installation is very straightforward; it's the easiest solution that I have ever implemented and was completed in no more than one or two minutes."
"Tenable.sc is user-friendly."
"The solution is one of the most, if not the most, stable product available."
"The solution is very intuitive and the dashboards are simple to use."
"Overall, I rate the solution 9.8 out of 10."
"The most valuable feature is the automatic and periodic management of security scans, along with the ability to consolidate all information into a single dashboard."
"Their overall cost of service is pretty good."
 

Cons

"Two areas for improvement in Qualys TotalCloud are the speed of the public cloud platform and vulnerability detection."
"Areas that need improvement in every solution include the remediation part. The remediation steps should be simple enough for everyone to understand."
"The main area needing improvement is integration. Although the team is strengthening TotalCloud, integration can be enhanced with SIEM, SOAR, ITSM, and other sources."
"Regarding technical support from Qualys, they respond, but the response time can be too long. Sometimes we need to wait weeks for solutions to simple questions."
"The downside is only in container security, but it has not been a long time since they introduced these models."
"Qualys TotalCloud has the potential to improve by integrating a hybrid platform for comprehensive management of both on-premises and cloud infrastructures."
"The support process is inefficient due to the excessive number of replies required when submitting tickets."
"TotalCloud could improve the classification of vulnerabilities. Specifically, it could enhance the categorization of what aspects fall under patches resolved by OS or software updates and what pertains to configuration adjustments."
"Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow."
"The reports and plugins for reports and scans could benefit from enhancements."
"The solution is expensive."
"Tenable SC could be improved with additional connectivity to external company postures and the capability of managing and sustaining agents in the systems directly without additional platforms in the middle."
"Though reasonable, the main competitor of Tenable SC, Rapid7, offers a more aggressive and better priced product."
"As it is now, integration with new tools has to be developed specifically, so it's not easy."
"We experienced some difficulties with the solution’s support."
"Tenable SC can improve by making it easier to create complicated reports and have more effectiveness in the remediation area for comparison between the scans."
"There is not much room for improvement. However, there should be a guide that describes the step-by-step procedures for doing tasks."
 

Pricing and Cost Advice

"The cost is high, but it meets our organizational needs."
"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."
"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."
"TotalCloud's price is about right where I would expect it to be."
"Qualys TotalCloud is expensive."
"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."
"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"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."
Information not available
"For 500 users the licensing fee is roughly $100,000."
"Costing is pretty reasonable compared to the competition."
"We pay around 60,000 on a yearly basis."
"I would rate the pricing a nine out of ten, where ten is expensive. It is the most expensive tool my company is using."
"The pricing depends upon the number of IPs."
"I use a local license to perform penetration testing and I'm pretty happy with everything when it comes to pricing and licensing."
"The tool provides competitive pricing."
"The licensing costs for this solution are approximately $100,000 US, and I think that covers everything."
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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
12%
Manufacturing Company
11%
Government
9%
Computer Software Company
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 Business22
Midsize Enterprise12
Large Enterprise27
 

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 is your experience regarding pricing and costs for Tenable SC?
The price of Tenable Security Center is not so high; it's relatively a cheaper solution.
What needs improvement with Tenable SC?
We did conduct a long implementation which relates to what I think can be improved about Tenable Security Center. In ...
What is your primary use case for Tenable SC?
The typical use case for Tenable Security Center is that it is an on-premise solution, and it can use the agent and a...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
Tenable.sc, Tenable Unified Security, Tenable SecurityCenter
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
IBM, Sempra Energy, Microsoft, Apple, Adidas, Union Pacific
Find out what your peers are saying about Nucleus Security vs. Tenable Security Center and other solutions. Updated: May 2026.
896,099 professionals have used our research since 2012.