Nucleus Security vs Tenable Security Center comparison

Nucleus Security and Tenable are both solutions in the Risk-Based Vulnerability Management category. Nucleus Security is ranked #14 with an average rating of 7.5, while Tenable is ranked #2 with an average rating of 9.1. Nucleus Security holds a 3.0% mindshare in RBVM, compared to Tenable’s 8.2% mindshare. Additionally, 100% of Nucleus Security users are willing to recommend the solution, compared to 96% of Tenable users who would recommend it.

Nucleus Security

Read 2 Nucleus Security reviews

1,981 Views
792 Comparison Views

100% willing to recommend

Tenable Security Center

Read 56 Tenable Security Center reviews

8,392 Views
3,357 Comparison Views

96% willing to recommend

Nucleus Security

Tenable Security Center

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Executive SummaryUpdated on Feb 23, 2026

Tenable Security Center and Nucleus Security compete in the cybersecurity space, offering distinct network protection solutions. Nucleus Security seems to have an edge due to its integrative capabilities and customization options, appealing to users seeking advanced features.

Features: Tenable Security Center is known for its comprehensive vulnerability assessment, asset discovery, and detailed report capabilities. Nucleus Security focuses on integrative flexibility, automation features that benefit workflow efficiency, and extensive customization options.

Ease of Deployment and Customer Service: Tenable Security Center requires intensive configuration yet offers robust customer service with prompt responses. Nucleus Security provides a straightforward deployment process with minimal configuration, paired with exceptional customer support.

Pricing and ROI: Tenable Security Center has a higher initial setup cost, which is offset by long-term ROI from in-depth security insights. Nucleus Security provides competitive pricing, accessible for smaller budgets, delivering ROI through streamlined processes and automation efficiencies.

To learn more, read our detailed Risk-Based Vulnerability Management Report (Updated: March 2026).

Buyer's Guide

Risk-Based Vulnerability Management

March 2026

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Helped 886,426 peers since 2012

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

Nucleus Security

Ranking in Vulnerability Management

41st

Ranking in Risk-Based Vulnerability Management

14th

Average Rating

7.6

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

Application Security Tools (26th), Continuous Threat Exposure Management (CTEM) (13th)

Tenable Security Center

Ranking in Vulnerability Management

5th

Ranking in Risk-Based Vulnerability Management

2nd

Average Rating

8.2

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

Cloud Security Posture Management (CSPM) (12th)

Mindshare comparison

As of April 2026, in the Risk-Based Vulnerability Management category, the mindshare of Nucleus Security is 3.0%, up from 2.7% compared to the previous year. The mindshare of Tenable Security Center is 8.2%, down from 15.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Risk-Based Vulnerability Management Mindshare Distribution
Product	Mindshare (%)
Tenable Security Center	8.2%
Nucleus Security	3.0%
Other	88.8%

Risk-Based Vulnerability Management

Featured Reviews

Biswajit Jena

Technical Director at Entrust Software Development India

Centralized security testing has improved vulnerability remediation and compliance reporting

I recommend more enhancements focusing on penetration testing for both SSL over HTTP and non-SSL over HTTP, specifically targeting the RCP Rich Client Platform and Equinox frameworks that allow on-premises desktop applications to be tested simultaneously. I believe those would significantly improve the tool in the future. I choose eight as my rating primarily because of the installer app; it becomes challenging to identify the actual vulnerabilities. Once we build this installer—rather than just working on the codebase—sometimes, we face gaps considering the build parameters and conversions to the installer. Identifying those gaps is an area that could use improvement after the installer or desktop application testing, which would be beneficial. That is the only reason; otherwise, I could easily rate it a ten out of ten given its smooth operational process.

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reviewer1534134

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.

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Quotes from Members

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

Pros

"I think the best features that Nucleus Security offers are purely the faster remediation to dev tools, which is crucial for managing, prioritizing, and fixing vulnerabilities while helping operational pipelines run these vulnerability management tools."

"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 most valuable features of Tenable SC are the reports and the dashboards."

"Of all the tools I've used, when it comes to managing the vulnerabilities and risks of a whole enterprise environment, I don't think I've used a better tool than Security Center."

"The most valuable features in Tenable SC are scanning and analysis."

"Has a great advanced scanning feature."

"The solution is very intuitive as are the dashboards, and it provides good visibility to the vulnerabilities in the company."

"The scans are the most valuable aspect of this solution."

"Support is knowledgeable."

"The initial setup process is simple."

More Tenable Security Center pros

Cons

"I choose eight as my rating primarily because of the installer app; it becomes challenging to identify the actual vulnerabilities."

"Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow."

"The solution should include compliance-based scanning."

"The dashboard templates are limited."

"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."

"Tenable has some problems with agents going offline during scanning and lag between agents and the security center."

"Tenable's technical support has declined in quality over time. While they used to be excellent, achieving ratings of eight or nine, they now rate around six or seven due to longer response times and less thorough assistance."

"We experienced some difficulties with the solution’s support."

"The solution should provide better web application features and support."

"Its reporting can be improved. It is not easy to generate a scan report the way we want. The data is okay, but we can't easily change the template to make it look the way we want."

More Tenable Security Center cons

Pricing and Cost Advice

Information not available

"We're able to save because we don't have to employ more staff members to help wit ht he scheduling of the scans, running the reports or sending them out to the systems owners. That alone is a big ROI for us."

"This solution's price is quite high."

"My company needs to make yearly payments towards the licensing costs. The pricing of the solution falls in the mid-range level, so it is not too expensive"

"We pay around 60,000 on a yearly basis."

"Costing is pretty reasonable compared to the competition."

"I use a local license to perform penetration testing and I'm pretty happy with everything when it comes to pricing and licensing."

"The price of Tenable SC is expensive, we pay approximately €70,000 for the license annually. We have to pay for each IP test. The cost of other solutions is far less, such as Nessus Professional, which is €3,000 annually."

"We're happy with the licensing cost and find it affordable."

More Tenable Security Center pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

16%

Financial Services Firm

11%

Comms Service Provider

Healthcare Company

Financial Services Firm

12%

Manufacturing Company

10%

Government

Computer Software Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	22
Midsize Enterprise	10
Large Enterprise	27

Questions from the Community

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.

See all answers

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 workflow from a healthcare perspective. The main improvements I can see right now are...

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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 Nucleus Security especially for understanding radiation safety, nuclear medicine,...

See all answers

What do you like most about Tenable SC?

The tool's dashboard and reporting capabilities match our company's needs since we are able to modify the basic view to create a new dashboard, and it works out very well for our needs.

See all answers

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.

See all answers

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 some cases, we needed to refer back to Tenable itself, and in other cases, we ne...

See all answers

Comparisons

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Compared 9% of the time

Qualys VMDR vs Tenable Security Center

Compared 8% of the time

Tenable Nessus vs Tenable Security Center

Compared 7% of the time

Tenable Vulnerability Management vs Tenable Security Center

Compared 5% of the time

The NodeZero Platform by Horizon3.ai vs Tenable Security Center

Compared 3% of the time

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Product Reports

Buyer's Guide

Risk-Based Vulnerability Management

March 2026

Download Nucleus Security product report

Buyer's Guide

Tenable Security Center

March 2026

Download Tenable Security Center product report

Also Known As

No data available

Tenable.sc, Tenable Unified Security, Tenable SecurityCenter

Overview

Nucleus Security offers a scalable vulnerability management platform designed for effective risk reduction. By integrating with existing IT infrastructure, it enhances security measures and improves agility.

As a comprehensive security tool, Nucleus Security provides customizable vulnerability assessment, streamlined workflows, and integration capabilities with security tools to enhance threat detection and response. It's tailored for enterprises seeking an intuitive management platform that delivers actionable insights and increases efficiency. By leveraging robust automation and advanced analytics, the platform aids organizations in optimizing their cybersecurity posture.

What are the key features of Nucleus Security?

Customizable Dashboards: Offers personalized views for better visibility and control.
Automated Workflows: Reduces manual tasks, allowing for quicker incident response.
Extensive Integrations: Connects with major security tools to unify threat data.
Risk Prioritization: Analyzes threats to focus on the most critical vulnerabilities.

What benefits can users expect from Nucleus Security?

Increased Efficiency: Streamlined processes lead to faster threat resolution.
Enhanced Data Visibility: Comprehensive data access improves decision-making capabilities.
Cost Reduction: Automation reduces labor costs and minimizes resource expenditure.
Improved Compliance: Facilitates adherence to regulatory standards and policies.

In industries like healthcare, finance, and technology, Nucleus Security is implemented to address specific risks and compliance needs. It provides tailored solutions to safeguard sensitive data, manage regulatory pressures, and ensure robust threat detection. Industries benefit from its ability to adapt to sector-specific challenges while maintaining high security standards.

Nucleus Security

Get a risk-based view of your IT, security and compliance posture so you can quickly identify, investigate and prioritize your most critical assets and vulnerabilities.

Managed on-premises and powered by Nessus technology, the Tenable Security Center (formerly Tenable.sc) suite of products provides the industry’s most comprehensive vulnerability coverage with real-time continuous assessment of your network. It’s your complete end-to-end vulnerability management solution.

Tenable

Sample Customers

Information Not Available

IBM, Sempra Energy, Microsoft, Apple, Adidas, Union Pacific

Buyer's Guide

Risk-Based Vulnerability Management

March 2026

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