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Checkmarx One vs Nucleus Security 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:
 

ROI

Sentiment score
5.2
Qualys TotalCloud enhances efficiency and risk management, saving time, reducing effort and costs, with 50% operational improvement.
Sentiment score
5.6
Checkmarx One enhances security by automating vulnerability detection, reducing costs, and improving development efficiency through CI/CD integration.
Sentiment score
6.8
Nucleus Security improved resource efficiency and saved time, enhancing workflows and operational practices without formal financial tracking.
It has saved about 90% of our time.
Senior Consultant at a consultancy with 10,001+ employees
TotalCloud has generated overall savings of 30 to 40 percent across various departments.
Security Manager at a consultancy with 10,001+ employees
CallStream helps us integrate and automate tasks.
Senior Security Consultant at CyberNxt Solutions LLP
Overall, between the fast scanning, automation, automatic reporting, and easy detection, it has reduced manual effort enough that we did not need an extra reviewer, even as our codebase or team size grew.
Senior GenAI Engineer at a tech vendor with 10,001+ employees
Based on my interactions with the clients, I can tell that there is a return on investment because if something is not profitable and it's not helping to save costs or vulnerabilities, clients wouldn't come back to renew their license year after year.
Chief Technology Officer at 3CS Aquarah Limited
With security, it is always hard to quantify, and we did not really save money, but we used time more effectively and changed our way of working.
Cyber Security Architect at a retailer with 10,001+ employees
We have seen an absolutely clear return on investment in Nucleus Security, and it primarily shows up in massive time savings and vastly improved resource utilization.
manager at a computer software company with 201-500 employees
Automation handles reporting on a scheduled basis and alerts system owners about their posture each week.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
 

Customer Service

Sentiment score
7.3
Qualys TotalCloud's customer service is efficient and competent, though users desire faster responses for complex issues.
Sentiment score
7.0
Checkmarx One support is praised for quick responses and knowledgeable staff, despite some reporting delays in technical support.
Sentiment score
7.9
Nucleus Security's customer service is highly praised for reliability and effectiveness, with minor improvements suggested for response time.
They are helpful, respond to my queries, and can answer any question.
Developer at a consultancy with 10,001+ employees
Qualys's tech support is highly responsive, providing multiple ways to interact with them.
Service Manager, Security Operations at CDA IT SOLUTIONS
Qualys' customer service provides quality answers, but the response time is long, even though it is within the SLA.
Works at a consultancy with 10,001+ employees
If you raise a support case with Checkmarx, it is handled smoothly.
Senior Specialist at a tech vendor with 10,001+ employees
The customer support team is amazing and they provide on-phone call, email support, and on-website support.
Senior Solution Architect | L3+ Systems & Cloud Engineer | SRE Specialist at Canada Cloud Solution
I have relied on Checkmarx One customer support hundreds of times for several things, and Checkmarx One support is very proactive and very responsive.
Chief Technology Officer at 3CS Aquarah Limited
I would describe Nucleus Security's customer support as absolutely fantastic.
manager at a computer software company with 201-500 employees
Customer support is great; I have always had communication with executive leaders, been able to have roadmap calls, and talk with support.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
 

Scalability Issues

Sentiment score
7.7
Qualys TotalCloud is praised for scalability and versatility but may require experienced personnel and isn't initially user-friendly.
Sentiment score
7.0
Checkmarx One is scalable for large workloads, but some users report challenges with configurations and licensing requirements.
Sentiment score
8.4
Nucleus Security excels in scalability, efficiently managing growing workloads and applications, ensuring robust performance and business growth.
We started our organization about nine months back. We started with about 30 users, and we now have more than 100 users.
CIO at a venture capital & private equity firm with 11-50 employees
Our organization currently uses it to manage over 1200 web applications.
Analyst, Information Security at Infosys
It is absolutely scalable, and I would rate its scalability as nine out of ten.
retired at a consultancy with 10,001+ employees
Approximately four billion lines of code are being scanned monthly.
Cyber Security Expert at Nestle
Since it is cloud-based, the infrastructure and PaaS, IaaS, and SaaS are taken care of by the cloud marketplace.
Senior Solution Architect | L3+ Systems & Cloud Engineer | SRE Specialist at Canada Cloud Solution
Checkmarx One's scalability has changed my organization because the strong collaboration between the development and security team helps us to do things much faster.
Senior GenAI Engineer at a tech vendor with 10,001+ employees
The platform has done a great job of handling both stability and scalability excellently.
manager at a computer software company with 201-500 employees
The scalability of Nucleus Security is fairly impressive; even when ingesting multiple assets, there is no noticeable impact.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
 

Stability Issues

Sentiment score
8.3
Qualys TotalCloud is highly stable, with excellent uptime and quick issue resolution, ensuring reliable performance and business continuity.
Sentiment score
7.3
Checkmarx One is generally stable but faces issues with large codebases, memory use, and session inconsistencies.
Sentiment score
8.2
Nucleus Security offers enterprise-grade stability, with reliable performance and minimal downtime, though occasional performance variations are noted.
Overall, the support provided has been excellent.
Analyst, Information Security at Infosys
It is a stable solution, which is why we chose it.
CIO at a venture capital & private equity firm with 11-50 employees
Continuous monitoring is crucial to ensure system stability and avoid vulnerabilities or threats.
Developer at a consultancy with 10,001+ employees
I would rate the stability of this solution a nine on a scale of 1 to 10 where one is low stability and 10 is high.
Specialist Leader at Deloitte
Checkmarx One is often down when the cloud provider experiences issues.
Cyber Security Expert at Nestle
We rarely, if ever, encounter downtime or performance degradation, even when the platform is running massive automation rules and background synchronization tasks during peak operational hours.
manager at a computer software company with 201-500 employees
 

Room For Improvement

Qualys TotalCloud needs better report clarity, dashboard customization, integration, UI, Windows OS support, pricing, and faster vulnerability detection.
Checkmarx One needs enhancements in accuracy, speed, integration, UI, support, pricing, and features for enterprise usability.
Nucleus Security requires better user training, integration, intuitive onboarding, and improvements in customization, configuration, testing, and documentation processes.
Ideally, the scanner should automatically detect and scan all subdomains, even if not explicitly defined, ensuring comprehensive vulnerability assessment.
Analyst, Information Security at Infosys
Ideally, updates should be more immediate, enabling quicker implementation of solutions.
Project Lead at Persistent Systems
Our goal is to integrate all these functions into Qualys, creating a single dashboard for comprehensive security monitoring and management.
Senior Information Security Engineer at a consultancy with 10,001+ employees
Integration into the IDE being used would be beneficial so that code does not need to be uploaded to the website and an IDE-friendly report could be generated.
Senior Software Engineer at a financial services firm with 10,001+ employees
It could suggest how the code base is written and automatically populate the source code with three different solution options to choose from.
Specialist Leader at Deloitte
If you can improve the speed optimization, it takes around 30 to 40 minutes for checking a build. If you can make it within five minutes or 10 minutes, that would be great.
Senior Software Engineer at Tech Mahindra Limited
Nucleus Security needs a better view into exposure management, as exposure management and attack path management are missing.
Cyber Security Architect at a retailer with 10,001+ employees
Having more intuitive step-by-step visualized wizards or guided templates for building complex triage workflows would make the onboarding process much smoother for new team members.
manager at a computer software company with 201-500 employees
It could be integrated with SentinelOne, but it was not showing any SentinelOne alerts.
Head of Security at a consultancy with 51-200 employees
 

Setup Cost

Qualys TotalCloud is considered pricey but valuable for large enterprises, offering cost-effective options especially for VMware users.
Checkmarx One is often costly but provides quality and security, with costs varying by team size and selected modules.
Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive.
Senior Manager at a financial services firm with 10,001+ employees
Pricing is managed by our finance team; however, Qualys TotalCloud offers cost-effective licensing flexibility.
IT Manager at a consultancy with 10,001+ employees
Qualys TotalCloud is expensive, but it offers a premier solution with no headaches.
Vice President at Inspira Enterprise
For a small team under 50 developers, normal expenses come under 30 to 60K.
Senior Solution Architect | L3+ Systems & Cloud Engineer | SRE Specialist at Canada Cloud Solution
Due to the number of years I've implemented Checkmarx One, there are rebates and discounts from the OEM which makes it a lot more profitable.
Chief Technology Officer at 3CS Aquarah Limited
The pricing should be reasonable, matching what we are paying for.
Senior GenAI Engineer at a tech vendor with 10,001+ employees
The licensing model is straightforward, with one license across multiple assets for multiple connectors.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
 

Valuable Features

Qualys TotalCloud provides comprehensive cloud security, easy management, real-time insights, and efficient vulnerability assessment to enhance infrastructure protection.
Checkmarx One offers comprehensive vulnerability scanning, seamless CI/CD integration, and enhances productivity with ease of use and automation.
Nucleus Security streamlines risk management, enhances automation, reduces alert fatigue, and improves compliance through unified vulnerability management.
This view of risk helps reduce the work we would have to do to combine multiple sources to prioritize risk.
Works at a consultancy with 10,001+ employees
It will help cybersecurity professionals monitor the cloud and find vulnerabilities.
Developer at a consultancy with 10,001+ employees
We are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs.
Senior Consultant at a consultancy with 10,001+ employees
Since replacing the previous tool, SAST and SCA scans are conducted in a couple of minutes instead of hours or days.
Cyber Security Expert at Nestle
The best features Checkmarx One offers, over the past years, include broad language and technical support that Checkmarx provides, covering most languages.
Senior Specialist at a tech vendor with 10,001+ employees
Checkmarx One has positively impacted our organization as we tend to find vulnerabilities very early in the development cycle.
Product security engineer at a tech vendor with 10,001+ employees
By centralizing everything, Nucleus Security has completely eliminated that friction and dramatically cut down on alert fatigue across our infrastructure and support teams because the platform prioritizes risk based on real-world threat intelligence.
manager at a computer software company with 201-500 employees
The risk-based prioritization has helped my team focus on the most critical vulnerabilities by considering severity, asset context, and the remediation priorities.
Head of Security at a consultancy with 51-200 employees
The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms.
Cyber Security Architect at a retailer with 10,001+ employees
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
11th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
39
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (1st), Cloud-Native Application Protection Platforms (CNAPP) (6th)
Checkmarx One
Ranking in Vulnerability Management
15th
Average Rating
7.8
Reviews Sentiment
6.6
Number of Reviews
81
Ranking in other categories
Application Security Tools (2nd), Static Application Security Testing (SAST) (2nd), Container Security (14th), Static Code Analysis (2nd), API Security (4th), Dynamic Application Security Testing (DAST) (2nd), DevSecOps (2nd), Risk-Based Vulnerability Management (11th), Application Security Posture Management (ASPM) (3rd), AI Security (3rd)
Nucleus Security
Ranking in Vulnerability Management
40th
Average Rating
7.2
Reviews Sentiment
7.1
Number of Reviews
4
Ranking in other categories
Application Security Tools (28th), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (13th)
 

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.
Shahzad Shahzad - PeerSpot reviewer
Senior Solution Architect | L3+ Systems & Cloud Engineer | SRE Specialist at Canada Cloud Solution
Enable secure development workflows while identifying opportunities for faster scans and improved AI guidance
Checkmarx One is a very strong platform, but there are several areas where it can improve to support modern DevSecOps workflows even better. For example, better real-time developer guidance is needed. The IDE plugin should offer richer AI-powered auto-fixes similar to SNYK Code or GitHub Copilot Security, as current guidance is good but not deeply contextual for large-scale enterprise codebases. This matters because it reduces developer friction and accelerates shift-left adoption. More transparency control over the correlation engines is another need. The correlation engine is powerful but not fully transparent. Users want to understand why vulnerabilities were correlated or de-prioritized, which helps AppSec teams trust the prioritization logic. Faster SAST scan and more language coverage is needed since SAST scan can still be slow for very large mono-repos and there is limited deep support for new language frameworks like Rust and Go, along with advanced coverage for serverless-specific frameworks. This matters because large organizations want sub-minute scans in CI/CD as cloud-native ecosystems evolve fast. A strong API security module is another area for enhancement. API security scanning could be improved with active testing, API discovery, full Swagger, OpenAPI, drift detection, and schema-based fuzzing. This is important as API attacks are one of the biggest AppSec risks in 2025. Checkmarx One is strong, but I see a few areas for improvement including faster SAST scanning for large mono-repos, deeper language framework support, more transparent correlation logic, and stronger API security that includes discovery and runtime context. The IDE plugin could offer more AI-assisted fixes, and the SBOM lifecycle tracking can evolve further. Enhancing integration with SIEM and SOAR would also make enterprise adoption smoother, and these improvements would help developers and AppSec teams move faster with more accuracy.
reviewer2872923 - PeerSpot reviewer
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
Unified vulnerability view has improved risk-based decisions but reporting still needs work
One of the main issues with Nucleus Security is its lack of reporting capability. The user interface resembles an early 2000s application style, and although its speed is decent, it could be improved as more data is ingested. The overall appearance and feel need work, especially compared to modern applications from Rapid7, Qualys, and Tenable, which have more engaging user interfaces. The reporting capability is severely lacking; not being able to filter to granularity or have custom built queries is an annoyance that needs an overhaul. Additionally, there are bugs that have not been resolved, such as when you create a report and remove an asset, the asset still appears in the report despite not being present in the system anymore, leading to issues that need to be addressed quickly. Nucleus Security can become a difficult investment because I already have a vulnerability management solution, and I question where Nucleus Security fits with its licensing model. While I acknowledge automation has been described, it would be amazing to control the entire vulnerability management workflow from Nucleus Security without needing to log onto other systems. Having controls or actions that can be sent from the console down to the scanner for rescans would be beneficial. If Nucleus Security is going down this path, it should ensure that it becomes a one-stop shop for vulnerability management across multiple applications.
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Top Industries

By visitors reading reviews
Manufacturing Company
16%
Financial Services Firm
13%
Outsourcing Company
8%
Comms Service Provider
7%
Financial Services Firm
16%
Manufacturing Company
9%
Computer Software Company
8%
Outsourcing Company
5%
Computer Software Company
13%
Financial Services Firm
12%
Construction Company
8%
Healthcare Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise29
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise9
Large Enterprise46
No data available
 

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 alternatives are there for Fortify WebInspect and Fortify SCA?
I would like to recommend Checkmarx. With Checkmarx, you are able to have an all in one solution for SAST and SCA as ...
What is the biggest difference between Veracode and Checkmarx?
According to my experience of using both the tools in different organizations Veracode is a Cloud-native, managed Ap...
What is your experience regarding pricing and costs for Checkmarx?
Checkmarx One is a premium solution, so budget accordingly. Make sure you understand how licensing scales with additi...
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?
Nucleus Security needs a better view into exposure management, as exposure management and attack path management are ...
What is your primary use case for Nucleus Security?
My main use case for Nucleus Security is unifying the vulnerability management landscape, providing a single source o...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
No data available
 

Overview

 

Sample Customers

Information Not Available
YIT, Salesforce, Coca-Cola, SAP, U.S. Army, Liveperson, Playtech Case Study: Liveperson Implements Innovative Secure SDLC
Information Not Available
Find out what your peers are saying about Checkmarx One vs. Nucleus Security and other solutions. Updated: July 2026.
904,680 professionals have used our research since 2012.