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Cortex Cloud by Palo Alto Networks 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
5.3
Qualys TotalCloud enhances efficiency, reduces costs by 30-40%, and increases ROI by 10-20%, significantly saving time and resources.
Sentiment score
3.7
Cortex Cloud by Palo Alto Networks boosts efficiency and ROI with XSOAR integrations, though ROI quantification can be challenging.
Sentiment score
7.3
Nucleus Security enhances time savings and workflow efficiency through task automation, improving resource allocation and engineering productivity.
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
The solution provides a good ROI, especially for regular customers, offering discounts for three-year licenses.
Senior Consultant at a tech vendor with 10,001+ employees
I don't think the tool in itself is very capable of doing that, but we have XSOAR and other tool integrations done on the platform, so this can be accomplished.
Technical Solutions Architect at IBM
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
7.0
Qualys TotalCloud's customer support is praised for expertise and responsiveness but occasionally faces response delays and inefficiencies.
Sentiment score
6.6
Cortex Cloud's customer service is praised for prompt, knowledgeable support and effective troubleshooting, earning high user ratings.
Sentiment score
8.2
Nucleus Security's customer service is highly praised for being reliable, effective, and offering helpful, timely responses, ensuring strong satisfaction.
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 I make it a high priority, they have resolved one query within 20 minutes.
Assistant Security Architect at Cloudnomics
If local Indian support cannot resolve an issue, global tech support aligns promptly within the agreed SLA.
Senior Consultant at a tech vendor with 10,001+ employees
Fast response times and knowledgeable staff who understand the intricacies of the system.
Principle Cloud Architect at a tech services company with 11-50 employees
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
7.5
Qualys TotalCloud excels in scalability but may need skilled management, adaptable for varying environments and large-scale deployments.
Sentiment score
4.5
Palo Alto's Cortex Cloud is scalable and efficient, with easy onboarding, but can be costly for higher licenses.
Sentiment score
8.5
Nucleus Security offers seamless scalability, enhancing performance, supporting growth, and managing extensive assets with an efficient centralized interface.
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
For stability, scalability, mean time to response, and potential incident investigation improvements, I would give it a nine or probably even a ten.
Business Development Team Lead at a tech vendor with 201-500 employees
Onboarding endpoints and assets on Cortex Cloud by Palo Alto Networks is very easy.
Assistant Security Architect at Cloudnomics
The platform is able to auto-shut certain resources that are not in use through the agentless scan feature.
Technical Solutions Architect at IBM
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 praised for stability, boasting 99.9% uptime with minimal downtime and quickly resolved minor bugs.
Sentiment score
7.8
Cortex Cloud by Palo Alto Networks is praised for its stability, reliability, and seamless security performance without latency or issues.
Sentiment score
8.4
Nucleus Security is praised for stability and reliability, performing well under heavy loads and large automation tasks.
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
My impression of Cloud Runtime Security in stopping attacks in real-time is that I have never had an issue where it has let something through, causing an outage or concerns to the customer.
Business Development Team Lead at a tech vendor with 201-500 employees
However, now in Cortex Cloud, I have not seen any lag or buffer.
Assistant Security Architect at Cloudnomics
My evaluation of how stable and reliable Cortex Cloud by Palo Alto Networks is very positive.
Technical Solutions Architect at IBM
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

Users recommend enhancing compliance, UI, integration, and reporting, improving security features, and optimizing pricing and navigation for Qualys TotalCloud.
Cortex Cloud's interface and costs challenge users, with needs for improved integration, efficiency, and identity management features.
Nucleus Security requires intuitive UI, enhanced reporting, streamlined integration, and better onboarding with customizable dashboards and exposure management.
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
Regarding the generative AI security tool, I know for sure it's Agentic.
Cybersecurity Analyst at a tech services company with 11-50 employees
The solution is quite premium in cost compared to alternatives such as Wiz.
Principle Cloud Architect at a tech services company with 11-50 employees
There is not a clear MSP model compared to other vendors such as CrowdStrike.
Business Development Manager For Palo Alto Networks at a tech services company with 1,001-5,000 employees
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 costly but offers value and integration, ideal for enterprises despite higher pricing.
Enterprise users appreciate Nucleus Security's competitive pricing, straightforward licensing, and value-driven features despite initial costs.
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
The solution is costly, with high-end capabilities suitable for enterprises.
Senior Consultant at a tech vendor with 10,001+ employees
Today, it is smart and easy to calculate the licenses.
Cloud Security Manager at T-Systems International GmbH
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 enhances risk management with misconfiguration detection, TruRisk integration, continuous monitoring, automation, and seamless integration for IaaS and SaaS.
Cortex Cloud enhances security management with AI-driven threat detection, automation, and seamless CI/CD integration, reducing response times significantly.
Nucleus Security enhances safety and efficiency by streamlining risk management, integrating tools, and prioritizing risks for faster remediation.
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
AI/ML aids in anticipating remediation for misconfigurations and vulnerabilities, and automatic remediation can be easily configured.
Senior Consultant at a tech vendor with 10,001+ employees
Cortex Cloud by Palo Alto Networks has reduced the time spent on incident investigations, and if I had to estimate, I would say it has cut our investigation time in half.
Sr. Compliance Analyst at a computer software company with 51-200 employees
This simplifies the management of shared responsibility among different people and entities, allowing you to use one single tool instead of having dozens of different tools to orchestrate and integrate.
Business Development Manager For Palo Alto Networks at a tech services company with 1,001-5,000 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
10th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
41
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (7th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (6th)
Cortex Cloud by Palo Alto N...
Ranking in Vulnerability Management
15th
Average Rating
8.6
Reviews Sentiment
5.7
Number of Reviews
11
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (9th), Cloud Security Posture Management (CSPM) (9th), Cloud-Native Application Protection Platforms (CNAPP) (7th), Data Security Posture Management (DSPM) (9th), Software Supply Chain Security (6th), Cloud Infrastructure Entitlement Management (CIEM) (5th), Application Security Posture Management (ASPM) (5th), Cloud Detection and Response (CDR) (4th)
Nucleus Security
Ranking in Vulnerability Management
43rd
Average Rating
7.2
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
Application Security Tools (29th), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (13th)
 

Mindshare comparison

As of August 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.2%, up from 1.0% compared to the previous year. The mindshare of Cortex Cloud by Palo Alto Networks is 1.1%, up from 0.4% compared to the previous year. The mindshare of Nucleus Security is 1.0%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.2%
Cortex Cloud by Palo Alto Networks1.1%
Nucleus Security1.0%
Other96.7%
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.
SJ
Technical Solutions Architect at IBM
Cloud security has improved as AI-driven runtime protection detects threats and reduces incidents
In my opinion, Cortex Cloud by Palo Alto Networks could be improved or enhanced in various ways. I don't have an idea about that yet because for that you actually need to use two or three different other tools to make a basic comparison. If you ask me how good the tool is, I would fairly rate it quite high. The tool is very popular, and customers can already see that it is one of the cloud leaders in the security space. The platform had a very good feature which provides documentation links about how to use a specific feature on the UI. It takes you to the proper documentation page where it suggests what to do and tells you about the steps that need to be done for a resource deployment. My thoughts about improving the product which I believe could greatly aid vendors is that it used to be a very user-friendly tool, but now they have incorporated everything under one umbrella. It has XDR, XSOAR, and Cortex Cloud by Palo Alto Networks. Before, we used to have separate modules and separate environments for each of these capabilities or features. Right now, it is a little complex and users would take their own time to know the tool better. This is something that would have been way better, but I would say there would be different opinions on this. Talking about user-friendliness, it has decreased now.
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
13%
Outsourcing Company
12%
Comms Service Provider
10%
Financial Services Firm
10%
Manufacturing Company
17%
Construction Company
11%
Financial Services Firm
8%
Outsourcing Company
7%
Financial Services Firm
12%
Computer Software Company
11%
Construction Company
8%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise5
Large Enterprise30
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise4
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise4
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
To be totally honest, I do not have any best features because I have had a bad experience using this tool, especially...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is vulnerability management and exposure management. I use this tool to evalua...
What is your experience regarding pricing and costs for Cortex Cloud by Palo Alto Networks?
I am not fully aware of the pricing and licensing of Cortex Cloud by Palo Alto Networks. The pricing is also based on...
What needs improvement with Cortex Cloud by Palo Alto Networks?
In my opinion, Cortex Cloud by Palo Alto Networks could be improved or enhanced in various ways. I don't have an idea...
What is your primary use case for Cortex Cloud by Palo Alto Networks?
The usual use cases for Cortex Cloud by Palo Alto Networks that I have been working with mostly are as simple as dete...
What is your experience regarding pricing and costs for Nucleus Security?
The licensing model is straightforward, with one license across multiple assets for multiple connectors. It is always...
What needs improvement with Nucleus Security?
While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep. Wh...
What is your primary use case for Nucleus Security?
In the initial phase when we first brought Nucleus Security into our environment, instead of immediately pushing it i...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
No data available
 

Overview

Find out what your peers are saying about Cortex Cloud by Palo Alto Networks vs. Nucleus Security and other solutions. Updated: July 2026.
909,153 professionals have used our research since 2012.