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Nucleus Security vs Skybox Security Suite 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 effectively reduces costs and labor while enhancing asset visibility and risk management, boosting efficiency by up to 40%.
Sentiment score
7.3
Nucleus Security enhances time savings and workflow efficiency through task automation, improving resource allocation and engineering productivity.
Sentiment score
4.8
Skybox Security Suite offers high ROI for large networks by automating firewall management, saving time and reducing breach costs.
We are able to scan all our assets with less human intervention and achieve overall effective outcomes.
Dns architect at a outsourcing company with 5,001-10,000 employees
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
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
6.7
Qualys TotalCloud support is knowledgeable but inconsistent, with some delays and varying service quality affecting customer satisfaction.
Sentiment score
8.2
Nucleus Security's customer service is highly praised for being reliable, effective, and offering helpful, timely responses, ensuring strong satisfaction.
Sentiment score
4.1
Skybox Security's support is mixed; responsive but inconsistent, with challenges in engineer availability and multilingual communication.
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
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
A significant issue was contacting support after hours on the weekends.
Security Engineer at a financial services firm with 10,001+ employees
 

Scalability Issues

Sentiment score
7.4
Qualys TotalCloud efficiently scales across multi-cloud environments, supporting diverse needs for small and large teams with minimal issues.
Sentiment score
8.5
Nucleus Security offers seamless scalability, enhancing performance, supporting growth, and managing extensive assets with an efficient centralized interface.
Sentiment score
5.9
Skybox Security Suite excels in scalability for complex environments, though cost and vertical scaling pose challenges for users.
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
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
One issue I faced with scalability was the transition from Skybox Security Suite's 6500 platform to the 7500 series due to licensing costs becoming prohibitive.
Security Engineer at a financial services firm with 10,001+ employees
 

Stability Issues

Sentiment score
8.4
Qualys TotalCloud is praised for its stability, 99.9% uptime, reliable performance, and responsive support for resolving issues.
Sentiment score
8.4
Nucleus Security is praised for stability and reliability, performing well under heavy loads and large automation tasks.
Sentiment score
7.3
Skybox Security Suite is seen as stable, with occasional VM issues and praised responsive support, varying stability ratings.
Overall, the support provided has been excellent.
Analyst, Information Security at Infosys
It has a lot of scanning mechanisms, which are agentless APIs, eBPF, and cloud agents, that are highly reliable.
Sr Security Engineer at a tech vendor with 5,001-10,000 employees
It is a stable solution, which is why we chose it.
CIO at a venture capital & private equity firm with 11-50 employees
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 UI/UX enhancements, better integrations, compliance reporting, Windows container security, AI threat prediction, and pricing clarity.
Nucleus Security requires intuitive UI, enhanced reporting, streamlined integration, and better onboarding with customizable dashboards and exposure management.
Skybox Security Suite requires improvements in UI, web access, reporting, integration, pricing, support, cloud connectivity, and data processing.
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
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
Reporting could have been improved, and feature requests often were not implemented.
Security Engineer at a financial services firm with 10,001+ employees
Only the licensing part of Skybox had an edge. We were not renewing the licenses of Skybox every year, but in the case of other tools, we would have to renew if we wanted to use those tools.
Security Architect at a tech vendor with 5,001-10,000 employees
It would be better if something more attractive or similar useful information found in AlgoSec was available.
Software Engineer at LTI - Larsen & Toubro Infotech
 

Setup Cost

Qualys TotalCloud offers competitive pricing for large enterprises, providing flexible, cost-effective solutions with comprehensive features and benefits.
Enterprise users appreciate Nucleus Security's competitive pricing, straightforward licensing, and value-driven features despite initial costs.
Skybox Security Suite pricing has mixed reviews, seen as cost-effective by some, but expensive due to varied licensing models.
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 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
From a commercial perspective, AlgoSec is more expensive compared to Skybox Security Suite.
Software Engineer at LTI - Larsen & Toubro Infotech
The pricing became prohibitive when transitioning between the 6500 and 7500 series models.
Security Engineer at a financial services firm with 10,001+ employees
 

Valuable Features

Qualys TotalCloud enhances cloud security with risk prioritization, automation, and visibility, boosting efficiency in vulnerability management and remediation.
Nucleus Security enhances safety and efficiency by streamlining risk management, integrating tools, and prioritizing risks for faster remediation.
Skybox Security Suite offers comprehensive security management with key features like scalability, integration, and user-friendly dashboards for large enterprises.
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
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
The tool successfully helped in preventing vulnerabilities and breaches.
Security Engineer at a financial services firm with 10,001+ employees
Skybox Security Suite's network modeling and path analysis is a good feature when we need to check regarding the connectivity.
Security Architect at a tech vendor with 5,001-10,000 employees
The most helpful feature is the firewall analyzer.
Software Engineer at LTI - Larsen & Toubro Infotech
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
10th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
46
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (9th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
Nucleus Security
Ranking in Vulnerability Management
42nd
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) (12th)
Skybox Security Suite
Ranking in Vulnerability Management
46th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
38
Ranking in other categories
Firewall Security Management (7th)
 

Mindshare comparison

As of October 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 Nucleus Security is 1.1%, up from 0.8% compared to the previous year. The mindshare of Skybox Security Suite is 0.8%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.2%
Nucleus Security1.1%
Skybox Security Suite0.8%
Other96.9%
Vulnerability Management
 

Featured Reviews

reviewer2859021 - PeerSpot reviewer
Sr Security Engineer at a tech vendor with 5,001-10,000 employees
Risk-based triage has transformed container security and now prioritizes high-impact threats
The best features Qualys TotalCloud offers currently include managing cloud infrastructure and container security while facing major challenges such as alert fatigue. Traditional vulnerability scanners flag hundreds of CVEs on short-lived Kubernetes containers, some of which have no internet exposure or are gone before we can even triage them. I leverage Qualys TotalCloud to move beyond static CVSS. I use it to implement runtime exposure, correlation risk reprioritization, and shift-left integration. This notifies developers to fix a base image upstream rather than patching live ephemeral instances. In my work with cloud and container security, the biggest operational hurdle was alert fatigue. I use Qualys to shift left from static CVSS severity to context-aware risk prioritization. I correlated raw vulnerability data with real-time risk factors such as public network exposure, active runtime execution, or overly permissive IAM roles. This allows us to immediately drop the priority of isolated containers and escalate lower-severity CVEs that sit on an exposed, high-risk path. We can map these findings directly back to our CI/CD pipelines so developers can patch the root base images upstream. We have drastically cut down the signal-to-noise ratio, saved a lot of manual hours doing triage work, and ensured engineering effort goes directly towards high-impact risk reduction.
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.
AnoopBhat - PeerSpot reviewer
Security Architect at a tech vendor with 5,001-10,000 employees
Firewall policy management has improved access control but still needs simpler setup and upgrades
The features that I appreciated the most in Skybox Security Suite were not comparable with Tufin, as Tufin was far ahead in terms of the technology and the user interface. The effectiveness of the vulnerability management in Skybox Security Suite is an area I have not used that much. The firewall management feature has streamlined rule configuration and compliance in Skybox Security Suite and has evolved over time, but Tufin is far better. In terms of comparison between both tools, only the licensing part of Skybox had an edge. We were not renewing the licenses of Skybox every year, but in the case of other tools, we would have to renew if we wanted to use those tools. The disadvantages and weaknesses of Skybox Security Suite include the interface, complexity with setup, and upgrading. There are some smaller issues as well that would take more time to discuss, but there are ways around them. We use this tool to implement a new policy on the firewall by going to Skybox, creating a flow there, and then using an approval mechanism in place. There are two different levels of approvals which we have to go through, and once both approvers approve the request, we are ready to implement it. A specific challenge is that if we have to create a new object group and place ten different objects in that and use that object group in two different rules, we have to create the object group in the first rule and add the ten new objects. Then if we have to create another rule, we do not get an option to recall or reuse that same group which we created in the previous rule. We have to create a new object group again and then add the objects into it again. If we had created an object group once, we should have gotten an option to recall that or call that object group in the new rule, and that should have made the process easier.
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Top Industries

By visitors reading reviews
Comms Service Provider
16%
Outsourcing Company
12%
Manufacturing Company
11%
Financial Services Firm
10%
Computer Software Company
12%
Outsourcing Company
10%
Financial Services Firm
9%
Manufacturing Company
9%
Financial Services Firm
15%
Manufacturing Company
10%
Computer Software Company
8%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise6
Large Enterprise35
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise4
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise4
Large Enterprise21
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
In terms of improvement, remediation still belongs to the cloud team, which is one of the issues we faced with Qualys...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is regarding the cloud visibility that we were not having previously. Previous...
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...
What is your experience regarding pricing and costs for Skybox Security Suite?
From a commercial perspective, AlgoSec is more expensive compared to Skybox Security Suite. Skybox Security Suite is ...
What needs improvement with Skybox Security Suite?
The features that I appreciated the most in Skybox Security Suite were not comparable with Tufin, as Tufin was far ah...
What is your primary use case for Skybox Security Suite?
Skybox Security Suite is primarily used for allowing access on firewalls and getting the access to allow some connect...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
No data available
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
ADP, Blue Cross Blue Shield, BT, USAID, Delta Dental, EDF Energy, EMC, HSBC, Johnson & Johnson
Find out what your peers are saying about Nucleus Security vs. Skybox Security Suite and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.