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Red Hat Advanced Cluster Security for Kubernetes vs Tenable.io Container Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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 Container Security
11th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
41
Ranking in other categories
Vulnerability Management (10th), 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)
Red Hat Advanced Cluster Se...
Ranking in Container Security
23rd
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
12
Ranking in other categories
No ranking in other categories
Tenable.io Container Security
Ranking in Container Security
26th
Average Rating
8.0
Reviews Sentiment
6.1
Number of Reviews
9
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.7%, up from 1.0% compared to the previous year. The mindshare of Red Hat Advanced Cluster Security for Kubernetes is 1.4%, down from 2.1% compared to the previous year. The mindshare of Tenable.io Container Security is 1.0%, down from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.7%
Red Hat Advanced Cluster Security for Kubernetes1.4%
Tenable.io Container Security1.0%
Other95.9%
Container Security
 

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.
JR
Cybersecurity Architect/System Security Engineer at General Dynamics Mission Systems–Canada
Provides network mapping feature for visualizing container communication but complex setup
There is room for improvement in the setup process. All these tools come down to how you're integrating into your environment and having good knowledge of the tool. So that's the biggest problem with all these security tools – you gotta have knowledgeable people to build, integrate, and really flesh them out in your environment to make them work as they should.
AS
Cyber Security Architect at a security firm with 201-500 employees
Detailed container image reports have improved vulnerability insight and support secure operations
Most valuable are the reports that are quite good, particularly the detailed ones for container image scanning. Tenable.io Container Security is giving me the vulnerability information of Docker images and the information about software bill of materials. However, my challenge at this time is that I am using all these solutions with GitLab Ultimate, and it does not support integration, so I am doing some alternate arrangements which are giving me operational complexity because I need to introduce something else instead of GitLab Ultimate. That is the primary concern regarding the benefits of real-time visibility into my containerized application security status.

Quotes from Members

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

Pros

"One of the features I appreciate is the ability to generate daily reports without relying on anyone else."
"The best part I like is the on-demand scans."
"Vulnerability and threat detection and assessment of the criticality of the vulnerabilities exposed are most valuable."
"TotalCloud has been excellent in providing us with immediate access to all the products and features we need, such as CSPM, TruRisk Insights, and compliance reports, including CIS and HIPAA."
"The platform's unified view of the organization proves particularly valuable for leadership team meetings."
"It is a cloud-native app that integrates with both IaaS and SaaS. It seamlessly integrates with other platforms."
"The vulnerability management feature is the one I like the most because it provides a clear picture of all vulnerabilities."
"Qualys TotalCloud's most valuable feature is its ability to link clusters of assets, providing a clear model of deployments, vulnerabilities, and statuses."
"The most valuable feature is the ability to share resources."
"The technical support is good."
"Offers easy management with authentication and authorization features"
"The most beneficial security feature of the product revolves around the areas of vulnerability and configuration."
"It is easy to install and manage."
"I am impressed with the tool's visibility."
"One of the most valuable features I found was the ability of this solution to map the network and show you the communication between your containers and your different nodes."
"The most valuable feature of the solution is its monitoring feature."
"It helps us secure our applications from the build phase and identify the weaknesses from scratch."
"By using Nessus, we are able to finish testing with assured results, in half the time."
"It is a scalable solution. Scalability-wise, it is a good solution."
"The solution shows you the exploitable vulnerabilities and helps you prioritize."
"Currently, I haven't implemented the solution due to its deprecation by the site. However, I can highlight some benefits of Tenable Cloud Security, a cybersecurity solution with various features for scanning vulnerabilities in both cloud environments and on-premises container security."
"The strong security provided by the product in the container environment is its most valuable feature."
"The tool's most valuable feature is scanning, reporting, and troubleshooting."
"Most valuable are the reports that are quite good, particularly the detailed ones for container image scanning."
 

Cons

"There is room for improvement in the support."
"We would like to see Windows-based sensors available in Qualys, as this would make the platform more versatile and support a broader range of environments."
"The areas in the solution that have room for improvement include the UI/UX design, which should be improved, and they should integrate more artificial intelligence into the product."
"I would appreciate additional integration options to connect Qualys TotalCloud with our other vulnerability management tools."
"Enhancing clarity regarding its compliance capabilities would be beneficial, as the current scope is limited in geographic coverage."
"In a future release, I suggest that zero-day vulnerabilities should be predicted in advance using AI technologies. The system is not 100% secure yet, so proactive threat hunting could be enhanced to be more proactive than the current system."
"In my opinion, what can be improved in Qualys TotalCloud includes pricing and container scanning."
"The onboarding process is a bit difficult. In the initial phase, it is very difficult to understand the features, what the dashboard contains, and what criteria they are using."
"The tool's command line and configuration are hard for us to understand and make deployment complex. It should also include zero trust, access control features and database connectivity."
"Red Hat is somewhat expensive."
"The support and specifications need to be up to date for the cluster technologies"
"The solution's visibility and vulnerability prevention should be improved."
"The solution lacks features when compared to some of the competitors such as Prisma Cloud by Palo Alto Networks and has room for improvement."
"They're trying to convert it to the platform as a source. They are moving in the direction of Cloud Foundry so it can be easier for a developer to deploy it."
"The testing process could be improved."
"The documentation about Red Hat Advanced Cluster Security available online is very limited... So it's very limited to the documentation."
"However, my challenge at this time is that I am using all these solutions with GitLab Ultimate, and it does not support integration, so I am doing some alternate arrangements which are giving me operational complexity because I need to introduce something else instead of GitLab Ultimate."
"I feel that in certain areas this product has false positives which the company should work on."
"I feel that in certain areas this product has false positives which the company should work on. They should also try to include business logic vulnerabilities in the scanner testing. Finally, the vulnerability assessment feature should be increased to other hardware devices, apart from firewalls."
"I believe integration plays a crucial role for Tenable, particularly in terms of connecting with other products and various container solutions like Docker or Kubernetes. It seems that in future updates, enhanced integration is something I would appreciate. Currently, there is integration with Docker, but when it comes to Kubernetes or other container solutions, it appears to be a challenge, especially with on-prem scanners."
"The solution’s pricing could be improved."
"They need to work on auto-remediation so it's easier for the security team to act quickly when certain assets or resources are deployed. The latest version has a CIS benchmark that you need to meet for containers in the cloud, but more automation is needed."
"Tenable.io Container Security should improve integration modules. It should also improve stability."
"The stability and setup phase of the product are areas with shortcomings where improvements are needed."
 

Pricing and Cost Advice

"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."
"TotalCloud's price is about right where I would expect it to be."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."
"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"The cost is high, but it meets our organizational needs."
"Qualys TotalCloud offers cost-effective licensing flexibility."
"While Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive and may soon be considered overpriced."
"The pricing model is moderate, meaning it is not very expensive."
"It's a costly solution"
"Red Hat offers two pricing options for their solution: a separate price, and a bundled price under the OpenShift Platform Plus."
"The price of Red Hat Advanced Cluster Security for Kubernetes is better than Palo Alto Prisma."
"We purchase a yearly basis license for the solution."
"I rate the tool's pricing a three out of ten."
"The solution's pricing is neither cheap nor very expensive."
"It's best to be an institutional buyer and directly contact the sales team as they can provide over-the-top discounts for bulk orders."
"I rate the product’s pricing a six out of ten."
"The product does not operate on a pay-per-license model."
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Top Industries

By visitors reading reviews
Manufacturing Company
14%
Outsourcing Company
12%
Financial Services Firm
10%
Construction Company
10%
Financial Services Firm
28%
Manufacturing Company
6%
Computer Software Company
6%
Government
6%
Financial Services Firm
14%
Manufacturing Company
8%
Outsourcing Company
8%
Retailer
7%
 

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 Business6
Midsize Enterprise2
Large Enterprise4
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise3
Large Enterprise4
 

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 needs improvement with Red Hat Advanced Cluster Security for Kubernetes?
From an improvement perspective, I would like to create new policies in the tool, especially if it is deployed for th...
What is your primary use case for Red Hat Advanced Cluster Security for Kubernetes?
I use the solution in my company for vulnerability management, configuration management, compliance, safety handling,...
What advice do you have for others considering Red Hat Advanced Cluster Security for Kubernetes?
The tool's policy management supports our company's compliance efforts since any corporate entity or enterprise must ...
What needs improvement with Tenable.io Container Security?
Several things need improvement about Tenable.io Container Security. First, they should support GitLab Ultimate. Seco...
What is your primary use case for Tenable.io Container Security?
I have been dealing with Tenable.io Container Security for almost four to six months.
 

Also Known As

Qualys TotalCloud with FlexScan
StackRox
Tenable FlawCheck, FlawCheck
 

Overview

 

Sample Customers

Information Not Available
City National Bank, U.S. Department of Homeland Security
ServiceMaster
Find out what your peers are saying about Red Hat Advanced Cluster Security for Kubernetes vs. Tenable.io Container Security and other solutions. Updated: June 2026.
908,745 professionals have used our research since 2012.