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

 

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

Red Hat Advanced Cluster Se...
Ranking in Container Security
21st
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
22nd
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Container Security category, the mindshare of Red Hat Advanced Cluster Security for Kubernetes is 2.1%, down from 2.2% compared to the previous year. The mindshare of Tenable.io Container Security is 1.1%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Market Share Distribution
ProductMarket Share (%)
Red Hat Advanced Cluster Security for Kubernetes2.1%
Tenable.io Container Security1.1%
Other96.8%
Container Security
 

Featured Reviews

Daniel Stevens - PeerSpot reviewer
Software Engineer at Galley
Offers easy management and container connection with HTTPS, but the support needs to improve
I have experience with the solution's setup in Rio de Janeiro, Brazil and our company has assisted in the development of a cluster in a research department, but we didn't start from scratch because we have IT professionals who have installed Kubernetes across 12 nodes of a cluster and a new environment can be created for a new platform. I also had another setup experience of Red Hat Advanced Cluster Security for Kubernetes in Portugal where I had to implement the solution in a cluster of 22 computer servers, which was completed with assistance from the IT department of the company. The initial setup process of the solution can be considered as difficult. The setup process involves using the permissions, subnets and range of IPs, which makes it complex. Deploying Red Hat Advanced Cluster Security for Kubernetes takes around eight to ten hours for new clusters. The solution's deployment can be divided into three parts. The first part involves OpenStack, where the cluster's resources need to be identified. The second part involves virtualizing assets and identifying other physical assets, for which OpenStack, Kubernetes, or OpenShift are used. The third part of the deployment involves dividing the networks into subnetworks and implementing automation to deploy the microservices using Helm. The number of professionals required for the solution's deployment depends upon the presence of automated scripts. Ideally, two or three professionals are required to set up Red Hat Advanced Cluster Security for Kubernetes.
Yusuf-Hashmi - PeerSpot reviewer
Sr. Director - Group Head - IT Security (CISO) at Jubilant Organosys Ltd., India, Leading Chemical M
It helps you catch misconfigurations before they go into a production environment where they're harder to deal with
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. Asset visibility is also critical. While Tenable provides visibility into containers, it could be done much better. Compliance is one of the most crucial aspects of container security. It should be more customizable. For example, I would like a rating system where Tenable reports a risk score for each container based on user-defined metrics, such as severity, activity, or compliance.

Quotes from Members

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

Pros

"I like virtualization and all those tools that come with OpenShift. I also like Advanced Cluster Management and the built-in security."
"The most valuable feature of the solution is its monitoring feature."
"It is easy to install and manage."
"I am impressed with the tool's visibility."
"Segmentation is the most powerful feature."
"Scalability-wise, I rate the solution a nine out of ten."
"Offers easy management with authentication and authorization features"
"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 strong security provided by the product in the container environment is its most valuable feature."
"Tenable.io detects misconfiguration when you deploy a Docker or Kubernetes container. It's much better to remedy these issues during deployment instead of waiting until the container is already in the production environment."
"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 solution shows you the exploitable vulnerabilities and helps you prioritize."
"It is a scalable solution. Scalability-wise, it is a good solution."
"It helps us secure our applications from the build phase and identify the weaknesses from scratch."
"Nessus scanner is very effective for internal penetration testing."
"The tool's most valuable feature is scanning, reporting, and troubleshooting."
 

Cons

"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 solution's visibility and vulnerability prevention should be improved."
"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."
"The initial setup is pretty complex. There's a learning curve, and its cost varies across different environments. It's difficult."
"The solution's price could be better."
"Red Hat is somewhat expensive."
"I do see that some features associated with the IAST part are not included in the tool, making it an area where improvements are required."
"The solution lacks features when compared to some of the competitors such as Prisma Cloud by Palo Alto Networks and has room for improvement."
"The solution’s pricing could be improved."
"Tenable.io Container Security should improve integration modules. It should also improve stability."
"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 stability and setup phase of the product are areas with shortcomings where improvements are needed."
"The initial setup is highly complex."
"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."
"The support is tricky to reach, so we would like better-oriented technical support enabled."
"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."
 

Pricing and Cost Advice

"The price of Red Hat Advanced Cluster Security for Kubernetes is better than Palo Alto Prisma."
"Red Hat offers two pricing options for their solution: a separate price, and a bundled price under the OpenShift Platform Plus."
"We purchase a yearly basis license for the solution."
"The pricing model is moderate, meaning it is not very expensive."
"It's a costly solution"
"I rate the tool's pricing a three out of ten."
"I rate the product’s pricing a six out of ten."
"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."
"The solution's pricing is neither cheap nor very expensive."
"The product does not operate on a pay-per-license model."
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Top Industries

By visitors reading reviews
Financial Services Firm
28%
Computer Software Company
9%
Government
8%
Manufacturing Company
8%
Financial Services Firm
16%
Manufacturing Company
13%
Government
8%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise4
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise2
Large Enterprise4
 

Questions from the Community

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 the prevention part, but currently, we need to do it manually. I hear that Palo Al...
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, and everything else.
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 follow specific regulations, which include periodic analysis and configuration r...
What advice do you have for others considering Tenable.io Container Security?
We were able to integrate Tenable.io Container Security into our CI/CD pipeline. We were running on GitHub Enterprise. We could integrate and scan our pipelines and containers and automate that who...
 

Also Known As

StackRox
Tenable FlawCheck, FlawCheck
 

Overview

 

Sample Customers

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: December 2025.
879,768 professionals have used our research since 2012.