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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
25th
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 September 2025, in the Container Security category, the mindshare of Red Hat Advanced Cluster Security for Kubernetes is 2.1%, down from 2.4% compared to the previous year. The mindshare of Tenable.io Container Security is 1.1%, down from 1.2% 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
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.
SumeshKumar - PeerSpot reviewer
A scalable tool that needs to make its setup phase easier while improving the stability it provides
The initial setup of Tenable.io Container Security is a little bit complex. If you have a bigger cluster or container environment, then the solution's deployment phase may take more than three months since you won't directly go for the solution's block mode. To start things in the solution, you will have to deploy it in SIEM mode, while the detection mode will provide you with visibility in accordance with which you need to take actions for production, which needs time. Regarding the time taken for deployment, for detection, it may not take more than a week, but in production, it may take at least three months to be completed. For the deployment process, there are some scripts available along with some YAML files that you need to run on the cluster, specifically considering the cluster you want to focus more on before creating Tenable Cloud Security Console. After creating Tenable Cloud Security Console, you can proceed with the onboarding process.

Quotes from Members

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

Pros

"Offers easy management with authentication and authorization features"
"It is easy to install and manage."
"I like virtualization and all those tools that come with OpenShift. I also like Advanced Cluster Management and the built-in security."
"The technical support is good."
"I am impressed with the tool's visibility."
"Scalability-wise, I rate the solution a nine out of ten."
"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."
"Segmentation is the most powerful feature."
"Nessus scanner is very effective for internal penetration testing."
"The tool's most valuable feature is scanning, reporting, and troubleshooting."
"It is a scalable solution. Scalability-wise, it is a good solution."
"The strong security provided by the product in the container environment is its most valuable feature."
"The solution shows you the exploitable vulnerabilities and helps you prioritize."
"It helps us secure our applications from the build phase and identify the weaknesses from scratch."
"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."
 

Cons

"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 lacks features when compared to some of the competitors such as Prisma Cloud by Palo Alto Networks and has room for improvement."
"Red Hat is somewhat expensive."
"The support and specifications need to be up to date for the cluster technologies"
"The documentation about Red Hat Advanced Cluster Security available online is very limited... So it's very limited to the documentation."
"The solution's visibility and vulnerability prevention should be improved."
"The deprecation of APIs is a concern since the deprecation of APIs will cause issues for us every time we upgrade."
"The solution’s pricing could be improved."
"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."
"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."
"The stability and setup phase of the product are areas with shortcomings where improvements are needed."
"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 support is tricky to reach, so we would like better-oriented technical support enabled."
"Tenable.io Container Security should improve integration modules. It should also improve stability."
 

Pricing and Cost Advice

"It's a costly solution"
"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."
"Red Hat offers two pricing options for their solution: a separate price, and a bundled price under the OpenShift Platform Plus."
"The pricing model is moderate, meaning it is not very expensive."
"I rate the product’s pricing a six out of ten."
"The product does not operate on a pay-per-license model."
"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."
"I rate the tool's pricing a three out of ten."
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Top Industries

By visitors reading reviews
Financial Services Firm
26%
Computer Software Company
12%
Government
10%
Manufacturing Company
7%
Financial Services Firm
15%
Manufacturing Company
12%
Government
11%
Comms Service Provider
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 do you like most about Red Hat Advanced Cluster Security for Kubernetes?
I like virtualization and all those tools that come with OpenShift. I also like Advanced Cluster Management and the built-in security.
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 do you like most about Tenable.io Container Security?
The tool's most valuable feature is scanning, reporting, and troubleshooting.
 

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: July 2025.
866,561 professionals have used our research since 2012.