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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
19th
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
23rd
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 March 2026, in the Container Security category, the mindshare of Red Hat Advanced Cluster Security for Kubernetes is 2.0%, down from 2.2% compared to the previous year. The mindshare of Tenable.io Container Security is 1.1%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Red Hat Advanced Cluster Security for Kubernetes2.0%
Tenable.io Container Security1.1%
Other96.9%
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.
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

"Segmentation is the most powerful feature."
"The most valuable feature is the ability to share resources."
"The technical support is good."
"The most beneficial security feature of the product revolves around the areas of vulnerability and configuration."
"Offers easy management with authentication and authorization features"
"Scalability-wise, I rate the solution a nine out of ten."
"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."
"By using Nessus, we are able to finish testing with assured results, in half the time."
"Most valuable are the reports that are quite good, particularly the detailed ones for container image scanning."
"The tool's most valuable feature is scanning, reporting, and troubleshooting."
"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."
"The strong security provided by the product in the container environment is its most valuable feature."
"It helps us secure our applications from the build phase and identify the weaknesses from scratch."
"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."
 

Cons

"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 solution lacks features when compared to some of the competitors such as Prisma Cloud by Palo Alto Networks and has room for improvement."
"The testing process could be improved."
"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 price could be better."
"The initial setup is pretty complex. There's a learning curve, and its cost varies across different environments. It's difficult."
"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 initial setup is highly complex."
"The stability and setup phase of the product are areas with shortcomings where improvements are needed."
"I feel that in certain areas this product has false positives which the company should work on."
"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."
"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."
"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."
"Tenable.io Container Security should improve integration modules. It should also improve stability."
 

Pricing and Cost Advice

"We purchase a yearly basis license for the solution."
"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."
"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."
"The solution's pricing is neither cheap nor very expensive."
"I rate the tool's pricing a three 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."
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Top Industries

By visitors reading reviews
Financial Services Firm
28%
Computer Software Company
8%
Government
8%
Manufacturing Company
8%
Financial Services Firm
15%
Manufacturing Company
11%
Government
9%
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 Enterprise3
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 needs improvement with Tenable.io Container Security?
Several things need improvement about Tenable.io Container Security. First, they should support GitLab Ultimate. Second, Docker-based installation would be required because not everybody has proper...
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

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: March 2026.
884,933 professionals have used our research since 2012.