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Red Hat Advanced Cluster Security for Kubernetes vs Tenable Cloud Security comparison

 

Comparison Buyer's Guide

Executive Summary

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
20th
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
12
Ranking in other categories
No ranking in other categories
Tenable Cloud Security
Ranking in Container Security
23rd
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
12
Ranking in other categories
Identity and Access Management as a Service (IDaaS) (IAMaaS) (15th), Cloud Workload Protection Platforms (CWPP) (14th), Cloud Security Posture Management (CSPM) (15th), Cloud-Native Application Protection Platforms (CNAPP) (12th), Cloud Infrastructure Entitlement Management (CIEM) (2nd)
 

Mindshare comparison

As of May 2026, in the Container Security category, the mindshare of Red Hat Advanced Cluster Security for Kubernetes is 1.7%, down from 2.2% compared to the previous year. The mindshare of Tenable Cloud Security is 1.9%, up from 1.3% 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 Kubernetes1.7%
Tenable Cloud Security1.9%
Other96.4%
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.
CD
Information Security Architect at WSP
Has significantly improved proactive monitoring through automated asset discovery and seamless integration with cloud environments
Making the system smarter would be beneficial. Adding modules for integration with AWS and Azure would be helpful. Adding capabilities for the scanner to automatically pick up changes and add assets automatically would be valuable. When discussing a big company, it is mandatory to have tools that will assist us rather than waiting for manual input to add hosts. Adding assets manually is prone to mistakes. Humans might forget to add an asset or make errors when adding multiple assets. Taking the human element out of the context and making it more streamlined is the future for security. The human should be involved where expertise is needed, such as analysis and decision-making. Currently, with resource constraints, we need tools to collect and aggregate data, eliminate false positives as much as possible, and present relevant information to employees for action.

Quotes from Members

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

Pros

"The most valuable feature is the ability to share resources."
"I like virtualization and all those tools that come with OpenShift. I also like Advanced Cluster Management and the built-in security."
"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 technical support is good."
"I am impressed with the tool's visibility."
"The most valuable feature of the solution is its monitoring feature."
"The most valuable feature is the ability to share resources."
"Scalability-wise, I rate the solution a nine out of ten."
"Tenable Cloud Security excels in vulnerability detection, one of its strongest features. Another valuable feature is software composition analysis, which highlights and automates the detection of security flaws. Additionally, their knowledge base is excellent; if anything goes wrong, they provide clear guidance on what needs to be done to address specific vulnerabilities."
"The product's deployment phase is easy."
"The solution’s vulnerability management feature has helped us identify and mitigate risks well."
"If you have multi-cloud tenancy using AWS and Azure, you can have a single dashboard where you can onboard all the cloud infrastructure and have visibility into it."
"The analytical and reporting capabilities are pretty straightforward and show every transaction and major attempt to attack the application in the cloud."
"Scanning and reporting are the most valuable features of Tenable Cloud Security"
"Ermetic can provide super visibility for our cloud environment (we are using AWS), the dashboard is simple to use, the findings provide all of the information you require, it provides detection and remediation, and creating a Jira ticket from a finding is just one click away."
"Tenable Cloud Security has positively impacted my organization with risk reduction and compliance."
 

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."
"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."
"Red Hat is somewhat expensive."
"The support and specifications need to be up to date for the cluster technologies"
"The deprecation of APIs is a concern since the deprecation of APIs will cause issues for us every time we upgrade."
"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 documentation about Red Hat Advanced Cluster Security available online is very limited... So it's very limited to the documentation."
"The initial setup is pretty complex. There's a learning curve, and its cost varies across different environments. It's difficult."
"There is a need for the support team to improve their response time since it is one of the areas where the product's technical team has certain shortcomings."
"I didn't find anything that wasn't useful or needed to be added."
"We still maintain Tenable Cloud Security but have reduced the number of licenses. We now use it occasionally to validate specific items rather than monitoring the entire surface, for which we use Element."
"Ermetic needs to improve its security scanning. I would like to see more dynamic graphical forms."
"The product must provide more features."
"Tenable needs to offer a patch-based solution since it is an area where the tool lacks a bit."
"If Tenable Cloud Security offers a complete Cnapp solution with CWP, CIEM, and Waap security, it will be able to compete with other competitors."
"I have faced several bug incidents with the solution"
 

Pricing and Cost Advice

"The pricing model is moderate, meaning it is not very expensive."
"We purchase a yearly basis license for the solution."
"It's a costly solution"
"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."
"The tool's pricing is fair."
"The tool's price is good compared to other brands. The tool's subscription is for a year."
"There is a need to opt for a subscription-based pricing model to use Tenable Cloud Security. I rate the product price an eight on a scale of one to ten, where one is low price and ten is high price."
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Top Industries

By visitors reading reviews
Financial Services Firm
29%
Computer Software Company
8%
Government
7%
Manufacturing Company
6%
Government
11%
Financial Services Firm
10%
Manufacturing Company
9%
Computer Software Company
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 Business5
Midsize Enterprise2
Large Enterprise5
 

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 Cloud Security?
Making the system smarter would be beneficial. Adding modules for integration with AWS and Azure would be helpful. Adding capabilities for the scanner to automatically pick up changes and add asset...
What is your primary use case for Tenable Cloud Security?
We had other solutions that we used. One solution was that we did not have something exactly similar to what Element is doing. For example, we were using Bitsight, Evelin, and also Tenable Cloud Se...
What is your experience regarding pricing and costs for Ermetic CSPM?
I wasn't involved with the pricing, setup cost and licensing for Tenable Cloud Security.
 

Also Known As

StackRox
Ermetic, Ermetic Identity Governance for AWS
 

Overview

 

Sample Customers

City National Bank, U.S. Department of Homeland Security
Tyler Technologies, Bilfinger, BarkBox, MongoDB, airSlate, Adama, Latch, Cloudinary, Riskified, AppsFlyer, IntelyCare, Aidoc, 42Dot, and more.
Find out what your peers are saying about Red Hat Advanced Cluster Security for Kubernetes vs. Tenable Cloud Security and other solutions. Updated: April 2026.
894,738 professionals have used our research since 2012.