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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
8th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
54
Ranking in other categories
Vulnerability Management (5th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (6th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (6th)
Red Hat Advanced Cluster Se...
Ranking in Container Security
30th
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 November 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.8%, up from 1.1% compared to the previous year. The mindshare of Red Hat Advanced Cluster Security for Kubernetes is 1.4%, 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 (%)
Qualys TotalCloud1.8%
Tenable.io Container Security1.1%
Red Hat Advanced Cluster Security for Kubernetes1.4%
Other95.7%
Container Security
 

Featured Reviews

reviewer2859021 - PeerSpot reviewer
Sr Security Engineer at a tech vendor with 5,001-10,000 employees
Risk-based triage has transformed container security and now prioritizes high-impact threats
The best features Qualys TotalCloud offers currently include managing cloud infrastructure and container security while facing major challenges such as alert fatigue. Traditional vulnerability scanners flag hundreds of CVEs on short-lived Kubernetes containers, some of which have no internet exposure or are gone before we can even triage them. I leverage Qualys TotalCloud to move beyond static CVSS. I use it to implement runtime exposure, correlation risk reprioritization, and shift-left integration. This notifies developers to fix a base image upstream rather than patching live ephemeral instances. In my work with cloud and container security, the biggest operational hurdle was alert fatigue. I use Qualys to shift left from static CVSS severity to context-aware risk prioritization. I correlated raw vulnerability data with real-time risk factors such as public network exposure, active runtime execution, or overly permissive IAM roles. This allows us to immediately drop the priority of isolated containers and escalate lower-severity CVEs that sit on an exposed, high-risk path. We can map these findings directly back to our CI/CD pipelines so developers can patch the root base images upstream. We have drastically cut down the signal-to-noise ratio, saved a lot of manual hours doing triage work, and ensured engineering effort goes directly towards high-impact risk reduction.
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

"Qualys TotalCloud has helped us view our risk structure, vulnerabilities, and security posture."
"Qualys TotalCloud's most valuable feature is its agent versatility."
"Multi-cloud visibility saves time and makes things easier, as we can also have comparability to see what configuration differences have been made from cloud to cloud."
"Qualys TotalCloud has saved our time by giving us better asset visibility and risk-based prioritization, as it has reduced the time spent manually reviewing CVEs and deciding what to address first."
"Qualys TotalCloud's most valuable feature is its ability to link clusters of assets, providing a clear model of deployments, vulnerabilities, and statuses."
"Once it is set up, Qualys has proved to be one of our greatest assets."
"The best feature would be the ability to create policies. It is easy to control and update policies as required."
"Generally, Qualys is very good at detections, whether on cloud or on-prem, and the agent allows deployment on both infrastructures, providing continuous monitoring of your assets, which is a key selling point for us."
"The most beneficial security feature of the product revolves around the areas of vulnerability and configuration."
"The most valuable feature is the ability to share resources."
"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."
"Offers easy management with authentication and authorization features"
"The technical support is good."
"The benefit of working with the solution is the fact that it's very straightforward...It is a perfectly stable product since the details are very accurate."
"I am impressed with the tool's visibility."
"It is easy to install and manage."
"Nessus scanner is very effective for internal penetration testing."
"Most valuable are the reports that are quite good, particularly the detailed ones for container image scanning."
"It is a scalable solution. Scalability-wise, it is a good solution."
"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."
"It helps us secure our applications from the build phase and identify the weaknesses from scratch."
"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."
"The solution shows you the exploitable vulnerabilities and helps you prioritize."
 

Cons

"Their customer support needs improvement."
"Regarding technical support from Qualys, they respond, but the response time can be too long. Sometimes we need to wait weeks for solutions to simple questions."
"One thing that could be improved is the user experience and navigation."
"The cloud licensing unit system is unclear, especially since "units" aren't well-defined."
"The main area needing improvement is integration. Although the team is strengthening TotalCloud, integration can be enhanced with SIEM, SOAR, ITSM, and other sources."
"Qualys's ticketing system can be confusing when assigning tasks to individuals, and support could be improved by offering instant call solutions with engineers in addition to ticket replies."
"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 patching process with Qualys Patch Management, which is part of TotalCloud, does not cover installing certain prerequisites on the servers or workstations. This shortcoming means we must rely on SCCM when any service stack updates or additional prerequisites are needed."
"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."
"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 deprecation of APIs is a concern since the deprecation of APIs will cause issues for us every time we upgrade."
"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 documentation about Red Hat Advanced Cluster Security available online is very limited... So it's very limited to the documentation."
"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."
"The stability and setup phase of the product are areas with shortcomings where improvements are needed."
"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 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."
"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 solution’s pricing could be improved."
 

Pricing and Cost Advice

"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"I am not sure about the pricing. From what I understand, it is a bit on the higher side, but I do not have the exact numbers."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"TotalCloud's price is about right where I would expect it to be."
"The cost is high, but it meets our organizational needs."
"As a middle management member, I do not have direct pricing knowledge, but based on the knowledge from our meetings, its pricing is competitive."
"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."
"Qualys TotalCloud is expensive."
"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."
"It's a costly solution"
"We purchase a yearly basis license for the solution."
"The price of Red Hat Advanced Cluster Security for Kubernetes is better than Palo Alto Prisma."
"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
Comms Service Provider
18%
Outsourcing Company
11%
Manufacturing Company
11%
Financial Services Firm
10%
Financial Services Firm
26%
Outsourcing Company
9%
Manufacturing Company
6%
Energy/Utilities Company
6%
Financial Services Firm
14%
Outsourcing Company
8%
Manufacturing Company
7%
Media Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise11
Large Enterprise38
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 is your experience regarding pricing and costs for Qualys TotalCloud?
We purchased Qualys TotalCloud for GCP and Azure as well. It is comparatively better than others regarding pricing. T...
What needs improvement with Qualys TotalCloud?
I am unsure about how Qualys TotalCloud can be improved. I do not have anything else to add about the needed improvem...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is telemetry, although I am unsure about the specifics. A quick specific examp...
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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.
What advice do you have for others considering Tenable.io Container Security?
Tenable.io Container Security is a good product. I am currently using Tenable Enclave Security. When I say metrics, I...
 

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: September 2026.
920,769 professionals have used our research since 2012.