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Microsoft Defender for Cloud vs Tenable.io Container Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

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
11th
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
39
Ranking in other categories
Vulnerability Management (11th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (1st), Cloud-Native Application Protection Platforms (CNAPP) (6th)
Microsoft Defender for Cloud
Ranking in Container Security
4th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
89
Ranking in other categories
Vulnerability Management (5th), Container Management (6th), Cloud Workload Protection Platforms (CWPP) (1st), Cloud Security Posture Management (CSPM) (3rd), Cloud-Native Application Protection Platforms (CNAPP) (4th), Data Security Posture Management (DSPM) (4th), Microsoft Security Suite (7th), Compliance Management (4th), Cloud Detection and Response (CDR) (3rd)
Tenable.io Container Security
Ranking in Container Security
27th
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 July 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.5%, up from 0.9% compared to the previous year. The mindshare of Microsoft Defender for Cloud is 5.2%, down from 6.8% compared to the previous year. The mindshare of Tenable.io Container Security is 1.0%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Microsoft Defender for Cloud5.2%
Qualys TotalCloud1.5%
Tenable.io Container Security1.0%
Other92.3%
Container Security
 

Featured Reviews

RO
IT Security Expert at Alior Bank S.A.
Unified risk scoring has improved our cloud visibility and simplifies remediation priorities
Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.
RW
Head Of IT at Cirrus Response
Cloud security has cut investigation time and now reveals threats faster but needs simpler oversight
When deploying AI applications, my key security concerns with Microsoft Defender for Cloud are data loss, leakage of data, and guardrails around the actual AI, and I am hoping that this is going to help me put those guardrails in place and identify data exfiltration. Microsoft Defender for Cloud has not helped me manage and secure multi-cloud environments, as we are 100 percent Microsoft and have not really got it in any other environment at all. I am not yet using the unified AI-powered security feature offered by Microsoft Defender for Cloud, but that is coming. I am not yet using the integrated XDR feature of Microsoft Defender for Cloud, but that is coming. I am not yet utilizing the GenAI threat protection features of Microsoft Defender for Cloud. That is also coming and a lot of that will come from learning it here. I have enabled the agentless scanning in my cloud environment with Microsoft Defender for Cloud. Assessing the impact on my workload protection without needing to install agents with Microsoft Defender for Cloud makes it a lot easier, but it also identifies a lot more, which puts more load on me sometimes. I would advise another organization considering Microsoft Defender for Cloud that it is the most logical route to follow if their whole ecosystem is Microsoft. It is easy to implement and it is very self-explanatory when doing it, making sense to just follow the steps as it is too simple, really. I would rate this review a 7.5 out of 10.
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

"One of Qualys' best features is its categorization, which allows us to see the types of assets, their security postures, and the AI-powered version of the tool."
"Qualys TotalCloud provides unified vulnerability and threat assessment for IaaS and SaaS and a single prioritized view of risk, which helps reduce my workload by not having to combine multiple sources."
"While automatic inventory detection upon connection is a helpful feature, a truly valuable capability would be assessing an environment's security posture against Azure and CIS best practices."
"Qualys TotalCloud's most valuable feature is its agent versatility."
"Qualys TotalCloud's most valuable features are its security capabilities that help identify and mitigate risk factors."
"TotalCloud provides the easiest and the best approach for cloud infrastructure management."
"I would definitely recommend Qualys TotalCloud to other users."
"If someone were to ask me to review Qualys TotalCloud, I would summarize it as an end-to-end solution for cloud security with visibility and governance-grade controls without needing to manage multiple disconnected tools."
"Scalability is great, and I would rate it a ten out of ten."
"I find Microsoft Defender for Cloud's KQL very flexible and powerful. It's really easy to search through with KQL queries to find the security breaches and incidents and to track down the breach itself."
"The product has given us more insight into potential avenues for attack paths."
"The security alerts and correlated alerts are most valuable. It correlates the logs and gives us correlated alerts, which can be fed into any security information and event management (SIEM) tool. It is an analyzed correlation tool for monitoring security. It gives us alerts when there is any kind of unauthorized access, or when there is any malfunctioning in multifactor authentication (MFA). If our Azure is connected with Azure Security Center, we get to know what types of authentication are happening in our infra."
"The features of Microsoft Defender for Cloud that I like the most are the regulatory compliance capabilities; these features have benefited my organization by improving our overall security posture."
"Most importantly, it's an integrated solution."
"The most valuable features of this solution are the remote workforce capabilities and the general experience of the remote workforce."
"Microsoft Defender for Cloud monitors our entire cloud environment. It enables conditional access and incorporates features like number matching and single sign-on for all our cloud apps. It is great for protecting against ransomware and various security threats."
"The tool's most valuable feature is scanning, reporting, and troubleshooting."
"By using Nessus, we are able to finish testing with assured results, in half the time."
"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."
"Nessus scanner is very effective for internal penetration testing."
"The strong security provided by the product in the container environment is its most valuable feature."
"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."
 

Cons

"Some major banks and insurance companies require an on-premises solution for comprehensive vulnerability management, which TotalCloud does not offer."
"Although TotalCloud is a helpful tool, some of its advanced features are still under development."
"I sometimes have difficulty detecting or uninstalling certain versions of applications, which I have to do manually."
"Qualys TotalCloud has the potential to improve by integrating a hybrid platform for comprehensive management of both on-premises and cloud infrastructures."
"Areas that need improvement in every solution include the remediation part. The remediation steps should be simple enough for everyone to understand."
"With the growing integration of AI, I would like Qualys to enhance its service offerings to better accommodate AI-related risks."
"There should be improvement from a dashboard perspective when collecting and showcasing data to lead management."
"I would like the ability to disable certain default built-in policies as they can be misleading when creating dashboards. That is the top one."
"The pricing could be improved, as it is somewhat high for smaller companies."
"I would like to see better automation when it comes to pushing out security features to the recommendations, and better documentation on the step-by-step procedures for enabling certain features."
"The product must improve its UI."
"The vulnerabilities are duplicated many times."
"Another thing that could be improved was that they could recommend processes on how to react to alerts, or recommend best practices based on how other organizations do things if they receive an alert about XYZ."
"We haven't experienced issues with Microsoft Defender for Cloud for our company size of about five hundred people. However, I've heard there might be issues with scalability for larger enterprises."
"I would rate Microsoft Defender for Cloud a six out of 10 due to its lack of necessary features to operate as a standalone solution."
"The solution could improve by being more intuitive and easier to use requiring less technical knowledge."
"Tenable.io Container Security should improve integration modules. It should also improve stability."
"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 initial setup is highly complex."
"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."
"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 solution’s pricing could be improved."
"I feel that in certain areas this product has false positives which the company should work on."
 

Pricing and Cost Advice

"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."
"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."
"Qualys TotalCloud is expensive."
"While Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive and may soon be considered overpriced."
"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."
"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"The cost is high, but it meets our organizational needs."
"It is bundled with our enterprise subscription, which makes it easy to go for it. It is available by default, and there is no extra cost for using the standard features."
"I'm not privy to that information, but I know it's probably close to a million dollars a year."
"The product's pricing policy is generally favorable."
"Microsoft Defender for Cloud is pricey, especially for Kubernetes clusters."
"Its pricing is a little bit high in terms of Azure Security Center, but the good thing is that we don't need to maintain and deploy it. So, while the pricing is high, it is native to Azure which is why we prefer using this tool."
"Currently, Microsoft offers only one plan at the enterprise level which is $15 per machine."
"This is a worldwide service and depending on the country, there will be different prices."
"Although I am outside of the discussion on budget and costing, I can say that the importance of security provided by this solution is of such importance that whatever the cost is, it is not a factor."
"The product does not operate on a pay-per-license model."
"The solution's pricing is neither cheap nor very expensive."
"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."
"I rate the product’s pricing a six out of ten."
"I rate the tool's pricing a three out of ten."
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Top Industries

By visitors reading reviews
Manufacturing Company
17%
Financial Services Firm
14%
Construction Company
8%
Comms Service Provider
7%
Financial Services Firm
12%
Computer Software Company
10%
Manufacturing Company
9%
Government
6%
Financial Services Firm
14%
Manufacturing Company
8%
Retailer
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise29
By reviewers
Company SizeCount
Small Business31
Midsize Enterprise12
Large Enterprise49
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise3
Large Enterprise4
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...
What is your primary use case for Qualys TotalCloud?
Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...
How is Prisma Cloud vs Azure Security Center for security?
Azure Security Center is very easy to use, integrates well, and gives very good visibility on what is happening acros...
What is your experience regarding pricing and costs for Microsoft Defender for Cloud?
My experience with pricing, setup costs, and licensing was that the license cost was the only consideration. Setup an...
What needs improvement with Microsoft Defender for Cloud?
To improve Microsoft Defender for Cloud, I think pricing-wise, the license price is a little bit higher from an inges...
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.
 

Also Known As

Qualys TotalCloud with FlexScan
Microsoft Azure Security Center, Azure Security Center, Microsoft ASC, Azure Defender
Tenable FlawCheck, FlawCheck
 

Interactive Demo

Demo not available
Demo not available
 

Overview

 

Sample Customers

Information Not Available
Microsoft Defender for Cloud is trusted by companies such as ASOS, Vatenfall, SWC Technology Partners, and more.
ServiceMaster
Find out what your peers are saying about Microsoft Defender for Cloud vs. Tenable.io Container Security and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.