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Microsoft Defender for IoT vs Tenable OT Security comparison

Microsoft and Tenable are both solutions in the Operational Technology (OT) Security category. Microsoft is ranked #6 with an average rating of 8.0, while Tenable is ranked #4 with an average rating of 8.8. Microsoft holds a 5.2% mindshare in OT, compared to Tenable’s 12.8% mindshare. Additionally, 100% of Microsoft users are willing to recommend the solution, compared to 100% of Tenable users who would recommend it.
Microsoft Defender for IoT
Read 2 Microsoft Defender for IoT reviews
  • 709 Views
  • 553 Comparison Views
100% willing to recommend
Tenable OT Security
Read 5 Tenable OT Security reviews
  • 2,079 Views
  • 1,674 Comparison Views
100% willing to recommend
 

Comparison Buyer's Guide

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Executive Summary
We performed a comparison between Microsoft Defender for IoT and Tenable OT Security based on real PeerSpot user reviews.

Find out in this report how the two Operational Technology (OT) Security solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

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To learn more, read our detailed Microsoft Defender for IoT vs. Tenable OT Security Report (Updated: January 2025).
Buyer's Guide
Microsoft Defender for IoT vs. Tenable OT Security
January 2025
Download the complete report
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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

Microsoft Defender for IoT
Ranking in Operational Technology (OT) Security
6th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
2
Ranking in other categories
IoT Security (5th), Microsoft Security Suite (32nd)
Tenable OT Security
Ranking in Operational Technology (OT) Security
4th
Average Rating
8.8
Reviews Sentiment
6.8
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2025, in the Operational Technology (OT) Security category, the mindshare of Microsoft Defender for IoT is 5.2%, up from 3.5% compared to the previous year. The mindshare of Tenable OT Security is 12.8%, up from 12.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operational Technology (OT) Security
 

Featured Reviews

William Tuleja - PeerSpot reviewer
Integration with existing tools boosts management efficiency
The only improvement I see is that some detection explanations are vaguely provided by Microsoft, resulting in generic IoT detections that alert me to an issue yet don't specify what's wrong. Often, it just links back to a generic KB article without additional information. When it happens, it requires extra detective work. This issue doesn't occur often but can be annoying.
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AnandKumar2 - PeerSpot reviewer
Helps identify vulnerabilities and risks for IT and OT assets
Tenable OT Security is fine, but I find it more language-based rather than structured. It feels like something is on a web page, and the dashboards and data representations are not cool. First of all, I said that the tool view should be improved. It looks pretty old. Second, the details Tenable OT Security provides regarding the metadata they work with should be more in-depth. Its main focus is vulnerability management, which is fine, but what about threat actors? What about attack vectors and OT vulnerabilities? There are major areas, baselines, etc. that need attention.
Read full review

Quotes from Members

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

Pros

"Mainly, it is manageable and integrates with other Microsoft products, which is crucial for me."
"It is manageable and integrates with other Microsoft products, which is crucial for me."
"I find Microsoft Defender very effective in vulnerability management and it provides good attack reduction, making it a next-generation protection solution."
"I believe it is best suited for cloud services and is unmatched by other cloud security solutions."
"The product has easy-to-manage features and components."
"The active query inventory is the most valuable feature."
"It's for securing the vulnerability of the OT solutions they are using. We mitigate those through patch management activities and find vulnerabilities easily with this security solution."
"I like Tenable OT Security for two main reasons. Firstly, it helps identify vulnerabilities and risks for IT and OT assets, which is crucial for our operations. Secondly, it performs external port scanning, including vulnerability scans for open ports. Compared to the Claroty Platform, the tool offers detailed asset discovery capabilities."
"The product’s price is its most valuable feature."
 

Cons

"The only improvement I see is that some detection explanations are vaguely provided by Microsoft, resulting in generic IoT detections that alert me to an issue yet don't specify what's wrong."
"Customer service and support from Microsoft are costly. The execution by engineers is expensive, and the service is neither free nor toll-free, making it less accessible for customers."
"The only improvement I see is that some detection explanations are vaguely provided by Microsoft, resulting in generic IoT detections that alert me to an issue yet don't specify what's wrong."
"The primary area that needs improvement is compatibility with the latest IoT technologies."
"The solution could detect changes in reading variables. The support of IoT devices can be improved."
"Tenable.ot's integration with one of the products needs improvement."
"Tenable OT Security is fine, but I find it more language-based rather than structured. It feels like something is on a web page, and the dashboards and data representations are not cool. First of all, I said that the tool view should be improved. It looks pretty old. Second, the details Tenable OT Security provides regarding the metadata they work with should be more in-depth. Its main focus is vulnerability management, which is fine, but what about threat actors? What about attack vectors and OT vulnerabilities? There are major areas, baselines, etc. that need attention."
"The solution should provide more features to prevent attacks."
"Tenable OT product is good, but OT security itself is still maturing."
 

Pricing and Cost Advice

Information not available
"The tool's pricing is fair enough."
"The product is inexpensive."
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Use our free recommendation engine to learn which Operational Technology (OT) Security solutions are best for your needs.
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Top Industries

By visitors reading reviews
Manufacturing Company
17%
Computer Software Company
16%
Energy/Utilities Company
11%
Financial Services Firm
5%
Manufacturing Company
16%
Energy/Utilities Company
13%
Computer Software Company
12%
Financial Services Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Defender for IoT?
The solution is relatively expensive with licensing being based on each device. The cost per license might not be affordable for every organization, and I would rate it around six out of ten on a s...
See all answers
What needs improvement with Microsoft Defender for IoT?
The primary area that needs improvement is compatibility with the latest IoT technologies. Microsoft needs flexibility to ensure good compatibility with new IoT solutions, which frequently introduc...
See all answers
What is your primary use case for Microsoft Defender for IoT?
My primary use case for Microsoft Defender for IoT is security. It helps with vulnerability management and provides significant attack reduction. It functions as a next-generation protection soluti...
See all answers
What do you like most about Tenable OT Security?
The product’s price is its most valuable feature.
See all answers
What is your experience regarding pricing and costs for Tenable OT Security?
It is affordable, but it depends on the number of assets. It costs around 50K.
See all answers
What needs improvement with Tenable OT Security?
The solution could detect changes in reading variables. The support of IoT devices can be improved.
See all answers
 

Comparisons

Claroty Platform vs Microsoft Defender for IoT Logo
Claroty Platform vs Microsoft Defender for IoT
Compared 31% of the time
Nozomi Networks vs Microsoft Defender for IoT Logo
Nozomi Networks vs Microsoft Defender for IoT
Compared 28% of the time
Dragos vs Microsoft Defender for IoT Logo
Dragos vs Microsoft Defender for IoT
Compared 8% of the time
Azure Sphere vs Microsoft Defender for IoT Logo
Azure Sphere vs Microsoft Defender for IoT
Compared 6% of the time
Forescout Platform vs Microsoft Defender for IoT Logo
Forescout Platform vs Microsoft Defender for IoT
Compared 5% of the time
More Microsoft Defender for IoT Competitors
Nozomi Networks vs Tenable OT Security Logo
Nozomi Networks vs Tenable OT Security
Compared 44% of the time
Claroty Platform vs Tenable OT Security Logo
Claroty Platform vs Tenable OT Security
Compared 31% of the time
Dragos vs Tenable OT Security Logo
Dragos vs Tenable OT Security
Compared 16% of the time
SCADAfence vs Tenable OT Security Logo
SCADAfence vs Tenable OT Security
Compared 4% of the time
More Tenable OT Security Competitors
 

Product Reports

Buyer's Guide
IoT Security
December 2024
Microsoft Defender for IoT reportDownload Microsoft Defender for IoT product report
Buyer's Guide
Operational Technology (OT) Security
December 2024
Tenable OT Security reportDownload Tenable OT Security product report
 

Also Known As

Azure Defender for IoT
Tenable.ot
 

Learn More

Microsoft
Video not available
Tenable
 

Overview

Microsoft Defender for IoT is a specialized asset discovery, vulnerability management, and threat monitoring solution for IoT/OT environments. Defender for IoT is an open system that also works with tools such as Splunk, IBM QRadar, and ServiceNow.

Get in-depth operational technology (OT) asset visibility to better understand, manage and reduce your cyber risk. Tenable OT Security (formerly Tenable.ot) is an industrial security solution for your modern industrial enterprise. It can help you identify assets in your OT environment, communicate risk, prioritize action and enable your IT and OT security teams to work better together.

With a comprehensive set of security tools and reports, Tenable OT Security provides unmatched visibility across IT and OT security operations and delivers deep situational awareness across all global sites and their respective assets — from Windows servers to PLC backplanes — in a single interface.

 

Sample Customers

Information Not Available
Nesher Cement Enterprises, City of Raleigh
Buyer's Guide
Microsoft Defender for IoT vs. Tenable OT Security
January 2025
Free Report: Microsoft Defender for IoT vs. Tenable OT Security
Find out what your peers are saying about Microsoft Defender for IoT vs. Tenable OT Security and other solutions. Updated: January 2025.
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We monitor all Operational Technology (OT) Security reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.