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Microsoft Defender for IoT vs Tenable OT 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

Microsoft Defender for IoT
Ranking in Operational Technology (OT) Security
6th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
2
Ranking in other categories
IoT Security (5th), Microsoft Security Suite (29th)
Tenable OT Security
Ranking in Operational Technology (OT) Security
4th
Average Rating
9.0
Reviews Sentiment
7.1
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2025, in the Operational Technology (OT) Security category, the mindshare of Microsoft Defender for IoT is 5.4%, up from 3.5% compared to the previous year. The mindshare of Tenable OT Security is 12.4%, down from 13.5% 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.
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.

Quotes from Members

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

Pros

"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."
"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."
"The initial setup was very easy, and I would rate it a ten out of ten."
"The product’s price is its 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."
"The clear distinction between IT and OT that Tenable OT provides is its most valuable feature."
"The product has easy-to-manage features and components."
"The active query inventory is the most valuable feature."
"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."
 

Cons

"The primary area that needs improvement is compatibility with the latest IoT technologies."
"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 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."
"As an IT security professional, I would like to see automation improvements in the response part of Tenable OT Security."
"The solution should provide more features to prevent attacks."
"Tenable OT product is good, but OT security itself is still maturing."
"The solution could detect changes in reading variables. The support of IoT devices can be improved."
"As an IT security professional, I would like to see automation improvements in the response part of Tenable OT Security. However, I understand that implementing automation in OT environments can be quite challenging."
"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."
 

Pricing and Cost Advice

Information not available
"The tool's pricing is fair enough."
"The product is inexpensive."
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842,651 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
18%
Manufacturing Company
15%
Energy/Utilities Company
9%
Government
5%
Manufacturing Company
15%
Energy/Utilities Company
15%
Computer Software Company
10%
Financial Services Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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...
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...
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...
What do you like most about Tenable OT Security?
The product’s price is its most valuable feature.
What is your experience regarding pricing and costs for Tenable OT Security?
The pricing of Tenable OT Security is standard and comparable to market prices. It is not as expensive as most products in the similar line.
What needs improvement with Tenable OT Security?
As an IT security professional, I would like to see automation improvements in the response part of Tenable OT Security. However, I understand that implementing automation in OT environments can be...
 

Also Known As

Azure Defender for IoT
Tenable.ot
 

Overview

 

Sample Customers

Information Not Available
Nesher Cement Enterprises, City of Raleigh
Find out what your peers are saying about Microsoft Defender for IoT vs. Tenable OT Security and other solutions. Updated: March 2025.
842,651 professionals have used our research since 2012.