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Microsoft Defender Experts for Hunting vs UnderDefense comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 8, 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

Microsoft Defender Experts ...
Ranking in Managed Detection and Response (MDR)
18th
Average Rating
9.0
Reviews Sentiment
6.3
Number of Reviews
5
Ranking in other categories
No ranking in other categories
UnderDefense
Ranking in Managed Detection and Response (MDR)
10th
Average Rating
10.0
Reviews Sentiment
7.2
Number of Reviews
5
Ranking in other categories
Endpoint Detection and Response (EDR) (22nd), Security Orchestration Automation and Response (SOAR) (10th), SOC as a Service (4th), Extended Detection and Response (XDR) (15th), Compliance Management (10th), AI-SOC (8th), AI-Powered Security Automation (4th)
 

Mindshare comparison

As of November 2026, in the Managed Detection and Response (MDR) category, the mindshare of Microsoft Defender Experts for Hunting is 1.3%, down from 1.6% compared to the previous year. The mindshare of UnderDefense is 0.8%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Managed Detection and Response (MDR) Mindshare Distribution
ProductMindshare (%)
UnderDefense0.8%
Microsoft Defender Experts for Hunting1.3%
Other97.9%
Managed Detection and Response (MDR)
 

Featured Reviews

Joe Cicero - PeerSpot reviewer
Chief Marketing Officer at a computer software company with 201-500 employees
Proactive threat hunting has strengthened our defenses and provides expert support for incidents
Proactive threat hunting as well as the Ask an Expert feature, which is a button inside of the XDR portal that becomes available when the customer owns Microsoft Defender Experts for Hunting, are the best features it offers. If a customer or one of our analysts needs extra support or has a question about a Microsoft Defender Experts for Hunting notification, they can click on that button and chat directly with a Microsoft security analyst to get more information or fill in any gaps regarding the Ask an Expert feature. Improved detection rates are one of the specific outcomes that show the positive impact because Microsoft Defender Experts for Hunting is a second set of eyes or a second team looking for emerging threats within a shared customer's environment. For us, the proactive approach that Microsoft Defender Experts for Hunting is always running is valuable, and we see those alerts pop up inside of our incident queues in Microsoft Sentinel and we respond and acknowledge them. In many cases, Microsoft might see an alert from a zero-day that we aren't even aware of yet or the industry isn't aware of yet and we see that tagged within our incident queue, which allows us to follow up with it much sooner than had we had to search and detect for it ourselves. Microsoft Defender Experts for Hunting helps my customers detect or prevent emerging threats that are not yet published but Microsoft has visibility into. Microsoft Defender Experts for Hunting's reporting and analytics are clear and actionable, and the fact that it's tied to the MITRE framework puts it all in a common language. Microsoft Defender Experts for Hunting helps my customers comply with industry regulations or standards, though I am unsure how, but many have requirements for threat hunting and this checks that box. Microsoft Defender Experts for Hunting helps my team respond to incidents by providing a backstop, which does speed up the process and improve outcomes.
Ivan Voitovych - PeerSpot reviewer
Founder at Urlicer
AI-driven SOC triage has transformed threat monitoring and keeps our security work focused
The best features UnderDefense offers include mostly triage in-context signals read together across my stack, where one finding replaces many separate checks. A good thing too is its false positive suppression, as I do not get false notifications. Normal activity such as traffic spikes during customer events is recognized and documented, and only the unusual cases reach me. It has full-time support 24/7 with proactive reports, and monitoring runs around the clock. Reports and alerts come to me without even noticing or asking, so it is very useful. My team sees what happened without having to chase it. I find the proactive reporting and 24/7 support to have definitely made a real difference. Proactive reports mean I hear about what happened without having to ask, so I know the state of things at the start of the day, and 24/7 support matters most for traffic spikes and other events outside busy working hours, as I get an answer when I need one without keeping someone on call just in case, saving me a lot of time. Together, they let my team stay on infrastructure work and step in only when a decision is needed. Regarding UnderDefense's AI capabilities, I think the governance and security is the best there is, as the decisions that matter stay with my team and each finding is documented, allowing me to review afterwards how a conclusion was reached. That control and traceability is what I need from AI in a security role. The accuracy and reliability of UnderDefense's AI output is accurate and steady, as findings have matched what I saw when I checked them, and the pattern assessments are consistent, especially during large traffic events or spikes, which is when I depend on them most. When a case needs judgment, the reasoning is there so I can confirm it myself.

Quotes from Members

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

Pros

"Microsoft Defender Experts for Hunting helps my customers detect or prevent emerging threats that are not yet published but Microsoft has visibility into."
"What really stands out about Microsoft Defender Experts for Hunting is that it's easy to use, the cost is clear, and the pricing is transparent, with straightforward onboarding in hybrid, cloud, or on-premise environments."
"The best feature of this solution is that it is an integrated and comprehensive solution for the entire Microsoft ecosystem."
"The solution helps to detect some suspicious items for us and our clients."
"Easy to use is what my customers say is the biggest benefit of Microsoft Defender Experts for Hunting for them."
"Routine signals are handled and documented, and only cases that need a human decision reach my team, allowing engineers to spend their time on infrastructure hardening instead of log digging."
"The linking, the filtering, and the readable reasoning each help on their own, but together, they allow a small security team to handle the volume our platform produces without losing sight of the cases that matter."
"UnderDefense groups it into one alert with the caller, the endpoint, and the usual pattern, which allows us to contact the customer the same day with facts in hand."
"Every morning we look at a short list of cases that matter instead of a long list of raw alerts, and each case comes with the full picture, so we can decide in a few minutes whether it needs action."
"UnderDefense Gen AI SOC flags behavior that breaks from an account's own baseline, lays out which signals triggered the alert and why it reads as different from normal activity, and helps our team decide within the same day whether we are seeing a legitimate big campaign push or a compromised login."
 

Cons

"We tried the proactive threat hunting feature, but it was not a good experience with Microsoft Defender Experts for Hunting. It created more trouble than expected with false positives and non-expected answers."
"The solution’s user interface could be improved."
"The price of the solution is costly, which I find significant."
"There is a lot of change in a small period. This might not be helpful for IT administrators and users."
"As a partner, Microsoft Defender Experts for Hunting could be improved by getting earlier threat detection signals so we could proactively research on our own end and help support a campaign to raise awareness as well as proactive response."
"UnderDefense could improve in onboarding, which takes some dedicated time because the baseline for our high volume upload events needs to be set up first."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
11%
Manufacturing Company
7%
Comms Service Provider
7%
Manufacturing Company
39%
Construction Company
13%
Security Firm
11%
Outsourcing Company
9%
 

Company Size

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

Questions from the Community

What needs improvement with Microsoft Defender Experts for Hunting?
As a partner, Microsoft Defender Experts for Hunting could be improved by getting earlier threat detection signals so we could proactively research on our own end and help support a campaign to rai...
What is your primary use case for Microsoft Defender Experts for Hunting?
As a working security partner, my main use case for Microsoft Defender Experts for Hunting is that many of our customers also have Microsoft Defender Experts for Hunting and really find a lot of va...
What advice do you have for others considering Microsoft Defender Experts for Hunting?
As a partner, there can be some concern that Microsoft Defender Experts for Hunting is taking away some of our business because they're providing a solution that we also provide. However, the t...
What is your primary use case for UnderDefense?
Our main use case for UnderDefense Agentic AI SOC is to watch how accounts actually use our platform. Our product is a large database of creator data that customers search and export, so the bigges...
What is your experience regarding pricing and costs for UnderDefense?
The experience with pricing, setup cost, and licensing has been fair for what we get. Compared with building the same coverage in-house, it is a much lower cost and did not require us to hire. The ...
What needs improvement with UnderDefense?
UnderDefense could improve in onboarding, which takes some dedicated time because the baseline for our high volume upload events needs to be set up first. It is worth it for accurate triage later, ...
 

Interactive Demo

Demo not available
 

Overview

 

Sample Customers

Information Not Available
Kyte, Betsson Grourp, Mammut, Accedian.
Find out what your peers are saying about CrowdStrike, SentinelOne, Huntress and others in Managed Detection and Response (MDR). Updated: October 2026.
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