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Microsoft Defender Experts for Hunting vs ReliaQuest GreyMatter 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 Experts ...
Ranking in Managed Detection and Response (MDR)
18th
Average Rating
8.6
Reviews Sentiment
5.6
Number of Reviews
4
Ranking in other categories
No ranking in other categories
ReliaQuest GreyMatter
Ranking in Managed Detection and Response (MDR)
27th
Average Rating
9.6
Reviews Sentiment
8.1
Number of Reviews
2
Ranking in other categories
Digital Risk Protection (21st), Extended Detection and Response (XDR) (38th)
 

Mindshare comparison

As of March 2026, in the Managed Detection and Response (MDR) category, the mindshare of Microsoft Defender Experts for Hunting is 1.7%, up from 1.7% compared to the previous year. The mindshare of ReliaQuest GreyMatter is 1.6%, down from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Managed Detection and Response (MDR) Mindshare Distribution
ProductMindshare (%)
Microsoft Defender Experts for Hunting1.7%
ReliaQuest GreyMatter1.6%
Other96.7%
Managed Detection and Response (MDR)
 

Featured Reviews

Mondher-Smii - PeerSpot reviewer
Cybersecurity Manager at Insomea
Has supported clients in managing incidents through clear pricing and hybrid deployment options
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. The onboarding of the product on the customer's environment is straightforward. We can use it in a hybrid environment, in the cloud, or on-premise environment. This is the main advantage regarding this product. If it's configured correctly, everything will be good, resilient, and secure, which supports threat mitigation efforts depending on the configuration on the tenant and the parameters on Microsoft Defender Experts for Hunting. Threat intelligence updates have some impact on our overall security posture. They give us external eyes regarding threat actors, which is good. It's very helpful to enrich the SIEM, which is Microsoft Sentinel. It's a good feature that we can include threat intel on the product.
MK
Senior Security Analyst at Tata Consultancy
Unified security monitoring has reduced alert fatigue and improves proactive threat hunting
I use real-time monitoring in ReliaQuest GreyMatter, which significantly improves my security posture. The unified interface helps reduce alert fatigue. I would estimate it saves around 20% in alert fatigue reduction. The automated threat hunting capabilities in ReliaQuest GreyMatter help me stay ahead of threats. The machine learning algorithm benefits my threat intelligence by providing deeper insights and predictions. I use various metrics to rate the success of the predictive threat intelligence in ReliaQuest GreyMatter.

Quotes from Members

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

Pros

"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."
"Easy to use is what my customers say is the biggest benefit of Microsoft Defender Experts for Hunting for them."
"The solution helps to detect some suspicious items for us and our clients."
"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."
"ReliaQuest GreyMatter saves around 60% of time or resources."
"ReliaQuest GreyMatter has helped us to reduce security incidents by 89%, which is a significant amount of incidents we have seen."
 

Cons

"The solution’s user interface could be improved."
"There is a lot of change in a small period. This might not be helpful for IT administrators and users."
"There is a lot of change in a small period. This might not be helpful for IT administrators and users."
"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."
"Areas that have room for improvement include user interface and integration."
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Top Industries

By visitors reading reviews
Computer Software Company
23%
Financial Services Firm
9%
Comms Service Provider
6%
Energy/Utilities Company
6%
Financial Services Firm
10%
Manufacturing Company
9%
Retailer
8%
Construction Company
7%
 

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?
Microsoft now changes a lot in products, which might be a disadvantage right now. There is a lot of change in a small period. This might not be helpful for IT administrators and users. New features...
What is your primary use case for Microsoft Defender Experts for Hunting?
Right now we manage some firewalls using Microsoft products. In regard to Microsoft Defender Experts for Hunting, I have been working with this product so far. Mainly and basically for incident han...
What advice do you have for others considering Microsoft Defender Experts for Hunting?
The pricing, engineers behind Microsoft Defender Experts for Hunting, changes, and support services make the difference compared to other products. In terms of pricing, the solution is good, and th...
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Overview

Find out what your peers are saying about Huntress, CrowdStrike, Field Effect and others in Managed Detection and Response (MDR). Updated: February 2026.
885,311 professionals have used our research since 2012.