Microsoft Defender XDR vs ReliaQuest GreyMatter comparison

Microsoft and ReliaQuest are both solutions in the Extended Detection and Response (XDR) category. Microsoft is ranked #4 with an average rating of 8.4, while ReliaQuest is ranked #38. Microsoft holds a 4.9% mindshare in XDR, compared to ReliaQuest’s 1.0% mindshare. Additionally, 98% of Microsoft users are willing to recommend the solution, compared to 100% of ReliaQuest users who would recommend it.

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Executive Summary

We performed a comparison between Microsoft Defender XDR and ReliaQuest GreyMatter based on real PeerSpot user reviews.

Find out in this report how the two Extended Detection and Response (XDR) solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed Microsoft Defender XDR vs. ReliaQuest GreyMatter Report (Updated: March 2026).

Buyer's Guide

Microsoft Defender XDR vs. ReliaQuest GreyMatter

March 2026

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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

Cortex XDR by Palo Alto Net...

Mindshare comparison

As of March 2026, in the Extended Detection and Response (XDR) category, the mindshare of Cortex XDR by Palo Alto Networks is 4.9%, down from 5.6% compared to the previous year. The mindshare of Microsoft Defender XDR is 4.9%, down from 6.7% compared to the previous year. The mindshare of ReliaQuest GreyMatter is 1.0%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Extended Detection and Response (XDR) Mindshare Distribution
Product	Mindshare (%)
Microsoft Defender XDR	4.9%
Cortex XDR by Palo Alto Networks	4.9%
ReliaQuest GreyMatter	1.0%
Other	89.2%

Extended Detection and Response (XDR)

Featured Reviews

ABHISHEK_SINGH

Senior Process Expert at A.P. Moller - Maersk

Gained full visibility and streamlined threat detection through behavior-based insights and AI integration

Initially, we got to have a lot of false positives when we onboarded, but nowadays it's quite smooth. We have fine-tuned our security policies and allowed different levels of policies to get rid of those false positives. Currently, we are getting a fairly good amount of incidents that are not false positives or benign, but actionable items. The process is streamlined. In the initial days, the operations used to get involved in a lot of benign and other activities, but now the process is streamlined. We are leveraging the auto-detection and remediation plans. The operations teams are now more involved in other business roles as well, not just looking into the logs and fetching out what's happening there. They have fixed a lot of things. Initially, they didn't have IAC code drift detection, cloud posture management, or security posture management, but they have those now. They purchased different vendors and did a merger with that. They have now Prisma Cloud that gets integrated and now they are working with Cortex Cloud. Everything that was negative has now been addressed, and the product altogether looks to be in a very better and mature shape now. Currently, it's more or less detecting the workloads with AI-based best practices. Since most organizations are consuming AI agents and other things, we are looking forward to seeing what other feature enhancements Palo Alto can support in that.

Read full review

Kunle Oluwadiya

House security operator at Cypress Creek Renewables

Advanced threat hunting saves significant time in tracking and responding to incidents

Microsoft Defender XDR could be improved with a lower price. My main suggestion would essentially be what Copilot is providing, which is a single pane of glass, so I don't have to go to different windows. That's just a workflow consideration for me. It would be great to have all the information centralized into one particular data app. If I need to open up extra ones, I can, however, I would appreciate a future where everything I need is right there on one single pane of glass. Beyond that, there's really nothing else I see that I would want Microsoft to improve.

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Md Yousuf Khan

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.

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

"One of the main benefits of the solution is its intelligence to correlate the events into an incident."

"Cortex XDR by Palo Alto Networks's ability to block sophisticated threats in real time is quite good and is on par with SentinelOne's."

"The dashboard is customizable."

"I can highlight that we have not faced any security incidents with Cortex XDR by Palo Alto Networks, and even though our environment is quite dynamic, we have not faced any security incident with Cortex XDR by Palo Alto Networks until now."

"Cortex XDR by Palo Alto Networks should be a stable solution."

"It's a nice product that's stable and scalable."

"Palo Alto is constantly adding new features."

"Traps pays for itself within the first 16 months of a three-year subscription."

More Cortex XDR by Palo Alto Networks pros

"The attack simulation is excellent; initially, this feature wasn't very robust, but Microsoft improved what we could achieve with it. We can now customize our practice phishing emails and include our company logo, for example. Attack simulation also helps integrate with third-party solutions where applicable and provides an overview of our security architecture through testing. The summary includes areas for improvement in our protection and what steps we need to take to get there."

"The summarization of emails is a valuable feature."

"From an attack chain perspective, Defender XDR handles phishing and spam emails easily, while Defender for Endpoint manages endpoints effectively. We've drastically improved our user experience."

"Microsoft Defender XDR's capability to automatically disrupt advanced cyber attacks is very effective."

"The best feature is probably the alert generation. When I do a security reset, the other session triggers instantly from the Defender console, and I can work on it. The policies are three times, but they are also ready to install it."

"The portal is quite user-friendly. There is integration with Office, Intune, and other products from the same portal. From there, we can see which policies are installed on a particular machine. We also can manage devices, groups, and tagging."

"The Endpoint Manager is incredible; it has a very straightforward interface and is exceedingly easy to use. Pulling out and deploying different tags or resources is a simple task across various departments with different levels of security. The notifications are also simple and satisfying; it's great to see the bubble informing us which devices are compliant and which are waiting to update."

"One of the most valuable features of Microsoft Defender XDR is its ability to provide preemptive reports regarding excessive privileged access."

More Microsoft Defender XDR pros

"ReliaQuest GreyMatter has helped us to reduce security incidents by 89%, which is a significant amount of incidents we have seen."

"ReliaQuest GreyMatter saves around 60% of time or resources."

Cons

"I think sometimes Cortex XDR agent automatically stops event capturing from the device, and then even the dashboard does not get any notifications from the agent."

"Cortex XDR by Palo Alto Networks could improve by offering remote management. It would be useful to look at the client's issue to fix it."

"Currently, we are monitoring all USB drives and ports but we would like to improve our device control capabilities."

"I feel that it should not be a licensed activity because a feature should allow us to see applications running on end devices."

"The installation should be easier and the Palo Alto pre-sales and sales teams should have more information on the product because they don't know what they are selling."

"Previously, the endpoint would leave the environment, not being on our VPN, essentially unable to interact with the server to upload files. It was unable to retrieve new file verdicts. It was using a thing called "local analysis" to determine if something was a malicious file or not. There was no dynamic analysis."

"It's more focused on network communication. If a customer wants to increase the level of protection and start working with documents, it's impossible to integrate these features into the system. It's more of a communication-oriented system than a content security-oriented system."

"Managing the product should be easier."

More Cortex XDR by Palo Alto Networks cons

"In the beginning, it's difficult to navigate the system because it is quite large. Just trying to find your way and understand how the system works can be hard. After spending quite a lot of time searching it's a lot easier, but I wish it were a bit more user-friendly when you're trying to find things."

"The support from Microsoft could improve. There are times I have to wait for a response from a qualified specialist."

"Because of the training model, Defender XDR's automatic response sometimes blocks legitimate users and activities. Also, the UI sometimes responds slowly."

"Customers say they want absolutely seamless integration between other Microsoft solutions and Defender XDR, including the ability to change device settings within the Defender portal. They need to contact the IT team responsible for the device management tools to change some settings. They would prefer that those changes be initiated directly from the Defender portal or applied from Intune without involving the IT operations team."

"There are a few technical issues with Defender XDR that can be improved. Sometimes, the endpoint devices are not reporting properly to the Defender 365 portal. When you're getting all the information from the Microsoft portal, the devices are sometimes not in sync. We have hundreds of endpoint devices, some needing to be onboarded again."

"The abundance of sub-dashboards and sub-areas within the main dashboard can be confusing, even if it all technically makes sense."

"For some scenarios, it provides good visibility into threats, and for some scenarios, it doesn't. For example, sometimes the URLs within the emails have destinations, and you do get a screenshot and all further details, but it's not always the case. It would be good if they did a better job of enabling that for all the emails that they identified as malicious. When you get an email threat, you can go into the email and see more details, but the URL destination feature doesn't always show you a screenshot of the URL in that email. It also doesn't always give you the characteristics relating to that URL. It would be quite good if the information is complete where it says that we identified this URL, and this is what it looks like. There should be some threat intel about it. It should give you more details."

"It would be highly beneficial if CoPilot could identify anomalies within the network and notify the IT team."

More Microsoft Defender XDR cons

"Areas that have room for improvement include user interface and integration."

Pricing and Cost Advice

"I don't like that they have different types of licenses."

"The pricing is okay, although direct support can be expensive."

"The tool's price is moderate."

"It's about $55 per license on a yearly basis."

"Cortex XDR's pricing is ok."

"Compared to CrowdStrike, Cortex XDR is an expensive solution."

"The price of the product is not very economical."

"I did PoCs on products called Cylance and CrowdStrike. Although, I consider these products and they were also good, when it come to cost and budgetary factors, Traps has been proven to be better than the other two products. It is quite cost-effective and delivers all the entire solution which we require."

More Cortex XDR by Palo Alto Networks pricing and cost advice

"For Defender, they have Endpoint Plan 1 and Endpoint Plan 2, but I don't know on what basis they have classified Endpoint Plan 1 and Plan 2, but it has given me enough pain to pick and design Endpoint Plan 1 or Endpoint Plan 2 for my organization. In fact, we are still struggling with it. Too many SKUs are confusing. There should not be too many SKUs, and they shouldn't charge for every new feature."

"The license cost for a year is approximately forty-four thousand, and this annual saving is a significant factor in our decision to switch."

"Defender plan 1 is tenant-wise, and Defender plan 2 is per-user, which makes it more expensive. To have certain features, you would need to purchase the E5 license. For all of the capabilities that the tool provides, the price, though it can be high, is fair."

"Microsoft Defender XDR is expensive."

"The price of the solution is high compared to others and we have lost some customers because of it."

"It is fairly priced because we get complete integrated services with the E5 license."

"The licensing fee for Microsoft 365 Defender is fair."

"I would like to have more security features in the lower licenses because not every customer is able to buy E5 licenses. The bundling isn't always easy for our customers to understand. Compared to other tools, it's a good price."

More Microsoft Defender XDR pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

Manufacturing Company

Financial Services Firm

Comms Service Provider

Computer Software Company

12%

Financial Services Firm

Manufacturing Company

Comms Service Provider

Financial Services Firm

10%

Manufacturing Company

10%

Retailer

Healthcare Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	44
Midsize Enterprise	20
Large Enterprise	47

By reviewers
Company Size	Count
Small Business	46
Midsize Enterprise	26
Large Enterprise	39

No data available

Questions from the Community

Cortex XDR by Palo Alto vs. Sentinel One

Cortex XDR by Palo Alto vs. SentinelOne SentinelOne offers very detailed specifics with regard to risks or attacks. ...

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Comparing CrowdStrike Falcon to Cortex XDR (Palo Alto)

Cortex XDR by Palo Alto vs. CrowdStrike Falcon Both Cortex XDR and Crowd Strike Falcon offer cloud-based solutions th...

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How is Cortex XDR compared with Microsoft Defender?

Microsoft Defender for Endpoint is a cloud-delivered endpoint security solution. The tool reduces the attack surface,...

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What do you like most about Microsoft 365 Defender?

Microsoft Defender XDR provides strong identity protection with comprehensive insights into risky user behavior and p...

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What is your experience regarding pricing and costs for Microsoft 365 Defender?

My experience with pricing, setup, costs, and licensing of Microsoft Defender XDR is tied to our E5 subscription, whi...

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What needs improvement with Microsoft 365 Defender?

I am not aware of a mobile app that would be available for my team. With a single analyst, if she is ever away, it wo...

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Comparisons

Microsoft Defender for Endpoint vs Cortex XDR by Palo Alto Networks

Compared 9% of the time

SentinelOne Singularity Complete vs Cortex XDR by Palo Alto Networks

Compared 6% of the time

CrowdStrike Falcon vs Cortex XDR by Palo Alto Networks

Compared 4% of the time

Cortex XSIAM vs Cortex XDR by Palo Alto Networks

Compared 4% of the time

TrendAI Vision One vs Cortex XDR by Palo Alto Networks

Compared 2% of the time

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CrowdStrike Falcon vs Microsoft Defender XDR

Compared 11% of the time

Wazuh vs Microsoft Defender XDR

Compared 7% of the time

Microsoft Defender for Cloud vs Microsoft Defender XDR

Compared 5% of the time

SentinelOne Singularity Complete vs Microsoft Defender XDR

Compared 4% of the time

IBM Security QRadar vs Microsoft Defender XDR

Compared 2% of the time

More Microsoft Defender XDR Competitors

CrowdStrike Falcon vs ReliaQuest GreyMatter

Compared 12% of the time

Expel vs ReliaQuest GreyMatter

Compared 10% of the time

Arctic Wolf Managed Detection and Response vs ReliaQuest GreyMatter

Compared 7% of the time

Red Canary vs ReliaQuest GreyMatter

Compared 6% of the time

Daylight Security AI-Powered MDR vs ReliaQuest GreyMatter

Compared 3% of the time

More ReliaQuest GreyMatter Competitors

Product Reports

Buyer's Guide

Cortex XDR by Palo Alto Networks

March 2026

Download Cortex XDR by Palo Alto Networks product report

Buyer's Guide

Microsoft Defender XDR

March 2026

Download Microsoft Defender XDR product report

Buyer's Guide

Digital Risk Protection

March 2026

Download ReliaQuest GreyMatter product report

Also Known As

Cyvera, Cortex XDR, Palo Alto Networks Traps

Microsoft 365 Defender, Microsoft Threat Protection, MS 365 Defender

No data available

Overview

Cortex XDR by Palo Alto Networks provides advanced threat detection with AI-driven endpoint protection and seamless integration, ensuring multi-layered security and automatic threat response.

Cortex XDR is designed to safeguard endpoints against malware and suspicious activities. It offers advanced threat detection and response capabilities using behavioral analysis, AI, and machine learning. It seamlessly integrates with security infrastructures, providing endpoint security, firewall integration, and enhanced visibility in both cloud-based and on-premises environments.

What are the key features of Cortex XDR?

Advanced Threat Detection: Uses AI and machine learning for proactive threat identification.
Multi-layered Security: Combines various security measures for comprehensive protection.
Endpoint Protection: Safeguards against malware and exploits.
Behavioral Analysis: Monitors suspicious activity for early detection.
Automatic Threat Response: Automates responses to neutralize threats.

What benefits should users expect?

Ease of Use: Simplifies security management with intuitive design.
Resource Efficiency: Minimizes impact on system resources.
Integration Capabilities: Works well with existing security setups.
Reduced Analyst Workload: Automates processes to decrease manual intervention.

Organizations in diverse sectors deploy Cortex XDR to protect against malware, leveraging its advanced threat detection capabilities. Its integration with existing security infrastructures appeals to those seeking comprehensive protection in both cloud and on-premises environments, providing enhanced visibility and threat intelligence.

Palo Alto Networks

Microsoft Defender XDR is a comprehensive security solution designed to protect against threats in the Microsoft 365 environment.

It offers robust security measures, comprehensive threat detection capabilities, and an efficient incident response system. With seamless integration with other Microsoft products and a user-friendly interface, it simplifies security management tasks.

Users have found it effective in detecting and preventing various types of attacks, such as phishing attempts, malware infections, and data breaches.

Watch the Microsoft demo video here: Microsoft Defender XDR demo video.

Microsoft

ReliaQuest GreyMatter enhances security operations by integrating tools and delivering automation that increases efficiency and visibility.

ReliaQuest GreyMatter optimizes security infrastructures through its platform by connecting disparate technologies, facilitating real-time threat detection, and responding effectively. By leveraging automation, it reduces manual workloads and improves response times. Its ability to unify operations across different tools makes it a preferred choice for maximizing productivity and maintaining a robust security posture.

What are the essential features of ReliaQuest GreyMatter?

Tool Integration: Seamlessly connects existing security tools to ensure cohesive protection.
Threat Detection: Offers real-time insights to identify potential threats promptly.
Automation: Reduces manual efforts by automating routine security processes.
Advanced Analytics: Provides enhanced data analysis for better decision-making.
Flexible Deployment: Compatible with different environments, allowing tailored implementation.

What benefits or ROI should users consider?

Increased Efficiency: Streamlined operations through integrated platforms.
Cost Reduction: Cuts down expenses by reducing manual tasks and productivity loss.
Improved Security Posture: Ensures comprehensive threat detection and response.
Scalability: Grows with organizational needs without compromising performance.
Time Savings: Accelerates incident response and resolution times.

ReliaQuest GreyMatter is effectively implemented in industries such as finance, healthcare, and energy, where security is paramount. Its ability to adapt to specific sector needs and regulatory requirements makes it versatile for targeted use in diverse environments.

ReliaQuest

Sample Customers

CBI Health Group, University Honda, VakifBank

Accenture, Deloitte, ExxonMobil, General Electric, IBM, Johnson & Johnson and many others.

Information Not Available

Buyer's Guide

Microsoft Defender XDR vs. ReliaQuest GreyMatter

March 2026

Free Report: Microsoft Defender XDR vs. ReliaQuest GreyMatter

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