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 8.3, while ReliaQuest is ranked #27 with an average rating of 9.5. Microsoft holds a 4.5% mindshare in XDR, compared to ReliaQuest’s 0.9% mindshare. Additionally, 98% of Microsoft users are willing to recommend the solution, compared to 100% of ReliaQuest users who would recommend it.

Comparison Buyer's Guide

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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: April 2026).

Buyer's Guide

Microsoft Defender XDR vs. ReliaQuest GreyMatter

April 2026

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Helped 893,244 peers since 2012

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 May 2026, in the Extended Detection and Response (XDR) category, the mindshare of Cortex XDR by Palo Alto Networks is 4.7%, down from 5.1% compared to the previous year. The mindshare of Microsoft Defender XDR is 4.5%, down from 6.1% compared to the previous year. The mindshare of ReliaQuest GreyMatter is 0.9%, 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	4.5%
Cortex XDR by Palo Alto Networks	4.7%
ReliaQuest GreyMatter	0.9%
Other	89.9%

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.

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Archana-Singh

Manager at Softcell Technologies Limited

Centralized threat detection has improved response times but still needs better integrations

Microsoft Defender XDR simplifies cross-domain investigations for the SOC team. Instead of switching between separate endpoint, email, identity, and cloud security tools, the analysts can investigate correlated incidents from a single console with unified telemetry and timelines. The best features Microsoft Defender XDR offers are cross-domain incident correlation, automated investigation and response, and unified visibility across endpoint, identity, email, and cloud workloads. The attack timeline and correlated incident view are especially valuable because they help analysts understand the full attack chain quickly without manually stitching data from multiple security tools. The automated investigation and response capabilities in Microsoft Defender XDR save a significant amount of manual effort for the SOC team. Routine tasks like alert correlation, endpoint isolation, malware analysis, and remediation recommendations are automated, which reduces analyst workload and improves response time for common incidents. One underrated feature in Microsoft Defender XDR is the unified attack timeline and identity correlation capabilities. It gives analysts a clear end-to-end view of user, email, data, device, and identity activity during an incident, which makes root cause analysis and lateral movement tracking much easier. Microsoft Defender XDR has improved our overall security visibility and helped reduce the time required to detect and respond to threats across endpoints, identities, email, and cloud workloads. It also improved our SOC efficiency by centralizing investigations and automating repetitive response actions, which reduced operational overhead significantly.

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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.

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Quotes from Members

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

Pros

"Cortex XDR can integrate the firewalls and determine the tendencies of the attacks. It's a new generation antivirus, with protection endpoints and detection response. It is very easy to use and everybody can operate the solution."

"The good thing about the product is that it's always scanning."

"The tool's use cases are relevant to security."

"Overall, it's a great platform; it integrates very well with other solutions from Palo Alto and also with our vendors, the ease of use is excellent, I love the root cause analysis from Cortex, which is amazing, and in a few clicks you can have the full root cause."

"The initial setup is easy."

"The most valuable feature of Cortex XDR by Palo Alto Networks is the low consumption of system resources. The solution uses a lot of AI and machine learning."

"The stability of this product is very good."

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

More Cortex XDR by Palo Alto Networks pros

"The incident-level visibility across the cyber attack chain when using Microsoft Defender XDR is great."

"It's a great threat intelligence source for us, providing alerts for things it detects on the network and on the machines. We've used it often when there is a potential incident to see what was done on a computer. That works quite nicely because you can see everything that the user has done..."

"The email protection feature is the most valuable because our risks primarily lie there, and it seems to be the most popular target."

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

"I have found the ability to delete unwanted threats beneficial."

"In Microsoft 365 vendor products, monitoring and connectivity across all Microsoft and third-party connectors enable viewing of all activity within those environments."

"The EDR features are valuable. By getting the EDR features, we have more control over the device. We have information about events in real-time and more protection against zero-day threats and zero-day vulnerabilities. We can monitor every event or action that a device is going through. We can get an idea if it is something malicious or if we have to take any actions."

"Microsoft 365 Defender's most valuable feature is the ability to control the shadow IP."

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

"The solution lags to the real-time scenarios here and there."

"A little bit more automation would be nice."

"Traps doesn't work with McAfee. You need to remove McAfee to install Traps. This is very common, and its nothing that should be an issue. Some antivirus engines recognize Traps as an threat component, so maybe they need to shake hands somewhere."

"They've been having some issues with updating their endpoint agents, and it has been quite frustrating."

"The configuration could be simplified. I would like to see better protection, specifically to protect email applications."

"It would be good if they could make an exception for applications. Sometimes, it can be a bit of a challenge to make exceptions for certain applications that have been used as rogue."

"It should support more mobile operating systems. That is one of the cons of their infrastructure right now."

"They have the worst support, as a company, that I have ever worked with, as they are difficult to get a hold of and keep on the phone. They don't know what they are talking about when you get them on the phone. They don't like to respond to messages when you send them to them. They like to "research problems" for weeks on end, then pass you off to somebody else."

More Cortex XDR by Palo Alto Networks cons

"When discussing the secure score, which includes overviews and recommended actions, some of these recommended actions are not applicable to us, particularly those related to Microsoft Internet Explorer, which we do not use in any of our environments."

"The dashboard should be easier to use. There is also improvement needed in the reporting when it comes to exporting or scheduling reports."

"Microsoft tends to provide too many features, which makes the solution prone to bugs."

"There could be a way to proactively monitor unusual activity ."

"The solution can improve the rules and privileges it offers."

"I do think that maybe having a feature within my organization where there are three different domains within which we have to operate would be helpful, as there is currently no unified view within the domains."

"Microsoft Defender XDR could be improved in terms of speed, especially backend speed."

"The cost can be high if you want to build custom license packages. Another area for improvement is the policies. In Azure, we need to implement policies in JSON format, but in 365 Defender 365, it would be helpful to use a different format so we can customize the platform."

More Microsoft Defender XDR cons

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

Pricing and Cost Advice

"If one wishes to work with another team or large number of users at a future point, he must purchase a license for them."

"Cortex XDR by Palo Alto Networks is quite an expensive solution."

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

"Licensing for Palo Alto Networks Cortex XDR can be costly, especially when it comes to a hundred users. A license is required for each user, and the subscription must be renewed on a yearly basis."

"This is an expensive solution."

"Cortex XDR is a costly solution."

"The solution is expensive. It's pricing is on a yearly-basis."

"The tool's price is moderate."

More Cortex XDR by Palo Alto Networks pricing and cost advice

"I believe the pricing is fair and acceptable. I consider it to be reasonable and satisfactory."

"Microsoft Defender XDR is included in our license."

"There are no issues with pricing, but sometimes, the clarity in licensing is a concern."

"Its licensing and pricing are handled by someone else. My role is limited to incidents or issues with the portal, but you get what you pay for. It is worth the cost."

"365 Defender can get expensive because you pay per gigabyte of data ingested. On the other hand, much of the data available in the other Microsoft security solutions are made available relatively cheaply—sometimes at cost or for free. Integrating only a limited set of third-party solutions with Sentinel would be cost-effective. It's much more affordable if companies only have Microsoft stuff."

"Microsoft purposely makes its license combinations complex and includes combinations like Microsoft 365 E3 and Microsoft 365 E5, Office 365 E3, Office 365 E5, and Office 365 E1, so you get confused. Microsoft tries to sell you a bundle of a lot of things together."

"I believe that the pricing of the licensing is fair."

"The product is fairly priced for what we get from it."

More Microsoft Defender XDR pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

12%

Construction Company

12%

Comms Service Provider

Manufacturing Company

Computer Software Company

11%

Financial Services Firm

Manufacturing Company

Comms Service Provider

Financial Services Firm

11%

Manufacturing Company

Construction Company

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	45
Midsize Enterprise	21
Large Enterprise	48

By reviewers
Company Size	Count
Small Business	46
Midsize Enterprise	29
Large Enterprise	40

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. ...

See all answers

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 the pricing, setup costs, and licensing of Microsoft Defender XDR is that we are on an E5 license,...

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What needs improvement with Microsoft 365 Defender?

From my perspective, Microsoft Defender XDR can be improved with better visibility in certain areas where I can trigg...

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What is your experience regarding pricing and costs for ReliaQuest GreyMatter?

I find that the pricing is cost-effective.

See all answers

What needs improvement with ReliaQuest GreyMatter?

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

See all answers

What is your primary use case for ReliaQuest GreyMatter?

I use ReliaQuest GreyMatter for detection and response, XDR, and SIEM. The best features I like about GreyMatter the ...

See all answers

Comparisons

Microsoft Defender for Endpoint vs Cortex XDR by Palo Alto Networks

Compared 9% of the time

SentinelOne Singularity Endpoint vs Cortex XDR by Palo Alto Networks

Compared 5% 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 3% of the time

TrendAI Vision One vs Cortex XDR by Palo Alto Networks

Compared 2% of the time

More Cortex XDR by Palo Alto Networks Competitors

CrowdStrike Falcon vs Microsoft Defender XDR

Compared 10% of the time

Wazuh vs Microsoft Defender XDR

Compared 6% of the time

SentinelOne Singularity Endpoint vs Microsoft Defender XDR

Compared 4% of the time

Microsoft Defender for Cloud 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 11% of the time

Expel vs ReliaQuest GreyMatter

Compared 10% of the time

SentinelOne Singularity Endpoint vs ReliaQuest GreyMatter

Compared 7% of the time

Red Canary vs ReliaQuest GreyMatter

Compared 5% of the time

Critical Insight MDR vs ReliaQuest GreyMatter

Compared 3% of the time

More ReliaQuest GreyMatter Competitors

Product Reports

Buyer's Guide

Cortex XDR by Palo Alto Networks

May 2026

Download Cortex XDR by Palo Alto Networks product report

Buyer's Guide

Microsoft Defender XDR

April 2026

Download Microsoft Defender XDR product report

Buyer's Guide

Digital Risk Protection

April 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

April 2026

Free Report: Microsoft Defender XDR vs. ReliaQuest GreyMatter

Find out what your peers are saying about Microsoft Defender XDR vs. ReliaQuest GreyMatter and other solutions. Updated: April 2026.

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