Microsoft Defender XDR vs Stellar Cyber Open XDR comparison

Microsoft and Stellar Cyber are both solutions in the Extended Detection and Response (XDR) category. Microsoft is ranked #4 with an average rating of 8.4, while Stellar Cyber is ranked #35. Microsoft holds a 4.9% mindshare in XDR, compared to Stellar Cyber’s 2.0% mindshare. Additionally, 98% of Microsoft users are willing to recommend the solution.

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Executive Summary

We performed a comparison between Microsoft Defender XDR and Stellar Cyber Open XDR 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. Stellar Cyber Open XDR Report (Updated: February 2026).

Buyer's Guide

Microsoft Defender XDR vs. Stellar Cyber Open XDR

February 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 Stellar Cyber Open XDR is 2.0%, up from 1.4% 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%
Stellar Cyber Open XDR	2.0%
Other	88.2%

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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Jeevan Chandran

Global Director, Commercial Operations at Promasecure LLC

Automated security monitoring increases efficiency, but market visibility needs improvement

I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to cater to everyone effectively. While I have not encountered significant drawbacks so far, market penetration is challenging due to the product's newness, despite its flexibility and customization features. I find their user interface to be quite good.

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

"My advice for others looking into using Cortex is that it is very easy to use and very useful for the customer environment, whether it's a public or private one."

"Cortex XDR features advanced threat detection capabilities."

"The solution allows control over the user and his machine through Cortex XDR security policies."

"When the pandemic started, Palo Alto came up with many solutions, which helped with the quick shift from on-premises to the cloud."

"This software helps us understand any issues that may arise when someone is not at work."

"Provides behavior-based detection which offers many benefits over signature-based detection."

"The most valuable feature of Cortex XDR by Palo Alto Networks is its machine-learning capabilities. Additionally, there is full integration with other solutions."

"The solution's most valuable feature is the user interface."

More Cortex XDR by Palo Alto Networks pros

"We are able to consolidate licences and make use of many Microsoft products using this solution. If we have any Microsoft customers, we encourage them to use this solution for enterprise defence."

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

"Microsoft Defender XDR provides strong identity protection with comprehensive insights into risky user behavior and potential indicators of compromise."

"I like the easy integration and advanced possibilities. We can implement it at customer sites in a few clicks, but we can also dive deep and drill down to extended features. There's a very good starting point to get into this product and all the features from Defender."

"You can configure the product very easily."

"The common and advanced security policies for threat hunting and blocking attacks are valuable."

"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..."

"It has great stability."

More Microsoft Defender XDR pros

"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."

"It can integrate with almost any cybersecurity tool available in the market."

Cons

"If he is using a smaller company, he can depend on some other tools because Cortex XDR by Palo Alto Networks is a bit expensive."

"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."

"The main issue I could point out is the offline agents and the way that it is missing."

"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."

"If Palo Alto reduces the pricing slightly for their products, it would make them more scalable in markets such as India and globally for cybersecurity."

"While using Cortex, I noticed some aspects that could be improved, such as increasing the synchronization speed between XDR and Xnor."

"They are charging for Network Traffic Analyzer (NTA) services, so if the per GB data could be provided at a certain level free of cost or at the same cost which the customer is taking for the entire bundle, that would be better."

More Cortex XDR by Palo Alto Networks cons

"There is no comprehensive visibility, making it less user-friendly."

"Just like in any solution, the price can always be cheaper."

"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."

"The onboarding and offboarding need improvement. I work with other vendors as well, and they have an option to add a device or remove a device from the portal, whereas with Microsoft 365 Defender, we need to do that manually. However, once you do that, everything can be controlled through the portal, but getting the device onboarded and offboarded is currently manual. If we have an option to simply remove a device from the portal or get a device added from the portal, it would be more convenient. The rest of the features are similar. This is the only area where I found it different from others. I would also like to be able to simply filter with a few of the queries that are already there."

"The licensing process needs improvement and clarification, as it is currently difficult to understand which features are licensed to which users."

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

"The solution could improve by having better machine learning and AI. Additionally, the interface, documentation, and integration could be better."

"The management features could be improved, particularly in terms of better integration with Intune, Microsoft's cloud-based management solution."

More Microsoft Defender XDR cons

"Support is an issue because they have a limited number of resources."

"I would rate the stability at about five to six. The platform requires some fine-tuning, especially when integrating data sources and creating connectors."

Pricing and Cost Advice

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

"It has a yearly renewal."

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

"We pay about $50,000 USD per year for a bundle that includes Cortex XDR."

"It is "expensive" and flexible."

"The return on investment is from the user side because we have seen the performance of it increase the delivery time of the product if we are using too many web-based and on-premise applications. In indirect ways, we saw the return of investment in terms of performance and user satisfaction increase."

"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."

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

More Cortex XDR by Palo Alto Networks pricing and cost advice

"With the little idea I have about the costs, I can say that XDR tools tend to be a bit expensive. If you are using Microsoft Defender XDR, then you need to go for a subscription-based pricing model."

"The solution is too expensive."

"While Microsoft Defender XDR carries a higher cost, its ease of use compared to Defender may justify the investment."

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

"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."

"It has consistently offered highly appealing academic pricing, with distinct rates for higher education and general educational purposes."

"Microsoft Defender XDR is expensive."

"We have a lot of problems in Latin America regarding the price of Microsoft 365 Defender, because the relationship between dollars and the money of the different countries, it's is a lot. Many customers that have small businesses say that they would like the solution but it is too expensive. However, large companies do not find the cost an issue."

More Microsoft Defender XDR pricing and cost advice

"It’s a single license platform."

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Top Industries

By visitors reading reviews

Computer Software Company

10%

Financial Services Firm

Manufacturing Company

Comms Service Provider

Computer Software Company

12%

Financial Services Firm

Manufacturing Company

Comms Service Provider

Manufacturing Company

13%

Comms Service Provider

10%

Computer Software Company

Government

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	38

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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What is your experience regarding pricing and costs for Stellar Cyber Open XDR?

Pricing is a major benefit of Stellar Cyber Open XDR. I rate it between three and four on the cost scale. It offers f...

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What needs improvement with Stellar Cyber Open XDR?

I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvem...

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What is your primary use case for Stellar Cyber Open XDR?

I use Stellar Cyber Open XDR ( /products/stellar-cyber-open-xdr-reviews ) as a 24/7 security monitoring tool, especia...

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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 5% of the time

Cortex XSIAM vs Cortex XDR by Palo Alto Networks

Compared 4% of the time

Qualys Context XDR 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 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

Huntress Managed EDR vs Microsoft Defender XDR

Compared 2% of the time

More Microsoft Defender XDR Competitors

Wazuh vs Stellar Cyber Open XDR

Compared 9% of the time

Sentinel vs Stellar Cyber Open XDR

Compared 6% of the time

Microsoft Sentinel vs Stellar Cyber Open XDR

Compared 4% of the time

SentinelOne Singularity Complete vs Stellar Cyber Open XDR

Compared 4% of the time

CrowdStrike Falcon vs Stellar Cyber Open XDR

Compared 3% of the time

More Stellar Cyber Open XDR 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

February 2026

Download Microsoft Defender XDR product report

Buyer's Guide

Extended Detection and Response (XDR)

February 2026

Download Stellar Cyber Open XDR 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

Stellar Cyber Open XDR delivers an advanced, unified security solution designed for real-time threat detection and intelligent response, reducing complexity by integrating multiple tools into a single interface.

Stellar Cyber Open XDR aggregates security data from many sources to provide comprehensive threat detection and response capabilities. It offers a streamlined, user-friendly experience, allowing teams to efficiently manage incidents. By automating routine security tasks, it enhances operational efficiency and increases visibility across the entire network infrastructure.

What are the key features of Stellar Cyber Open XDR?

Open Integration: Connects with existing security tools for seamless data aggregation and correlation.
AI-Powered Analytics: Uses artificial intelligence to predict, detect, and respond to threats with high accuracy.
Automated Incident Response: Accelerates the fighting-back process through intelligent automation.
Comprehensive Dashboards: Offers clear visibility into security metrics through customizable dashboards.

What benefits or ROI should users expect?

Improved Threat Detection: Recognizes threats faster, allowing quick response to reduce potential damage.
Increased Efficiency: Reduces manual work by automating repetitive tasks, saving time for IT teams.
Cost Reduction: Consolidates security tools, decreasing overall expenditure on multiple solutions.
Enhanced Collaboration: Allows diverse security teams to work together more effectively with shared insights.

Stellar Cyber Open XDR is implemented across various industries, including finance, healthcare, and retail, offering tailored security strategies suited to industry-specific challenges. Organizations can take advantage of this integrated approach to align security operations with industry regulations efficiently.

Stellar Cyber

Sample Customers

CBI Health Group, University Honda, VakifBank

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

Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City

Buyer's Guide

Microsoft Defender XDR vs. Stellar Cyber Open XDR

February 2026

Free Report: Microsoft Defender XDR vs. Stellar Cyber Open XDR

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