Microsoft Defender XDR vs Stellar Cyber Open XDR comparison

Microsoft Defender XDR vs. Stellar Cyber Open XDR

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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.

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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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Hrishiraj Bhattacharjee

Founder & CEO at Team Karimganj

Correlates incidents, allows for quicker identification and helps prioritize investigations

The only challenge is, and that’s where we come into play, it’s a pretty high-tech platform. So, it’s difficult for small and medium-sized organizations to manage it on their own. It’s a very complex system. It requires a lot of expertise. All my guys who work on it have gone through certification from Stellar itself. There are three different certifications that you need to complete. Only then are you certified by Stellar to work on it. It’s a very complex platform. Not everyone can use it. A simple IT engineer or system admin won’t be able to handle it because it’s quite complex. You need to have an understanding of the industry, the subject, and the tool. So, just purchasing this tool or license and then using it on your own would be very difficult to configure and manage on a day-to-day basis. The pricing model is not suitable for small and medium companies, particularly small companies. The minimum pricing model they have is suitable for companies with more than one thousand users. So, if someone has 50 to 100 users, like typical small companies, it’s difficult for them because the cost involved is high. Stellar would charge you for those thousand users, but you do not need all those users. So what are they going to do? I guess Stellar does not want to target small companies directly and maybe relies on resellers and MSPs like us to sell it. So, that is something I would recommend changing. Otherwise, it’s a great tool, but because of the pricing model, small companies are unable to leverage the advantage of this beautiful tool. So, the pricing model should be suitable for small and medium businesses. The product currently has vulnerability monitoring and everything. But if they could also do something about vulnerability management and maybe patch management, that would be nice.

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

"If the user leaves our premises or network, Palo Alto Traps will still be on that endpoint and will still apply our policies."

"Monitoring is most valuable."

"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."

"Cortex XDR is stable, offering high quality and reliable performance."

"Cortex XDR is a very capable solution for protecting large networks and a lot of endpoints. It's very useful because the automation is very high, and if you combine it with the features on Palo Alto firewalls, it provides very strong protection."

"The interface is easy to use and it is more up to date than our previous solution."

"The most valuable features are incident creation, policy-based protection, IP whitelisting, and device encryption. These are beneficial for endpoint and server security."

"The solution allows us to gain remote access without the user's knowledge and take the necessary actions on the device."

More Cortex XDR by Palo Alto Networks pros

"The solution is well integrated with applications. It is easy to maintain and administer."

"The feature of Microsoft Defender XDR that I preferred the most traditionally was its focus on endpoint protection, but now identity is right up there with endpoint security. Identity is important because different compromises start at the identity level. This allows us to understand what actions are being taken, who is doing them, and whether it is actually them."

"The most valuable aspect is undoubtedly the exploration capability"

"The product is very easy to use."

"The most valuable features of Microsoft 365 Defender are the combination of all the capabilities and centralized management."

"Microsoft Defender XDR is a complete package of different Defender solutions, including Defender for Endpoint, Defender for Office 365, Defender for Cloud, and Sentinel SIEM, among others."

"It provides a single pane of glass within the 365 admin interface, streamlining our experience by consolidating information in one place and eliminating the need to navigate through multiple interfaces."

"We can use Defender to block and monitor for security purposes without needing multiple other products to do different tasks."

More Microsoft Defender XDR pros

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

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

Cons

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

"It's not an ideal choice for smaller businesses, as you need a minimum of 200 endpoints to even use the solution at all."

"Palo Alto Networks Cortex XDR does not detect malicious activity like in other anti-virus solutions like Trend Micro and Windows with Cisco."

"It is not a suitable solution if you are looking for a single product with multiple features such as DLP, encryption, rollback, etc."

"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."

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

"However, if you do not have Palo Alto in your environment, you are paying these additional services just for Cortex XDR by Palo Alto Networks, so it is not a cost-effective solution."

"The solution could improve by providing better integration with their own products and others."

More Cortex XDR by Palo Alto Networks cons

"There is no common area where we can manage all the policies for the EDR, third-party solutions, devices, servers, Windows, Mac, etc., but it's on the road map, and we ware waiting for that feature."

"The solution does not offer a unified response and standard data."

"At times, when we have an incident email and we click on the link for that incident, it opens a pop-up, but there is nothing. It has happened a couple of times."

"Sometimes, digging into the information and knowing where to go can be difficult. It would be better if much of that information were immediately visible, especially when looking at endpoints or users."

"Microsoft Defender XDR can be improved as a solution because it's still quite costly; it's part of E5, E5 security, so the cost is still quite high, especially considering SME and C customers, or SMB customers."

"Microsoft Defender XDR is not a full-fledged EDR or XDR."

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

"Defender's AI for identifying suspicious activity could be improved. Also, I do a lot of home updates. Maybe there is a way to set it up faster. For example, let's say that I want to automatically update seven computers, servers, etc. I wouldn't do it to a user, but maybe the server. I don't mind if the server restarts automatically."

More Microsoft Defender XDR cons

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

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

Pricing and Cost Advice

"In terms of the cost Cortex XDR by Palo Alto Networks is very expensive because we are a Mexican company and when you translate dollars to pesos the cost is very high. The solution is very expensive for Mexican companies. I understand that they have international prices, but I do not think it offsets the price enough for many companies in countries, such as Mexico. The amount it is reduced is not a massive percentage."

"It has reasonable pricing for the use cases it provides to the company."

"The solution has one subscription for endpoint protection and one subscription for detection and response. The two licenses combined give you the BRO version."

"It has a higher cost than other solutions, like CrowdStrike or Microsoft’s EDR tools, but it reduces the cost of our operations because it’s a new generation antivirus tool."

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

"It's the most expensive solution, but features-wise, it's quite strong. It's very good for protection, so the results are very good in the case of protection. I would rate it a two out of ten in terms of pricing."

"Cortex XDR is a costly solution."

"Traps pays for itself within the first 16 months of a three-year subscription. This is attributed to OPEX savings, as security teams spent less time trying to identify and isolate malware for analysis as a result of a reduction in malware incidents, false positives, and breach avoidance."

More Cortex XDR by Palo Alto Networks pricing and cost advice

"Purchasing Microsoft Defender XDR as part of a Microsoft 365 bundle can be cost-effective, but acquiring it as a standalone product may be more expensive."

"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."

"They have moved from a licensing model to pay-per-use... The question is: What happens if, for any reason, there's not enough budget to accept this model? That could be a great problem."

"Microsoft Defender falls within a mid-tier price range compared to other security solutions."

"The most valuable licensing option is expensive, so pricing could be improved. Licensing options for this solution also need to be consolidated, because they frequently change."

"We've managed to navigate it effectively through our enterprise agreement, and Microsoft's academic discounts have proven to be quite generous."

"Microsoft Defender XDR's licensing is complicated."

"I find the pricing to be quite competitive, especially considering its inclusion in our E5 subscription, which provides a comprehensive set of functionalities."

More Microsoft Defender XDR pricing and cost advice

"It’s a single license platform."

See which vendors are best for you

Use our free recommendation engine to learn which Extended Detection and Response (XDR) solutions are best for your needs.

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884,706 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

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

Computer Software Company

Financial Services Firm

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. ...

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...

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,...

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...

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...

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...

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...

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...

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...

Microsoft Defender for Endpoint vs Cortex XDR by Palo Alto Networks

Comparisons

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

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

IBM Security QRadar vs Microsoft Defender XDR

Compared 2% of the time

More Microsoft Defender XDR Competitors

Wazuh vs Stellar Cyber Open XDR

Compared 8% of the time

Sentinel vs Stellar Cyber Open XDR

Compared 5% 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

Elastic Security vs Stellar Cyber Open XDR

Compared 3% of the time

More Stellar Cyber Open XDR Competitors

Product Reports

Cortex XDR by Palo Alto Networks

Download Cortex XDR by Palo Alto Networks product report

Microsoft Defender XDR

Download Microsoft Defender XDR product report

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

Microsoft Defender XDR vs. Stellar Cyber Open XDR