Microsoft Defender for Endpoint vs Stellar Cyber Open XDR comparison

Microsoft and Stellar Cyber are both solutions in the Endpoint Detection and Response (EDR) category. Microsoft is ranked #3 with an average rating of 8.4, while Stellar Cyber is ranked #58. Microsoft holds a 5.6% mindshare in EDR, compared to Stellar Cyber’s 1.0% mindshare. Additionally, 95% of Microsoft users are willing to recommend the solution.

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Executive Summary

We performed a comparison between Microsoft Defender for Endpoint and Stellar Cyber Open XDR based on real PeerSpot user reviews.

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

To learn more, read our detailed Microsoft Defender for Endpoint vs. Stellar Cyber Open XDR Report (Updated: June 2026).

Buyer's Guide

Microsoft Defender for Endpoint vs. Stellar Cyber Open XDR

June 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 August 2026, in the Endpoint Detection and Response (EDR) category, the mindshare of Cortex XDR by Palo Alto Networks is 3.7%, down from 3.8% compared to the previous year. The mindshare of Microsoft Defender for Endpoint is 5.6%, down from 10.1% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.0%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Endpoint Detection and Response (EDR) Mindshare Distribution
Product	Mindshare (%)
Microsoft Defender for Endpoint	5.6%
Cortex XDR by Palo Alto Networks	3.7%
Stellar Cyber Open XDR	1.0%
Other	89.7%

Endpoint Detection and Response (EDR)

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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Robert Arbuckle

Security Analyst III at a healthcare company with 10,001+ employees

Automatically isolates threats and integrates with logging to reduce response time

Overall, I would evaluate the Microsoft support level that I receive at probably about a seven, but that depends on the day. It has been spotty. We have had issues where the urgency level of the Microsoft support is not as high as ours, especially during a data breach or potential data breach situation. We have had issues with some of the offshore support being lackluster. One specific thing that comes to mind is we were on a support call with our CISO on the call, and the Microsoft agent, who did not actually work for Microsoft, is one of the vendors that Microsoft uses for support, said, "Just to set expectations, my lunch break is in an hour and I am going to go away then." For us, it was already ten o'clock at night and we had been working on this for a couple of hours, trying to get a security engineer on with us. For him to tell us that he was going to go away and have lunch, it was, "Okay, but go find somebody else if you need to." It was just the lackluster approach, and it seemed like he did not really care. We seem to get a lot of this when we get non-Microsoft support. I can identify areas for improvement with Microsoft Defender for Endpoint, as it is kind of a convoluted mess to try to take care of false positives. Especially when they have been identified as false positives but they keep going off over and over again. It is great for my pocketbook because it generates a lot of on-call action, but I would really prefer more sleep at two o'clock in the morning than dealing with false positives. I would say that the unified portal for managing Microsoft Defender for Endpoint is suitable for both teams as they are all in there. It would be great if they would stop moving things around and renaming things, which makes sense. The new XDR portal is pretty nice. Being able to have it central again inside of the regular Security Center without having to open up two windows is helpful. Overall, I think it is pretty good. There is always going to be something that could be improved, such as alerting and the ability to modify alerts would be a little bit helpful to have. Being able to add more data into the alerts and turn off alerts that are not as useful would be beneficial. It is hard to say what the quantitative impact the security exposure management feature has had on our company's security, because a lot of it is kind of subjective. I think we are sitting at around a fifty percent score still, and a lot of it is just kind of unusual circumstances that we cannot really implement without breaking the organization.

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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

"We use it for malicious connections from malicious websites, to identify payloads that might be inside the traffic, to identify malicious processes or bugs that are running on the network, and any activities that tend to lead to data infiltration."

"Cortex XDR's most valuable feature is its intelligence-based dashboards."

"The live terminal is probably the best thing ever. It gives you the access to get straight onto any machine."

"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."

"Its ability to react to cyber data attacks is awesome."

"I don't have to do much monitoring with it; I don't have to have anybody manually looking at this, it gives us reports, and it lets us know if something needs to be addressed, and we can easily address it."

"The most valuable features of this product are the management capabilities, which allow an IT organization to get quite a good picture of attempted cyber attacks, and its out-of-the-box investigation capabilities."

"There has been a significant reduction of approximately 70% to 80% in our internal MTTR and MTTD metrics, now around five to eight minutes whereas previously it was hours, which has helped tremendously."

More Cortex XDR by Palo Alto Networks pros

"The detection features are valuable, as is the fact that it is easier to port these logs into Sentinel. That is also useful for us. It is more comprehensive."

"The automatic attack disruption feature in Microsoft Defender for Endpoint works great."

"This solution definitely increases our security posture. When you are reviewing your existing fleet or endpoints and based on the configuration that you put out of your Defender for Endpoint, you then receive a security score from Microsoft. Depending on what rules you have configured, what policies you have deployed, and what attack surface reduction rules that you have set up and deployed, it is almost gamifying information security in the sense that you are always trying to achieve a higher score. The more hardening you perform on your endpoints, the better score you receive. This generally tends to give you a better peace of mind, but also makes you secure at the same time."

"What the Defender platform does is that it reduces the size of the haystack, and it'll say that the needle is over here."

"From a management point of view, this product gives better control over endpoint devices because some processes can be stopped remotely."

"Defender is stable enough and is competitive with the other products in the market."

"Defender is stable. The performance is good."

"The security is very useful."

More Microsoft Defender for Endpoint 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

"Technology evolves every day, so it would be nice if it gets more secure. It can also have more integration with other platforms."

"The solution needs better reports. I think they should let the customer go in and customize the reports."

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

"There are some default policies which sometimes affect our applications and cause them to run around. In the hotel industry, we use a different type of data versus Oracle and SQL. By default, there are some policies which stop us from running properly. Because of this, the support level is also not that strong. We have to wait to get a results."

"There's room for improvement with Mac device installations, which can be challenging."

"I have run into some detection issues with Cortex XDR. It needs to be better at detection of internal attacks."

"Data privacy is a matter of concern. You have to be careful with data privacy, it can be sensitive and Cortex can have most of your access."

"It takes time to scan the servers and devices."

More Cortex XDR by Palo Alto Networks cons

"This solution is not secure, which is why I have moved to Linux."

"Microsoft Defender for Endpoint should include better automation that will make it faster to detect the latest threats happening across the world."

"Its detection is not as quick. There should also be more frequent updates."

"Sometimes it's complicated. It's not intuitive in terms of installation and deployment."

"ATP is a work in progress. To me, it is not a complete product."

"There is room to improve the security of the solution."

"We had some issues where phishing and malware were not detected and were allowed to pass unless I mentioned it or we forced the phishing or malware to be blocked, I can't rely on that alone."

"At times, the other antivirus products are now doing AI, in terms of understanding the behavior of the system and determining when there's an anomaly. This is something that Defender can improve on."

More Microsoft Defender for Endpoint 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

"It is present, but when compared to other competitive products, I would say it is not less expensive; however, when all of the other added values are considered, the price is reasonable."

"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."

"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."

"The pricing is a little high. It is per user per year."

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

"Cortex XDR's pricing is ok."

"We didn't have to pay any additional fee for the cloud instance. It just came with the renewal, which was nice."

"When we first bought it, it was a bit expensive, but it was worth it. The licensing was straightforward."

More Cortex XDR by Palo Alto Networks pricing and cost advice

"When customers haven't deployed the solution and don't have licenses, it can be expensive to start from scratch."

"Currently, for us, Windows Defender is free with the purchase of Windows Server. Pricing is an important point for us when we are looking at the competitors of this solution. If we choose to go with another vendor, we will have to pay some license fees."

"Licensing options vary. Some customers buy it as an enterprise agreement and pay yearly. Others buy it as a CSP, so they pay per month. It completely depends on the customer's needs."

"The solution comes as a part of Windows 10 and it is covered under its license."

"For most people, the price of the license is not something that they have to worry about."

"If we are acquiring everything in a single place, the front end becomes cost-effective."

"Buying individual point products would've cost us a lot more money than one integrated solution that also capitalizes on Teams Voice and things of that nature. Given our size, buying individual products would have easily cost us a million dollars."

"We have a bundle where the price includes all Microsoft products."

More Microsoft Defender for Endpoint pricing and cost advice

"It’s a single license platform."

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Top Industries

By visitors reading reviews

Construction Company

13%

Financial Services Firm

10%

Comms Service Provider

10%

Manufacturing Company

10%

Manufacturing Company

10%

Financial Services Firm

Computer Software Company

Comms Service Provider

Manufacturing Company

13%

Comms Service Provider

Computer Software Company

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	46
Midsize Enterprise	21
Large Enterprise	54

By reviewers
Company Size	Count
Small Business	82
Midsize Enterprise	45
Large Enterprise	96

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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Which offers better endpoint security - Symantec or Microsoft Defender?

We use Symantec because we do not use MS Enterprise products, but in my opinion, Microsoft Defender is a superior sol...

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How does Microsoft Defender for Endpoint compare with Crowdstrike Falcon?

The CrowdStrike solution delivers a lot of information about incidents. It has a very light sensor that will never pu...

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

We have been discussing pricing, setup cost, and licensing, and we are currently on an E3. We are discussing going to...

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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

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

Trellix Endpoint Security Platform vs Cortex XDR by Palo Alto Networks

Compared 3% of the time

Symantec Endpoint Security vs Cortex XDR by Palo Alto Networks

Compared 3% of the time

More Cortex XDR by Palo Alto Networks Competitors

OpenText Core Endpoint Protection vs Microsoft Defender for Endpoint

Compared 6% of the time

CrowdStrike Falcon vs Microsoft Defender for Endpoint

Compared 3% of the time

HP Wolf Security vs Microsoft Defender for Endpoint

Compared 3% of the time

Symantec Endpoint Security vs Microsoft Defender for Endpoint

Compared 3% of the time

SentinelOne Singularity Endpoint vs Microsoft Defender for Endpoint

Compared 2% of the time

More Microsoft Defender for Endpoint Competitors

Wazuh vs Stellar Cyber Open XDR

Compared 7% of the time

SentinelOne Singularity Endpoint vs Stellar Cyber Open XDR

Compared 6% of the time

Microsoft Sentinel vs Stellar Cyber Open XDR

Compared 5% of the time

Lumu vs Stellar Cyber Open XDR

Compared 4% of the time

Darktrace vs Stellar Cyber Open XDR

Compared 2% of the time

More Stellar Cyber Open XDR Competitors

Product Reports

Buyer's Guide

Cortex XDR by Palo Alto Networks

August 2026

Download Cortex XDR by Palo Alto Networks product report

Buyer's Guide

Microsoft Defender for Endpoint

July 2026

Download Microsoft Defender for Endpoint product report

Buyer's Guide

Extended Detection and Response (XDR)

July 2026

Download Stellar Cyber Open XDR product report

Also Known As

Cyvera, Cortex XDR, Palo Alto Networks Traps

Microsoft Defender ATP, Microsoft Defender Advanced Threat Protection, MS Defender for Endpoint, Microsoft Defender Antivirus

No data available

Interactive Demo

Demo not available

Palo Alto Networks

Microsoft

Demo not available

Stellar Cyber

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 for Endpoint provides comprehensive threat protection that integrates well with current systems, offering proactive threat detection and automatic updates while reducing manual efforts.

The platform is designed for seamless integration with Microsoft products, facilitating efficient management and use. It offers proactive ransomware protection and valuable threat intelligence, crucial for timely response and increased visibility across devices. Users highlight its ability to secure endpoints from viruses and malware, integrating with Windows and Office 365 to enhance real-time detection capabilities in diverse environments, including hybrid and on-premises setups. However, enhancements are needed in Linux integration, detection accuracy, and policy implementations.

What are the key features of Microsoft Defender for Endpoint?

Seamless Integration: Works smoothly with existing systems and Microsoft products for easy management.
Proactive Threat Detection: Advanced monitoring to identify and mitigate threats swiftly.
Ransomware Protection: Built-in features to protect against ransomware attacks automatically.
Centralized Management: Unified platform for better device visibility and collaboration.
Threat Intelligence: Provides critical data for rapid threat response.

What benefits should be evaluated in Microsoft Defender for Endpoint?

Cost-Effectiveness: Part of Windows bundles, offering comprehensive security at competitive pricing.
Time Efficiency: Reduces manual oversight with automatic updates and management ease.
Real-Time Detection: Enhanced security through seamless Office 365 and Windows integration.
Device Coverage: Supports hybrid and on-premises environments for varied digital infrastructures.

Microsoft Defender for Endpoint is implemented across industries for securing endpoints, relying on its deep integration with Windows and Office 365 to protect against malware and viruses. Organizations benefit from its real-time detection and comprehensive management capabilities, particularly in hybrid environments where diverse digital infrastructures need safeguarding.

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

Petrofrac, Metro CSG, Christus Health

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

Buyer's Guide

Microsoft Defender for Endpoint vs. Stellar Cyber Open XDR

June 2026

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

Find out what your peers are saying about Microsoft Defender for Endpoint vs. Stellar Cyber Open XDR and other solutions. Updated: June 2026.

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