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.

Comparison Buyer's Guide

Download the report

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

Download the complete report

Helped 908,858 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 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.

Read full review

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.

Read full review

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

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

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

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

"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 stability of the solution is very good. We have about 100 users on it right now, and we use it twice a week."

"The scalability of Cortex XDR by Palo Alto Networks is very good."

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

"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 integration with all variations of Microsoft Defender, for Endpoint, 365, and Cloud is valuable."

"If I didn't have the integrated pieces of Microsoft Defender, to do the same amount and be on top of things, I would probably need two FTEs."

"The patch updates and version updates are very good. Those happen on an automated basis whenever I'm connecting to the organization network, either through LAN or through the VPN."

"I would highly recommend Microsoft Defender Antivirus for an individual looking to protect their endpoints."

"As it is, the solution offers great malware features, is ranked pretty highly in Gartner and is easy to implement and use."

"The most valuable feature is ransomware protection, which can detect malicious activity from IPs or a malicious payload in DLLs, or other things that can corrupt the system."

"The features of Microsoft Defender for Endpoint that I prefer most are the detections. It just works."

"Defender for Endpoint is a good competitor for those looking for an EDR solution, and for those looking for a complete security suite, it's one of the better choices."

More Microsoft Defender for Endpoint 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

"The only issues that we have are, one the cost, two the dashboard is not very intuitive, even though you can drill down within the dashboard, we usually have to gather information from other sources to determine locations and if its a false positive."

"Basically, they don't provide customer support tools just to investigate the logs."

"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."

"Additionally, I think the price is very high, and if it can be adjusted, I believe it will be a very good solution."

"Whenever the tool releases a new version when deploying the product across the organization, I feel like there are some disturbances in the CPU usage after upgrading the tool to the latest version."

"In terms of areas of improvement, we have not completed our review of the product. We're also looking at other products. So, it's a little bit hard to tell what could be different because we have not completed the review of this product, but based on our experience so far, its implementation is quite complex."

"There are some false positives. What our guys would have liked is that it would have been easier to manipulate as soon as they found a false positive that they knew was a false positive. How to do so was not obvious. Some people complained about it. The interface, the ESM, is not user-friendly."

"On the pricing aspect, Cortex XDR by Palo Alto Networks needs to have a more reasonable rate, particularly for customers in Sri Lanka and Asian countries."

More Cortex XDR by Palo Alto Networks cons

"It can get a bit laggy sometimes. Other than that, we don't have any issues. They constantly tweak it and fix it up based on users' feedback. It has improved a lot over the past four years. Defender for Endpoint never really used to be a good endpoint security solution, but over the past couple of years, Microsoft has invested heavily in it. So, it has come a long way in all aspects of endpoint security. If they want to make it better, they should just continue investing in the current path of what they've been doing over the past couple of years."

"It should support non-Windows products better. Microsoft is now one of the leading vendors in the security area. So, they should be product-independent."

"Cortex... has good investigation capabilities, out-of-the-box, in case there is an event that you'd like to investigate. It's quite convenient. Microsoft has those capabilities as well, but you need a bit more training on the product to get the basic information that you can get out-of-the-box with Cortex."

"The UI for Microsoft Defender for Endpoint needs to be better."

"Localization is always a challenge, especially with new products you typically want. Solutions are designed to be deployed where the most licenses are being consumed, such as in the United States. They focus on US products, devices, and networks. Specialized deployments for other countries would allow for a smoother experience in transition."

"Features like device inventory continue to lack essential workstation drill-downs showing the entire device information with the least effort."

"Microsoft Defender for Endpoint should have more transparency. In the latest edition of Windows, Windows 11, it is a compulsory requirement to connect to a Microsoft account, which in turn has implications for Defender. This should be removed."

"It is using a large space in your memory all the time. While an antivirus will use some of your memory, if they could reduce the load of the antivirus to some extent that would be good."

More Microsoft Defender for Endpoint 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

"It is cost-effective compared to similar solutions. It fits for the small businesses through to the big businesses."

"The cost depends on your chosen license type, like Pro or other licenses."

"Very costly product."

"Cortex XDR’s pricing is very reasonable."

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

"Cortex XDR's pricing is ok."

"It is "expensive" and flexible."

"The tool's price is moderate."

More Cortex XDR by Palo Alto Networks pricing and cost advice

"The licensing fee is a function of your Office 365 license. The feature set you get is a function of the license as well. There is probably an E2 version, an E3 version, and an E5 version. There are several versions, and not all features are the same. So, you might want to check what features you're expecting because you might get shocked. If you only have an E3 license, the capability isn't the same."

"Licenses depend upon what you are looking for and what kind of security do you want to implement. There are costs in addition to the standard licensing fees. When we used to buy Symantec, we used to spend on 100 licenses. We used to spend approximately $2,700 for those many licenses, and they came in packs. To add one more license, I had to buy a pack with a minimum of 10 licenses. I had to spend on nine extra licenses because I can't get a single license, whereas when we go for Microsoft, we can get as many licenses as we want. If I have 100 users today, and tomorrow, I have 90 users, I can release my 10 licenses next month. With any other software vendor, you buy licenses for one year, and you have to stick with that. If today you have 100 licenses, and tomorrow, you have 50, you have already paid for one year's license. You can't go back and tell them that I don't require these 50 licenses because I have lost my 50 users, but with Microsoft Defender, licensing is on a monthly basis. It gives you both options. You can go yearly and save on it, or you can go monthly. You will, again, save on it. It is very fair everywhere."

"The nice thing about Defender and Sentinel is that the cost is based on the data logs that you ingest from the Defender endpoints and data connectors. I don't have to buy a 25- or 50- or 1,000-user or enterprise license. I can buy one license at a time."

"When compared with other vendors, the pricing is very high."

"The cost is high for E5 licenses, but if we go with the E3 license, most of the features are not covered."

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

"It is free. It is included in Windows 10."

"We have seen ROI. Most of the other competing alternatives will cost up to around $30 per user device. We average 400 devices. Therefore, the amount that we save each year is 400 times $30."

More Microsoft Defender for Endpoint 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 Endpoint Detection and Response (EDR) solutions are best for your needs.

See recommendations

908,858 professionals have used our research since 2012.

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...

See all answers

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,...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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.

DOWNLOAD NOW

908,858 professionals have used our research since 2012.

See our Microsoft Defender for Endpoint vs. Stellar Cyber Open XDR report.

See our list of best Endpoint Detection and Response (EDR) vendors.

We monitor all Endpoint Detection and Response (EDR) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.