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 April 2026, in the Extended Detection and Response (XDR) category, the mindshare of Cortex XDR by Palo Alto Networks is 4.9%, down from 5.5% compared to the previous year. The mindshare of Microsoft Defender XDR is 4.7%, down from 6.5% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 2.1%, up from 1.5% 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	4.7%
Cortex XDR by Palo Alto Networks	4.9%
Stellar Cyber Open XDR	2.1%
Other	88.3%

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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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

"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 most valuable features are the fact that it was running in the background and it would intercept any weird stuff, and the fact that it would send things directly to the cloud for sandboxing. It's quite practical."

"Its ability to react to cyber data attacks is awesome. That is pretty much the use of it. What blows your mind is the ability to access your assets remotely and see what is actually going on with them. You can not only see them in a console. You can also react very rapidly to your assets that are compromised."

"It blocks malicious files, prevents attacks, and doesn't require many updates because it is a very light application."

"It can automatically correlate events and logs, which is very helpful for an IT administrator. It can correlate different kinds of malware activities over a network, agent, or host system. You do not need to do it manually. It is a good feature. It is also a user-friendly solution. We have deployed it on the cloud because our space does not provide any flexibility for on-premises deployment, but Palo Alto has added some flexibility to install it on-premises. It must be like the same Cortex XDR agent for all the VPN services, web filtering services, and everything else."

"The stability of this product is very good."

"From a single pane of glass, you can easily manage all of your endpoints."

More Cortex XDR by Palo Alto Networks pros

"What I appreciate most about Microsoft Defender XDR is the ability to drill down to the process level, the visibility of processes, and the file-level details of what processes are accessing, including the IP addresses for outbound connections."

"The proactive remediation aspects and the surfacing of suspicious activity for investigation and escalation are the key aspects we appreciate most."

"The ability to isolate and address viruses is the most valuable feature of Microsoft Defender XDR."

"The unified view of the threat landscape on a central dashboard is the most valuable feature."

"The most valuable feature of all is the full integration with the rest of the software in the operating system and Office 365, as well as Microsoft SCCM."

"The incident threat response and its ability to facilitate effective remediation against threats are the standout features."

"The stability has been great."

"Defender is easy to use. It has a nice console, and everything is all in one place."

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

"Cortex does not offer an on-premises solution. However, some customers would prefer not to be on the cloud. It would be ideal if it could offer something on-prem as well."

"It is not easy to sell Cortex XDR, not because it isn't a good tool. Its marketing needs to be improved."

"The solution should force customers to integrate with network traffic to see the full benefits of XDR."

"There are some default policies which sometimes affect our applications and cause them to run around."

"If they had pulse rate detection, it would be better."

"There is a severe gap in functionality between Windows, Linux, and Mac versions. For example all folder restriction settings are Windows only. Traps 5.0+ does not have SAML / LDAP integration."

"We would also like to have advanced tech protection and email scanning."

"Cortex XDR is trickier to configure than other Palo Alto products. This is one area where we are not so satisfied."

More Cortex XDR by Palo Alto Networks cons

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

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

"The automation response being slow is the main concern; when an incident occurs or if I run a remediation, it takes significant time to complete the remediation."

"What could be improved in Microsoft 365 Defender is its licensing; it needs to be more consolidated, because there are so many plans for Microsoft 365 Defender, and every other year, there will be new licensing options that become more and more different from each other."

"There are other SIEM solutions that are easier to use, mainly based on the creation of rules, use cases, and groups."

"Offboarding latency should be reduced. Even after a device has been successfully offboarded using a particular offboarding script, it still shows up as onboarded."

"Troubleshooting in Microsoft 365 Defender can be inefficient."

"There are a few technical issues with Defender XDR that can be improved. Sometimes, the endpoint devices are not reporting properly to the Defender 365 portal. When you're getting all the information from the Microsoft portal, the devices are sometimes not in sync. We have hundreds of endpoint devices, some needing to be onboarded again."

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

"It has a yearly renewal."

"I don't have any issues with the pricing. We are satisfied with the price."

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

"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."

"The price of the solution could be reduced. I have customers that have voiced that the solution is good for the value but if I want to sell more of the solution the price reduction would help."

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

"Our customers have expressed that the price is high."

"It is "expensive" and flexible."

More Cortex XDR by Palo Alto Networks pricing and cost advice

"Microsoft Defender XDR is priced high."

"The pricing of Microsoft 365 Defender is definitely on the costly side, but with the features and services that Microsoft provides, such as the seamless integration of all the Defender tools, while the price is on the higher side, there is no alternative."

"Microsoft Defender XDR is already included in our Office 365 licensing. It is better because we're saving money by using it."

"Defender XDR is included in the E5 license, but it's a bit too expensive."

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

"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."

"The price could be better. Normally, the costs depend on the country you're located in for the license. When we were in the initial stage, we went with the E5 license they call premium standard. It cost us around $5.20 per month for four users."

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

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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Top Industries

By visitors reading reviews

Construction Company

13%

Financial Services Firm

12%

Comms Service Provider

Manufacturing Company

Computer Software Company

11%

Financial Services Firm

Comms Service Provider

Manufacturing Company

13%

Comms Service Provider

10%

Computer Software Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	45
Midsize Enterprise	20
Large Enterprise	48

By reviewers
Company Size	Count
Small Business	46
Midsize Enterprise	26
Large Enterprise	40

No data available

Questions from the Community

Cortex XDR by Palo Alto vs. Sentinel One

Cortex XDR by Palo Alto vs. SentinelOne SentinelOne offers very detailed specifics with regard to risks or attacks. ...

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

What needs improvement with Microsoft 365 Defender?

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

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

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Cortex XSIAM vs Cortex XDR by Palo Alto Networks

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TrendAI Vision One vs Cortex XDR by Palo Alto Networks

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CrowdStrike Falcon vs Microsoft Defender XDR

Compared 10% of the time

Wazuh vs Microsoft Defender XDR

Compared 6% of the time

SentinelOne Singularity Endpoint vs Microsoft Defender XDR

Compared 5% of the time

Microsoft Defender for Cloud vs Microsoft Defender XDR

Compared 4% of the time

Microsoft Sentinel vs Microsoft Defender XDR

Compared 2% of the time

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Wazuh vs Stellar Cyber Open XDR

Compared 7% of the time

Microsoft Sentinel vs Stellar Cyber Open XDR

Compared 4% of the time

Sentinel vs Stellar Cyber Open XDR

Compared 4% of the time

SentinelOne Singularity Endpoint vs Stellar Cyber Open XDR

Compared 4% of the time

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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)

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