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Cortex XSIAM vs Stellar Cyber Open XDR comparison

 

Comparison Buyer's Guide

Executive Summary

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 XSIAM
Ranking in Security Information and Event Management (SIEM)
16th
Ranking in Identity Threat Detection and Response (ITDR)
7th
Average Rating
8.6
Reviews Sentiment
6.7
Number of Reviews
16
Ranking in other categories
AI-Powered Cybersecurity Platforms (9th)
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
43rd
Ranking in Identity Threat Detection and Response (ITDR)
22nd
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
User Entity Behavior Analytics (UEBA) (29th), Endpoint Detection and Response (EDR) (58th), Network Traffic Analysis (NTA) (17th), Security Orchestration Automation and Response (SOAR) (24th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (40th)
 

Mindshare comparison

As of August 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Cortex XSIAM is 1.6%, down from 2.9% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.3%, down from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Cortex XSIAM1.6%
Stellar Cyber Open XDR1.3%
Other97.1%
Security Information and Event Management (SIEM)
 

Featured Reviews

reviewer2541030 - PeerSpot reviewer
Cybersecurity Architect at a computer software company with 10,001+ employees
Unified security monitoring has simplified incident response and improved automated threat handling
The firewall side can make some improvements. I know the firewall on Cortex XSIAM is based on Windows. From what I have experienced so far, I have seen that the policies you can create are actually very in-depth. I mean, you can do most of the things and a lot of integration that you actually want. So if I want to choose to send things to WildFire, for example, I can choose to send it, I can choose to not send it. This basically offers flexibility to implement Cortex XSIAM in more standardized places where you maybe have a certification. I would say that the thing that maybe needs a bit more improvement is the fact that the one with the firewall because I have seen some things there that are kind of hard to manage. You do not really have a very easy way to manage those, unless you actually know where you have put them. So it is very inflexible. In the rest, you have a lot of playbooks that you can do and you can do lots of automation, which is actually easy to manage from what I have seen from my colleagues.
Hrishiraj Bhattacharjee - PeerSpot reviewer
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.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The most valuable features of Cortex XSIAM are the machine learning used to identify threats, the complexity of the environment of products, and efficiency."
"I would give Cortex XSIAM a rating of ten out of ten."
"Since implementing Cortex XSIAM, incident response times have been significantly reduced by approximately twenty percent."
"Its ability to deliver a substantial amount of security intelligence greatly enhances and optimizes our security operations program."
"The most valuable aspect is that Cortex XSIAM doesn't generate excessive alerts, refines all search results effectively, and filters out incidents where SOC intervention isn't necessary, allowing engineers to focus only on what matters."
"The advanced visualization capabilities of the product are important for understanding security trends in an organization."
"It operates on a single, extensive database which enables it to excel in detecting threats and anomalies across the network and endpoints, delivering a highly effective and comprehensive security solution."
"For me, to have Cortex XSIAM available is to basically have integration of all log sources, all alerting, and so on and so forth from firewalls and different tools, to get everything in one place, and afterwards to be able to build on the information that is coming."
"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

"Further integration capabilities with various other software products that can seamlessly tie into Cortex XSIAM would be advantageous."
"Cortex XSIAM needs improvements in terms of data onboarding, parsers, and third-party integration supports."
"It could provide more integration with a large variety of products."
"There is room for improvement in expanding integrations to include more cybersecurity solutions."
"The first impression is that XSIAM would be more expensive than others we tried."
"Cortex XSIAM is pretty expensive, and the licensing process is not very comfortable compared to CrowdStrike."
"Cortex XSIAM is on the expensive side and requires substantial improvement in pricing."
"I am not sure if any improvements are needed right now."
"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

"Since Palo Alto is trying to get as many new customers as possible, they're offering very competitive pricing."
"The product cost could be considered value for money compared to other solutions in the market, though it is quite high."
"The solution comes at a significant cost."
"The solution is expensive compared to its competitors."
"In terms of pricing, we found Cortex XSIAM to offer a very reasonable and competitive rate."
"It’s a single license platform."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Manufacturing Company
10%
Computer Software Company
9%
Government
6%
Manufacturing Company
14%
Comms Service Provider
9%
Computer Software Company
8%
Outsourcing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise5
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Cortex XSIAM?
I did not participate in pricing discussions for Cortex XSIAM solutions, so I cannot provide a review regarding prices for this solution.
What needs improvement with Cortex XSIAM?
The firewall side can make some improvements. I know the firewall on Cortex XSIAM is based on Windows. From what I have experienced so far, I have seen that the policies you can create are actually...
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 functionalities at a significantly lower cost than rival products, enabling me to...
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 improvement as of now. Their support is good, and the team is small, enabling them to ca...
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, especially for customers with large and medium networks. It eliminates the need for a d...
 

Overview

 

Sample Customers

Information Not Available
Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City
Find out what your peers are saying about Cortex XSIAM vs. Stellar Cyber Open XDR and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.