No more typing reviews! Try our Samantha, our new voice AI agent.

Cortex XSIAM vs Stellar Cyber Open XDR comparison

Why PeerSpot?
 

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)
14th
Ranking in Identity Threat Detection and Response (ITDR)
6th
Average Rating
8.6
Reviews Sentiment
6.7
Number of Reviews
16
Ranking in other categories
AI-Powered Cybersecurity Platforms (8th)
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
42nd
Ranking in Identity Threat Detection and Response (ITDR)
23rd
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) (55th), Network Traffic Analysis (NTA) (18th), Security Orchestration Automation and Response (SOAR) (25th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (34th)
 

Mindshare comparison

As of September 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Cortex XSIAM is 1.4%, down from 2.8% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.2%, down from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Cortex XSIAM1.4%
Stellar Cyber Open XDR1.2%
Other97.4%
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.
JC
Global Director, Commercial Operations at Promasecure LLC
Automated security monitoring increases efficiency, but market visibility needs improvement
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 cater to everyone effectively. While I have not encountered significant drawbacks so far, market penetration is challenging due to the product's newness, despite its flexibility and customization features. I find their user interface to be quite good.

Quotes from Members

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

Pros

"The advanced visualization capabilities of the product are important for understanding security trends in an organization."
"Cortex XSIAM enhances our ability to apply endpoint protection policies, implement restrictions, conduct scans, and engage in sandboxing."
"The most valuable feature is the integration capability."
"One of the valued aspects of the product is its use of artificial intelligence to detect security vulnerabilities."
"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."
"Since implementing Cortex XSIAM, incident response times have been significantly reduced by approximately twenty percent."
"It does a better job of identifying anomalies that are more likely to be incidents of compromise without as many false positives or false negatives."
"I would give Cortex XSIAM a rating of ten out of ten."
"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

"The main area for improvement is the user interface intuitiveness - specifically how quickly users can grasp the portal functionality."
"There is room for improvement in expanding integrations to include more cybersecurity solutions."
"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."
"The platform isn't very developer-friendly and it should provide more flexibility and ease."
"At the beginning, we experienced some difficulties setting up the product with connectivity and infrastructure, but ultimately it functioned really effectively."
"Cortex XSIAM needs improvements in terms of data onboarding, parsers, and third-party integration supports."
"The solution’s pricing and technical support could be improved."
"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

"The solution is expensive compared to its competitors."
"Since Palo Alto is trying to get as many new customers as possible, they're offering very competitive pricing."
"The solution comes at a significant cost."
"The product cost could be considered value for money compared to other solutions in the market, though it is quite high."
"In terms of pricing, we found Cortex XSIAM to offer a very reasonable and competitive rate."
"It’s a single license platform."
report
Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
913,924 professionals have used our research since 2012.
 

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
10%
Outsourcing Company
9%
Financial Services Firm
7%
 

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: September 2026.
913,924 professionals have used our research since 2012.