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Cortex XSIAM vs Fortinet FortiSIEM 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:
 

ROI

Sentiment score
4.6
Cortex XSIAM automates over 50% of workflows, saving up to $500k, benefiting understaffed teams with quick ROI.
Sentiment score
1.0
Fortinet FortiSIEM delivers security improvements and customer satisfaction, leading to positive financial outcomes despite no explicit ROI measurement.
 

Customer Service

Sentiment score
5.8
Cortex XSIAM support receives mixed feedback, with premium plans praised for expert guidance but needing improved responsiveness overall.
Sentiment score
7.4
Fortinet FortiSIEM's customer service is seen as professional but has mixed reviews on response times and support accessibility.
With premium support, core Palo Alto technical experts handle issues directly.
It is ineffective in terms of responding to basic queries and addressing future requirements.
The Palo Alto support team is fully responsive and helpful.
Local tech support is available, however, for more critical or technical issues, we depend on the OEM directly, especially when it comes to on-prem solutions.
There is a knowledgeable, though small, team of support engineers around the world.
They take some time to respond because they need logs and investigations, which delays the response time.
 

Scalability Issues

Sentiment score
6.5
Cortex XSIAM is praised for its scalability in enterprise and cloud, though some seek better on-premises capabilities.
Sentiment score
7.2
Fortinet FortiSIEM scales well, accommodating different business sizes but faces challenges with licensing, architecture, and configuration complexities.
Without proper integration, scaling up with more servers is meaningless.
Cortex XSIAM is highly scalable.
At any point in time, when network devices increase or there is a change in the infrastructure, we can add more workers and collectors to expand our infrastructure setup.
Fortinet FortiSIEM is highly scalable.
Fortinet FortiSIEM is easy to scale.
 

Stability Issues

Sentiment score
7.6
Cortex XSIAM is praised for its robust cloud-based stability, offering reliable performance with minimal and swiftly handled issues.
Sentiment score
5.6
Fortinet FortiSIEM is reliable and stable, handling updates well, with users rating its performance highly despite occasional bugs.
The product was easy to install and set up and worked right.
Overall, Cortex XSIAM is stable.
It works really nice and performs really efficiently after configuration.
It stabilizes itself in an appropriate time, so its uptime is good.
These issues may cause unusual errors and user interface issues.
Some stability issues occur, but Fortinet's technical support team provides assistance.
 

Room For Improvement

Cortex XSIAM needs enhancements in performance, pricing, support, integration, UI intuitiveness, AI analytics, and identity management expansion.
Fortinet FortiSIEM needs improvements in integration, user interface, support, cost, and features like AI and automated responses.
Obtaining validation for integrations from Palo Alto takes around eight months, which is quite long.
Cortex XSIAM needs improvements in terms of data onboarding, parsers, and third-party integration supports.
Cortex XSIAM is on the expensive side and requires substantial improvement in pricing.
Recently, they revised it to a subscription-based, all-inclusive license.
The built-in APIs in Fortinet FortiSIEM are somewhat lacking and could be improved for better integration with external ITSM products.
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management.
 

Setup Cost

Cortex XSIAM pricing is high but competitive, with costs varying based on add-ons, licensing, and regional differences.
Fortinet FortiSIEM provides flexible pricing that can be cost-effective, but costs may increase with additional modules and scalability.
The first impression is that XSIAM would be more expensive than others we tried.
The product is very expensive.
Cortex XSIAM is pretty expensive, and the licensing process is not very comfortable.
Setting it up for oneself as an enterprise-licensed product can be quite expensive.
Windows agent licenses cost around 3,000 Rupees per device per year.
The revised model is subscription-based and more flexible.
 

Valuable Features

Cortex XSIAM offers advanced security automation, machine learning detection, and seamless integration, enhancing threat management and forensic investigation.
Fortinet FortiSIEM provides automation, analytics, and integration with a user-friendly interface for efficient threat detection and network monitoring.
The advanced visualization capabilities of the product are important for understanding security trends in an organization.
One of the valued aspects of the product is its use of artificial intelligence to detect security vulnerabilities.
The flexibility for creating manual workflows stands out.
It provides extensive logging and record-keeping for internal networks, cloud applications, and services as well as perimeter physical network security.
I find the real-time monitoring and correlation capabilities effective for security alerts.
 

Categories and Ranking

Cortex XSIAM
Ranking in Security Information and Event Management (SIEM)
13th
Average Rating
8.6
Reviews Sentiment
6.7
Number of Reviews
15
Ranking in other categories
Identity Threat Detection and Response (ITDR) (5th), AI-Powered Cybersecurity Platforms (7th)
Fortinet FortiSIEM
Ranking in Security Information and Event Management (SIEM)
7th
Average Rating
7.6
Reviews Sentiment
5.8
Number of Reviews
75
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Cortex XSIAM is 3.0%, up from 1.7% compared to the previous year. The mindshare of Fortinet FortiSIEM is 3.3%, up from 2.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
Fortinet FortiSIEM3.3%
Cortex XSIAM3.0%
Other93.7%
Security Information and Event Management (SIEM)
 

Featured Reviews

AKASH MAJUMDER - PeerSpot reviewer
Incident response times have significantly reduced with efficient device integration and log parsing capabilities
Cortex XSIAM needs improvements in terms of data onboarding, parsers, and third-party integration supports. Additionally, a future update request is to enable tagging of endpoints in groups, similar to a feature available in Cortex XDR. The AI analytics need fine-tuning because some use cases are not working from my side.
Oliver Jackson - PeerSpot reviewer
Systems monitoring enhanced by firewall and intrusion detection features
My primary use case for Fortinet FortiSIEM is systems monitoring and alerting. I use it for standard functions like log monitoring, incident detection, and notification.  My customers are mostly medium-sized enterprises ranging from engineering companies, mining companies, independent schools, and…
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Manufacturing Company
10%
Financial Services Firm
10%
Government
7%
Computer Software Company
13%
Financial Services Firm
9%
Comms Service Provider
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise4
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise21
Large Enterprise23
 

Questions from the Community

What do you like most about Cortex XSIAM?
It is an effective solution in terms of performance and functionalities.
What is your experience regarding pricing and costs for Cortex XSIAM?
The cost of Cortex XSIAM in the India market differs from other regions. When considering competition, from a sales perspective, the pricing is acceptable.
What needs improvement with Cortex XSIAM?
Cortex XSIAM is on the expensive side and requires substantial improvement in pricing. There are other features that could be improved, including integration with vendors such as CyberArk. I would ...
What do you like most about Fortinet FortiSIEM?
Fortinet FortiSIEM needs to provide better API integrations to users.
What is your experience regarding pricing and costs for Fortinet FortiSIEM?
I am not familiar with the price and cost of Fortinet FortiSIEM. I cannot tell you if it is high, expensive, or low. However, I can say that it is cost-effective as it provides everything needed.
What needs improvement with Fortinet FortiSIEM?
Regarding Fortinet FortiSIEM, I cannot identify any specific areas for improvement because I can find everything I need. For the time being, I cannot find a real point for improvement. Everything i...
 

Also Known As

No data available
FortiSIEM, AccelOps
 

Overview

 

Sample Customers

Information Not Available
FortiSIEM has hundreds of customers worldwide in markets including managed services, technology, financial services, healthcare, and government. Customers include Aruba Networks, Compushare, Port of San Diego, Cleveland Indians, Infoblox, Healthways, and Referentia.
Find out what your peers are saying about Cortex XSIAM vs. Fortinet FortiSIEM and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.