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Fortinet FortiSIEM 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

Fortinet FortiSIEM
Ranking in Security Information and Event Management (SIEM)
8th
Average Rating
7.6
Reviews Sentiment
6.7
Number of Reviews
73
Ranking in other categories
No ranking in other categories
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
51st
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
1
Ranking in other categories
Endpoint Detection and Response (EDR) (61st), Security Orchestration Automation and Response (SOAR) (25th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (35th)
 

Mindshare comparison

As of March 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 3.1%, up from 3.1% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.3%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM)
 

Featured Reviews

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…
Hrishiraj Bhattacharjee - PeerSpot reviewer
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

"To add workers and even collectors is pretty easy."
"The tool's most valuable feature stems from the fact that I can see a complete analysis, like all the incidents that have happened, and it detects everything in real-time."
"The advanced agents used to collect logs have been most valuable. We have also made use of the advanced intelligence this solution offers."
"The most valuable features of the solution is its integration with other technologies, especially its ability to collect logs from Cisco and Aruba devices along with Fortinet products."
"The most valuable feature is the ability to view all the network events on a single pane and find the point of contact or point of the incident."
"Real-time monitoring makes life quite easy for me."
"I like FortiSIEM because it integrates natively with our other Fortinet solutions and the Fortinet Fabric, but it also integrates with Cisco, Palo Alto and other security fabrics."
"Fortinet FortiSIEM is highly scalable. I would rate its scalability nine out of ten."
"It can integrate with almost any cybersecurity tool available in the market."
 

Cons

"When compared with some competitors, in terms of performance, the CPU and RAM requirements and the capability of coordination with development all need some improvement."
"They could work on their documentation. If there's anything about the solution that needs improvement, it's that. For example, documentation already is on a very high level but specifically on the CLI there are tons of features which can be fine-tuned and thousands of commands are very difficult to document. If they could make this easier, it would improve the overall solution."
"We need to see incident reports about the event log, without events from the administrator or through human interaction."
"The UI could improve in Fortinet FortiSIEM. Humans view the UI frequently for data and if it was more visually pleasing it would be beneficial."
"When our team tried configuring logs for Microsoft SQL, it did not work."
"The solution needs to do a better job with third party integration. Right now, that's lacking on the solution. I specifically am talking about the AWS environment. Most of the AWS environment products do not have that capability to integrate."
"Customer support service could be better."
"Their technical support is horrible. By horrible, I mean a train wreck of a disaster that has fallen off a bridge and caught fire."
"Support is an issue because they have a limited number of resources."
 

Pricing and Cost Advice

"Fortinet FortiSIEM is cheaper compared to other products."
"We bought the perpetual license, so we own the product, but there is a three-year support renewal fee for that."
"Fortinet FortiSIEM is very cost-efficient compared to other SIEM solutions."
"Manageable, however would be better as pay as you go versus CapEX."
"The price of the solution is expensive. The license is scalable. If there are 10 devices it is simple to license."
"The tool is really expensive. For what the tool does for our team, the price is fair."
"Fortinet FortiSIEM is not an expensive solution."
"Fortinet's products are not expensive, it is less than the competition."
"It’s a single license platform."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Government
8%
Manufacturing Company
7%
Computer Software Company
16%
Comms Service Provider
12%
Manufacturing Company
9%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

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?
As a service, the cost is reasonable and affordable with scalable pricing based on the number of monitored devices. However, setting it up for oneself as an enterprise-licensed product can be quite...
What needs improvement with Fortinet FortiSIEM?
The built-in APIs in Fortinet FortiSIEM are somewhat lacking and could be improved for better integration with external ITSM products. Improving software stability and reducing bugs will make it a ...
What is your experience regarding pricing and costs for Stellar Cyber Open XDR?
If you purchase directly from Stellar, you need to have more than a thousand users for the cost to be reasonable. So for larger companies, it’s more reasonable than for small ones. Otherwise, we ne...
What needs improvement with Stellar Cyber Open XDR?
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 compl...
What is your primary use case for Stellar Cyber Open XDR?
We basically took Stellar platform and are now sell it to our customers. There are different use cases, but it’s mainly focused on incident response. Customers typically have a range of technologie...
 

Also Known As

FortiSIEM, AccelOps
No data available
 

Overview

 

Sample Customers

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.
Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City
Find out what your peers are saying about Splunk, Wazuh, Microsoft and others in Security Information and Event Management (SIEM). Updated: March 2025.
839,422 professionals have used our research since 2012.