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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)
52nd
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
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) (34th)
 

Mindshare comparison

As of April 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 3.1%, up from 3.0% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.3%, up from 0.7% 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

"Some of our customers who use this solution have seen improvement in their connection with load balancing on both connections."
"Fortinet FortiSIEM's most valuable feature is the simplicity in handling multi-tenancy and the ability to switch between different clients at the same time. That was handled flawlessly."
"The most valuable features for us are the built-in reports and alerts, along with the extreme flexibility in reporting and rule generation."
"The interface is very easy to use. The connector in the core has FortiSIEM support from the vendor."
"The stability is very reliable. It offers very good performance."
"We're able to get real-timec as well as our customer networks that we're monitoring at all times."
"Both the collecting logs and duo correlation are valuable features for us."
"FortiSIEM provides a single PIN to monitor SOC and NOC. It's a nice tool for integration and monitoring. It provides multiple categories for monitoring based on security designations like low, medium, and high."
"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."
"It can integrate with almost any cybersecurity tool available in the market."
 

Cons

"The tool's technical team's response time is too high, and they are not available even when they know that there are many pending issues."
"Fortinet FortiSIEM could improve by having better integration and extensions. This would benefit by allowing us to give more rules."
"Customer support service could be better."
"If there is a configuration on the wrong side of the network or there are changes that result in harm to our IT infrastructure, the solution should immediately fix it."
"FortiSIEM needs to expand its integration with third-party vendors. I don't know if Forcepoint has been added, but there were limited resources for integrating Forcepoint solutions when we implemented FortiSIEM. It integrates well with other Fortinet products and solutions from established cybersecurity companies like Palo Alto but doesn't integrate with some of the newer vendors."
"FortiSIEM could be better integrated with other vendors."
"The product does not have Security Orchestration and Automation Response, I would recommend adding this feature."
"The deployment of the platform took some time to set up and configure."
"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

"Pricing is acceptable for more than 90% of our customers, as they normally get discounts."
"This is probably more on the lower cost end of the spectrum compared to competing products. Fortinet's license model is based on events per second, which makes sense, but that's not typical. It makes it very hard to calculate what your costs are going to be as you scale the platform because some log sources, such as firewall logs, are very noisy, and there are lots and lots of events per second, but some of them are not. So, it becomes a bit of a science experiment trying to guess what your costs are going to be as you scale the solution. This is where other competing products perhaps have a more straightforward license model."
"Its price can be better. We are Fortinet partners, so we can get discounts, but its price can be an issue at the beginning for others. There is a licensing scheme for every case. There are three licensing schemes that we can choose from."
"Fortinet FortiSIEM is not an expensive solution."
"We bought the perpetual license, so we own the product, but there is a three-year support renewal fee for that."
"They have a yearly subscription."
"Pricing is determined based on the customer's budget."
"Please be cheaper and more simplified."
"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
7%
Comms Service Provider
7%
Computer Software Company
15%
Comms Service Provider
12%
Manufacturing Company
8%
Financial Services Firm
7%
 

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?
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...
 

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.
845,406 professionals have used our research since 2012.