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Fortinet FortiSIEM vs Graylog Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

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)
10th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
75
Ranking in other categories
AI Observability (14th)
Graylog Security
Ranking in Security Information and Event Management (SIEM)
61st
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 2.3%, down from 3.3% compared to the previous year. The mindshare of Graylog Security is 0.6%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiSIEM2.3%
Graylog Security0.6%
Other97.1%
Security Information and Event Management (SIEM)
 

Featured Reviews

SY
Network Engineer at Ogma Consulting
Comprehensive monitoring boosts security, yet incident management features need expansion
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management. Currently, to manage repetitive incidents or for remediation, I need to use a separate software called FortiSOAR. Additionally, the search functionality in FortiAI should be improved to provide more precise results, making it easier for me to understand what actions need to be taken.
Tony Zafiropoulos - PeerSpot reviewer
Owner/ Chief Engineer at Fixvirus.com
Aggregates logs in one place and helps to review data points
We tried Graylog Security, starting with their inexpensive open-source version. We tested it out and continued using it for a while. As for the main differences between Graylog Security and other vendors, some users might prefer cloud-based platforms over on-premises solutions. It isn't inherently cloud-native, but that might not matter much for some.

Quotes from Members

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

Pros

"FortiSIEM's log correlation is good."
"We only evaluated this solution and loved the capabilities that it offers."
"We have found the most important features in Fortinet FortiSIEM to be the correlation, file utility check, latest file, and hash changes. These features are important for us."
"The event correlation is pretty robust. The GUI is pretty good."
"Easy alert setup which enables different alerts in different categories."
"We have many application systems, and I can set up Fortinet FortiSIEM for users to monitor their systems."
"The solution is easy to use and user-friendly."
"We like the integration of all of these Fortinet platforms together. Everything is integrated well, and we are able to sell that as a service to our customers."
"The tool aggregates logs. We can see the logs in one place."
"We use the solution to collect logs."
 

Cons

"They need to integrate better with Cisco and Palo Alto."
"The deployment of the platform took some time to set up and configure."
"Fortinet FortiSIEM could improve by having better integration and extensions. This would benefit by allowing us to give more rules."
"With FortiSIEM, the issue has to do with the ways we can generate a report. It's not as flexible compared to that with other SIEM tools, like Splunk."
"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."
"Fortinet FortiSIEM could improve to extend to several locations or sites."
"There are some connectivity issues with FortiAnalyzer and FortiGate."
"The reporting feature is not very attractive for the upper management and I am not able to perform complex/nested queries."
"Graylog Security needs to incorporate security scorecards."
 

Pricing and Cost Advice

"Fortinet's products are not expensive, it is less than the competition."
"The solution is available for both, perpetual and subscription licenses."
"The price of Fortinet FortiSIEM was reasonable compared to other solutions."
"Pricing is acceptable for more than 90% of our customers, as they normally get discounts."
"FortiSIEM's licensing is based on EPS, and its pricing is competitive in the market."
"The price of Fortinet FortiSIEM is a lot less when compared to other solutions."
"We bought the perpetual license, so we own the product, but there is a three-year support renewal fee for that."
"There are additional features that cost more than the standard licensing fees."
"I rate the tool's pricing a one out of ten."
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Top Industries

By visitors reading reviews
Financial Services Firm
9%
Comms Service Provider
9%
Construction Company
8%
Manufacturing Company
8%
Educational Organization
14%
Comms Service Provider
10%
Construction Company
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise22
Large Enterprise24
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Fortinet FortiSIEM?
My experience with pricing, setup cost, and licensing for Fortinet FortiSIEM is wonderful, as it offers an excellent license compared to other vendors.
What needs improvement with Fortinet FortiSIEM?
Fortinet FortiSIEM is great overall. Performance could be enhanced, but I do not wish to elaborate on needed improvements.
What is your primary use case for Fortinet FortiSIEM?
My main use case for Fortinet FortiSIEM is building a SOC and serving as an event management platform for correlating events in my work. I use Fortinet FortiSIEM for event correlation by building a...
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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.
Information Not Available
Find out what your peers are saying about Fortinet FortiSIEM vs. Graylog Security and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.