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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)
13th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
75
Ranking in other categories
AI Observability (15th)
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 August 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 2.2%, down from 3.3% compared to the previous year. The mindshare of Graylog Security is 0.5%, 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 FortiSIEM2.2%
Graylog Security0.5%
Other97.3%
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

"Every feature is good. This is one of the greatest SIEM products on the market."
"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."
"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."
"We have many application systems, and I can set up Fortinet FortiSIEM for users to monitor their systems."
"The solution’s IP database is awesome."
"Fortinet FortiSIEM provides good detection against advanced threats."
"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."
"It gives greater visibility via the dashboards into the real-time status of the network and also provides specific alerts and performance monitoring."
"The tool aggregates logs. We can see the logs in one place."
"We use the solution to collect logs."
 

Cons

"The policy editing should be easier. Right now, it's too hard."
"Fortinet FortiSIEM could improve by having a signature update."
"There is no proper guide for integration or configuration. They need to improve the documentation library."
"FortiSIEM is not a market leader in the SIEM space."
"FortiSIEM is a bit resource-hungry, so work should be done on hardware resource utilization to consume less hardware."
"The dashboards need to be improved."
"There could be more AI features included in the product."
"Fortinet FortiSIEM needs to provide better API integrations to users."
"Graylog Security needs to incorporate security scorecards."
 

Pricing and Cost Advice

"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."
"Pricing is determined based on the customer's budget."
"Pricing is acceptable for more than 90% of our customers, as they normally get discounts."
"There is a need to make yearly payments towards the licensing charges attached to the product. The free version license of the product is available for two months."
"Please be cheaper and more simplified."
"The price of the solution is expensive. The license is scalable. If there are 10 devices it is simple to license."
"FortiSIEM's licensing is based on EPS, and its pricing is competitive in the market."
"The tool is really expensive. For what the tool does for our team, the price is fair."
"I rate the tool's pricing a one out of ten."
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Top Industries

By visitors reading reviews
Comms Service Provider
10%
Financial Services Firm
9%
Construction Company
9%
Manufacturing Company
8%
Educational Organization
14%
Comms Service Provider
11%
Construction Company
7%
Outsourcing 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.
908,800 professionals have used our research since 2012.