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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)
9th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
75
Ranking in other categories
AI Observability (10th)
Graylog Security
Ranking in Security Information and Event Management (SIEM)
46th
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 May 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 2.3%, down from 3.2% compared to the previous year. The mindshare of Graylog Security is 0.6%, up from 0.6% 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

"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."
"With the online-based monitoring we've set up, we've been able to watch trends of attempted attacks on our network, and we're also able to monitor our account issues internally as attackers attempt to log into our accounts."
"FortiSIEM helped us discover all the threats at the time that were attacking the IT services of the company."
"This solution offers extensive customization options, making it possible to adapt it precisely to their requirements."
"The event correlation is pretty robust. The GUI is pretty good."
"The primary valuable feature is that it has replaced a whole lot of other products with one platform."
"I like the various options, including the option for CMDB and the easier access to create rules, playbooks, or use cases, and it's also easier to use for creating dashboards and reports."
"Fortinet FortiSIEM is easy to use."
"We use the solution to collect logs."
"The tool aggregates logs. We can see the logs in one place."
 

Cons

"Creating parsers to try make unknown events or currently unsupported devices produce meaningful information is extremely cumbersome."
"The support of the product changed recently, and I don't think it's for the better. They should work to improve the support they offer to clients."
"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."
"The log collection and configuration management are not great."
"There is no proper guide for integration or configuration."
"The solution needs to do a better job with third party integration; most of the AWS environment products do not have the capability to integrate."
"There could be improvements like introducing some solutions directly into FortiSIEM to avoid the need for separately purchasing additional tools like FortiStore."
"The interface needs some improvements because it's a bit cumbersome when you're trying to view items."
"Graylog Security needs to incorporate security scorecards."
 

Pricing and Cost Advice

"Fortinet FortiSIEM is cheaper compared to other products."
"The price of Fortinet FortiSIEM was reasonable compared to other solutions."
"The price of the solution is expensive. The license is scalable. If there are 10 devices it is simple to license."
"There are additional features that cost more than the standard licensing fees."
"They have a yearly subscription."
"If one is cheap and ten is expensive. I rate the tool's price as an eight out of ten. Compared with Splunk or Oracle, Fortinet is cheap."
"Fortinet FortiSIEM is not an expensive solution."
"The price of Fortinet FortiSIEM is a lot less when compared to other solutions."
"I rate the tool's pricing a one out of ten."
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893,221 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
10%
Comms Service Provider
9%
Computer Software Company
9%
Manufacturing Company
6%
Educational Organization
15%
Construction Company
7%
Comms Service Provider
7%
Computer Software Company
6%
 

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 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?
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 do you like most about Graylog Security?
The tool aggregates logs. We can see the logs in one place.
What is your primary use case for Graylog Security?
I feed different data points to the tool and review them.
What advice do you have for others considering Graylog Security?
I rate the overall product an eight out of ten. It's a good option for getting started.
 

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: April 2026.
893,221 professionals have used our research since 2012.