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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

"Fortinet FortiSIEM is easy to use."
"It's easy to manage. There's a web interface and a command line, depending on what the user is comfortable with. There's a large knowledge base available, and the support is timely."
"With the help of FortiSIEM we have improved the cybersecurity posture of our clients and ours, and through the early detection of threats, it allows us to follow up on each security incident and easily communicate to asset managers about related security events, reducing remediation time."
"We're able to get real-timec as well as our customer networks that we're monitoring at all times."
"This is a very stable product - we have never had a crash with it."
"It's a very nice solution to work with."
"Fortinet FortiSIEM is less costly than other products and is available 24/7."
"Analytics is the most valuable feature, and the business service summaries in the dashboards and the correlations for the SIEM are also valuable features."
"We use the solution to collect logs."
"The tool aggregates logs. We can see the logs in one place."
 

Cons

"Our customers are noticing configuration available in the GUI interface and I think that they should be equal."
"Our team tried configuring MS SQL database logs with Fortinet FortiSIEM, but it did not work for some time."
"The only drawback is the licensing model. It can get expensive if you want to integrate more solutions."
"The patch management on the software needs to be better."
"The nodes on our network did not comply with the SIEM solution. They use a different format parking log."
"Fortinet FortiSIEM needs to provide better API integrations to users."
"The solution's technical support didn't help our company a lot."
"In the CMDB configuration monitoring, 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."
"Graylog Security needs to incorporate security scorecards."
 

Pricing and Cost Advice

"We pay for a license for FortiSIEM. We pay for the license and renewal."
"The price of Fortinet FortiSIEM was reasonable compared to other solutions."
"The price of Fortinet FortiSIEM is a lot less when compared to other solutions."
"The price is competitive."
"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."
"The tool is really expensive. For what the tool does for our team, the price is fair."
"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."
"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.
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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.