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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 feature is the anomaly-reporting alarms."
"We find the solution to be stable."
"This solution offers extensive customization options, making it possible to adapt it precisely to their requirements."
"Real-time monitoring makes life quite easy for me."
"Analytics is the most valuable feature, and the business service summaries in the dashboards and the correlations for the SIEM are also valuable features."
"It detects new technologies, vulnerabilities, and emerging threats on the internet."
"The seamless integration with FortiGate is the solution's most valuable aspect."
"FortiSIEM is a great tool for making security processes transparent."
"We use the solution to collect logs."
"The tool aggregates logs. We can see the logs in one place."
 

Cons

"There is no proper guide for integration or configuration."
"There is no proper guide for integration or configuration. They need to improve the documentation library."
"Patching is not great - we're not getting the support we'd expect."
"There are some connectivity issues with FortiAnalyzer and FortiGate."
"Its training can be improved. Its price also needs to be improved."
"Fortinet FortiSIEM could improve by having better integration and extensions. This would benefit by allowing us to give more rules."
"Our customers are noticing configuration available in the GUI interface and I think that they should be equal."
"The customer service team needs additional experience and knowledge of the solution so the answers they provide are more accurate and helpful."
"Graylog Security needs to incorporate security scorecards."
 

Pricing and Cost Advice

"The solution is available for both, perpetual and subscription licenses."
"We bought the perpetual license, so we own the product, but there is a three-year support renewal fee for that."
"We pay for a license for FortiSIEM. We pay for the license and renewal."
"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."
"The tool is really expensive. For what the tool does for our team, the price is fair."
"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."
"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."
"FortiSIEM's licensing is based on EPS, and its pricing is competitive in the market."
"I rate the tool's pricing a one out of ten."
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894,738 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%
Outsourcing Company
7%
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.
894,738 professionals have used our research since 2012.