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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)
7th
Average Rating
7.6
Reviews Sentiment
5.8
Number of Reviews
75
Ranking in other categories
No ranking in other categories
Graylog Security
Ranking in Security Information and Event Management (SIEM)
37th
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 October 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 3.3%, up from 2.9% compared to the previous year. The mindshare of Graylog Security is 0.6%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
Fortinet FortiSIEM3.3%
Graylog Security0.6%
Other96.1%
Security Information and Event Management (SIEM)
 

Featured Reviews

Oliver Jackson - PeerSpot reviewer
Systems monitoring enhanced by firewall and intrusion detection features
My primary use case for Fortinet FortiSIEM is systems monitoring and alerting. I use it for standard functions like log monitoring, incident detection, and notification.  My customers are mostly medium-sized enterprises ranging from engineering companies, mining companies, independent schools, and…
Tony Zafiropoulos - PeerSpot reviewer
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

"Technical support is helpful."
"It's a very nice solution to work with."
"The interface is very easy to use. The connector in the core has FortiSIEM support from the vendor."
"Easy alert setup which enables different alerts in different categories."
"It provides extensive logging and record-keeping for internal networks, cloud applications, and services as well as perimeter physical network security."
"The most valuable features of Fortinet FortiSIEM are the SD-WAN, Global LAN, and application controls."
"There are things like dashboards and reports (pre-configured and custom) that let me know that things are operating the way they should be, and when they are not."
"It's very easy for anyone to work with."
"We use the solution to collect logs."
"The tool aggregates logs. We can see the logs in one place."
 

Cons

"The nodes on our network did not comply with the SIEM solution. They use a different format parking log."
"Their product support, in general, is not that great. The product support is in the same ecosystem. Their support is improving but it's not that great.vvv"
"An improvement would be if FortiSIEM's licensing was based on the number of nodes rather than the EPS."
"Fortinet FortiSIEM needs to provide better API integrations to users."
"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."
"It's difficult to integrate unsupported devices with FortiSIEM compared to QRadar. It's easier to integrate and develop processes in QRadar. It's harder to develop a custom process in FortiSIEM."
"FortiSIEM is a bit resource-hungry, so work should be done on hardware resource utilization to consume less hardware."
"Our customers are noticing configuration available in the GUI interface and I think that they should be equal."
"Graylog Security needs to incorporate security scorecards."
 

Pricing and Cost Advice

"Fortinet FortiSIEM is not an expensive solution."
"Manageable, however would be better as pay as you go versus CapEX."
"FortiSIEM's licensing is based on EPS, and its pricing is competitive in the market."
"The solution is available for both, perpetual and subscription licenses."
"Pricing is acceptable for more than 90% of our customers, as they normally get discounts."
"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."
"We bought the perpetual license, so we own the product, but there is a three-year support renewal fee for that."
"I rate the tool's pricing a one out of ten."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
9%
Comms Service Provider
7%
Government
6%
Computer Software Company
20%
Educational Organization
11%
Financial Services Firm
6%
Retailer
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise21
Large Enterprise23
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?
I am not familiar with the price and cost of Fortinet FortiSIEM. I cannot tell you if it is high, expensive, or low. However, I can say that it is cost-effective as it provides everything needed.
What needs improvement with Fortinet FortiSIEM?
Regarding Fortinet FortiSIEM, I cannot identify any specific areas for improvement because I can find everything I need. For the time being, I cannot find a real point for improvement. Everything i...
What do you like most about Graylog Security?
The tool aggregates logs. We can see the logs in one place.
What needs improvement with Graylog Security?
Graylog Security needs to incorporate security scorecards.
 

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: September 2025.
869,760 professionals have used our research since 2012.