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Fortinet FortiSIEM vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 5, 2025

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)
8th
Average Rating
7.6
Reviews Sentiment
6.7
Number of Reviews
73
Ranking in other categories
No ranking in other categories
Splunk Enterprise Security
Ranking in Security Information and Event Management (SIEM)
1st
Average Rating
8.4
Reviews Sentiment
7.6
Number of Reviews
305
Ranking in other categories
Log Management (2nd), IT Operations Analytics (1st)
 

Mindshare comparison

As of April 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 3.1%, up from 3.0% compared to the previous year. The mindshare of Splunk Enterprise Security is 9.5%, down from 12.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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…
ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The event correlation is pretty robust. The GUI is pretty good."
"The most valuable feature of Fortinet FortiSIEM is the correlation of many events."
"Some of our customers who use this solution have seen improvement in their connection with load balancing on both connections."
"The most valuable feature is auto-discovery. When you send logs from any device to port 514, it helps register those devices automatically."
"The interface is very easy to use. The connector in the core has FortiSIEM support from the vendor."
"The ability to write my own parsers for the devices that are not supported by Fortinet is the most valuable feature."
"The advanced agents used to collect logs have been most valuable. We have also made use of the advanced intelligence this solution offers."
"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 is a very stable solution. I never really had a hiccup with the tool."
"Its alerting is most valuable. We have alerts set up in our environment for certain attacks, such as an SQL injection attempt. We have a front-facing server for the website. It is out there, and anybody can access it. When those SQL injection attempts come in, we are able to detect that with the alert."
"We have a one stop dashboard for health of some of our services where you can click in and it takes you to other dashboards that have custom near real-time metrics that show the application's health."
"The technical support is among the best in the market."
"The ability to quickly search logs, performance data, and other inputs has helped tremendously with troubleshooting."
"Splunk would be my choice for the presentation layer because it comes with inbuilt reports and a dashboard that you can customize."
"It can log more logs than other solutions. It's a good way to troubleshoot problems."
"Splunk has facilitated the correlation of information security logs to look for incidents which could cause damage to the company's infrastructure, as well as financial losses from leaks."
 

Cons

"Fortinet FortiSIEM could improve to extend to several locations or sites."
"When compared with some competitors, in terms of performance, the CPU and RAM requirements and the capability of coordination with development all need some improvement."
"Fortinet FortiSIEM needs to provide better API integrations to users."
"Network detection and response is a separate product."
"The nodes on our network did not comply with the SIEM solution. They use a different format parking log."
"It would be good if the solution offered even more configuration options, especially in relation to the VPN so that it continues to be a very flexible option."
"I would like to see more integration with other platforms."
"An improvement would be if FortiSIEM's licensing was based on the number of nodes rather than the EPS."
"I would like additional features in different programming models with the support for writing queries in SQL or other languages, such as C#, Java, or some other type of query definitions."
"My company could benefit from doing more Splunk training with Splunk consultants teaching us how to use it."
"Splunk could be improved by reducing the cost. The cost is one of the biggest challenges for us in keeping to our production requirements."
". Having a trial version or more training on Splunk would be helpful."
"The Web Application Firewall will send you too much information because it's more dedicated to security than a normal firewall."
"Some of the search functions can be better. There has been a lot of talk at the conference about the update of SPL before each iteration. That will be a lot of help."
"It would be nice if Splunk reduced the cost of training. Their training sessions are way too costly."
"I want Splunk Enterprise Security to release more AI and machine learning features in the future."
 

Pricing and Cost Advice

"The solution is available for both, perpetual and subscription licenses."
"The price of Fortinet FortiSIEM was reasonable compared to other solutions."
"They have a yearly subscription."
"Please be cheaper and more simplified."
"Fortinet's products are not expensive, it is less than the competition."
"Fortinet FortiSIEM is very cost-efficient compared to other SIEM solutions."
"Manageable, however would be better as pay as you go versus CapEX."
"Fortinet FortiSIEM is cheaper compared to other products."
"I am not personally involved with the pricing of the solution."
"Splunk's costing is a little more difficult. The pricing method is complicated, and the way that costing is calculated in Splunk is a little more difficult."
"Splunk Enterprise Security is expensive."
"Free Splunk license for PoCs on personal machines and the ability to scale the PoC to an enterprise level app."
"I've heard Splunk is often preferred over other options, but the cost can be prohibitive for smaller organizations."
"Splunk Enterprise Security's pricing is pretty competitive."
"The price can always be lower, but it is fair at the moment. The cost efficiencies depend on the licensing and how much data we are bringing in. We have a fairly large footprint, so it is cost-effective."
"I think we recently switched to the SVC pricing compared to the ingest pricing."
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Comparison Review

VS
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Government
7%
Comms Service Provider
7%
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
As a service, the cost is reasonable and affordable with scalable pricing based on the number of monitored devices. However, setting it up for oneself as an enterprise-licensed product can be quite...
What needs improvement with Fortinet FortiSIEM?
The built-in APIs in Fortinet FortiSIEM are somewhat lacking and could be improved for better integration with external ITSM products. Improving software stability and reducing bugs will make it a ...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is asking to miss details that are critical, and ending up a statistic. Also, rememb...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we...
 

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.
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Fortinet FortiSIEM vs. Splunk Enterprise Security and other solutions. Updated: March 2025.
845,040 professionals have used our research since 2012.