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Fortinet FortiAnalyzer vs LogRhythm SIEM vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

ROI

Sentiment score
6.9
Fortinet FortiAnalyzer offers high ROI with competitive pricing, cost savings, and efficient functionality for medium-sized deployments.
Sentiment score
8.0
LogRhythm SIEM boosts ROI, visibility, and security compliance, offering cost-effective risk management and productivity benefits, especially for medium enterprises.
Sentiment score
6.5
Splunk Enterprise Security enhances visibility, improves error resolution, automates processes, and integrates well, though ROI assessment can be challenging.
The impact of the tool is low when the functionalities are inaccessible due to resource consumption.
Fortinet is highly efficient for moderate deployments and provides a secure platform for medium-sized networks and data centers.
I have seen a return on investment with Fortinet FortiAnalyzer due to its competitive pricing and straightforward licensing model based on the amount of log data processed per day.
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Customers see the value in investing in this solution, particularly when it helps resolve issues quickly, turning a potential 20-hour response into one hour.
 

Customer Service

Sentiment score
7.2
Fortinet FortiAnalyzer's customer support receives mixed feedback, praised for responsiveness but criticized for inconsistency and regional variations.
Sentiment score
6.9
LogRhythm SIEM's support is knowledgeable and responsive, though consistency and initial response times need improvement.
Sentiment score
6.4
Splunk Enterprise Security support is knowledgeable but occasionally slow, with mixed efficiency reviews and valuable community resources.
Customer service and support for Fortinet FortiAnalyzer are quite helpful and responsive.
Technical support is good, and I rate it ten out of ten.
The support service is very slow and incompetent.
The technical support is good; we have a separate portal for partners, and since we are paying for the service, they provide a response timeframe based on severity—critical issues are addressed within four hours, medium issues within one day, and non-urgent issues may take a couple of days.
Customer support is very helpful and effectively solves my problems.
We have paid for Splunk support, and we’re not on the free tier hoping for assistance; we are a significant customer and invest a lot in this service.
If you want to write your own correlation rules, it is very difficult to do, and you need Splunk's support to write new correlation rules for the SIEM tool.
They try to close issues as soon as possible, often just offering documentation links.
 

Scalability Issues

Sentiment score
6.4
Fortinet FortiAnalyzer is considered scalable, highly rated in virtual environments, but costs and hardware can limit expansion.
Sentiment score
7.6
LogRhythm SIEM is praised for its strong scalability and effectiveness in accommodating expanding demands across diverse environments.
Sentiment score
7.5
Splunk Enterprise Security offers scalable, flexible solutions handling large data volumes effortlessly, though cost concerns persist, especially on-premise.
Fortinet FortiAnalyzer is scalable, especially for the VM versions, as additional space can be provisioned from the servers as needed.
FortiAnalyzer is a scalable product.
It typically handles three to five years of expansion effectively.
LogRhythm SIEM is highly scalable as it has modular components allowing me to expand storage, indexing, or other resources as needed.
LogRhythm SIEM is scalable; it can handle about 200 or 500 devices without much difference.
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
It is easy to scale.
It's big in a Central European context, and small from a Splunk North American context.
 

Stability Issues

Sentiment score
7.4
Fortinet FortiAnalyzer is highly stable, with strong user ratings, improved performance, and rare connectivity or resource issues.
Sentiment score
4.4
LogRhythm SIEM is generally stable, reliable, and efficient, with some performance issues resolved through updates and proper resource allocation.
Sentiment score
7.6
Splunk Enterprise Security is stable and resilient, though resource-heavy queries can cause occasional bugs, needing optimized use cases.
We faced some CPU consumption issues, which caused the machine to slow down and required a restart of FortiAnalyzer.
It remains stable during implementation for one or two years.
It provides a reliable solution for managing network-wide data.
The platform needs regular updates to fix problems encountered with each quarterly patch and version release.
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
I would rate it a ten out of ten for stability.
 

Room For Improvement

Fortinet FortiAnalyzer needs UI improvements, better integration, enhanced analytics, and competitive pricing for multi-vendor compatibility and ease of use.
LogRhythm SIEM needs better integration, UI improvements, enhanced reports, and Linux-based support for efficiency and tool integration.
Splunk Enterprise Security users desire improved GUI, integration, pricing, training, data handling, and advanced features for better efficiency.
When licensing, each device is licensed separately, such as the firewall, which can become expensive.
This would help in analyzing various security incidents and events more effectively by delivering a handful of relevant logs instead of thousands.
Enhanced deep inspection features would make troubleshooting easier.
I have noticed some problems with parsing errors, event mismatches, and data mismatching, so ensuring accurate parsing and continuous improvement according to device updates are my basic expectations as a detection engineer.
A more user-friendly user interface with drag-and-drop features, similar to key competitors like Splunk, would be beneficial.
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
 

Setup Cost

Fortinet FortiAnalyzer's pricing is competitive but high, with subscription-based licensing that may be costly for smaller businesses.
LogRhythm SIEM offers competitive pricing with comprehensive features, though scalability and additional features may increase costs.
Splunk Enterprise Security is costly but valued for features and scalability, with pricing concerns for smaller businesses.
Its licensing model is based on the amount of log data processed per day, making it more cost-effective compared to QRadar, which is EPS and device-based.
In terms of pricing, FortiAnalyzer is not expensive.
In the Indian market, Fortinet's pricing is very competitive, allowing us to win most of our deals.
The license cost is around $10 per MPS.
I find LogRhythm SIEM affordable, as it is a bit less costly than QRadar.
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
I find it to be affordable, which is why every industry uses it.
 

Valuable Features

Fortinet FortiAnalyzer enhances network monitoring with comprehensive reporting, real-time insights, and seamless integration, benefiting users managing dispersed networks.
LogRhythm SIEM excels in threat detection, user-friendly interface, and integration, offering centralized logs and customizable alerts.
Splunk Enterprise Security excels in log management, data ingestion, and integration, enhancing security operations with user-friendly features.
The advanced analytics capabilities aid in threat detection by providing visibility into indicators of compromise.
The most valuable feature of Fortinet FortiAnalyzer is its ability to simplify and display logs clearly, providing details like which IPs are accessing the system, the destination, and the policies applied.
The log management is useful as we have connected around two hundred eighty-five walls and around fifteen to twenty plus firewalls with Fortinet FortiAnalyzer, making it highly beneficial compared to logging into each individual firewall.
The seamless integration for case management, along with a user-friendly dashboard user interface, makes tasks like threat hunting more efficient.
We have enough budget for cloud deployment, but we choose to keep it on-prem to ensure data privacy; cyberattacks are a concern, but data privacy is the foremost priority due to sensitive government information.
This capability is useful for performance monitoring and issue identification.
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
 

Mindshare comparison

As of August 2025, in the Log Management category, the mindshare of Fortinet FortiAnalyzer is 1.9%, down from 2.5% compared to the previous year. The mindshare of LogRhythm SIEM is 2.1%, down from 2.9% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.4%, down from 9.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security7.4%
Fortinet FortiAnalyzer1.9%
LogRhythm SIEM2.1%
Other88.6%
Log Management
 

Featured Reviews

Manikandan Kannan - PeerSpot reviewer
Simplifying log management by displaying detailed access information
The most valuable feature of Fortinet FortiAnalyzer is its ability to simplify and display logs clearly, providing details like which IPs are accessing the system, the destination, and the policies applied. This visualization and detail make managing logs more straightforward. In conjunction with our VMware setup, Fortinet FortiAnalyzer enhances organizational efficiency, meeting the standard log retention period for up to a year.
Mokhammad Rakhman - PeerSpot reviewer
User-friendly dashboard and machine learning capabilities improve threat hunting efficiency
LogRhythm SIEM has strong machine-learning capabilities with behavioral rules and analysis. The seamless integration for case management, along with a user-friendly dashboard user interface, makes tasks like threat hunting more efficient. Analytics and behavioral analysis help me save time with rule creation. Its scalability allows me to add components as needed. Overall, LogRhythm SIEM offers end-to-end visibility with a reasonable price.
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.
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Comparison Review

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Feb 26, 2015
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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
14%
Manufacturing Company
8%
Government
8%
Comms Service Provider
6%
Computer Software Company
13%
Government
10%
Financial Services Firm
8%
Manufacturing Company
7%
Computer Software Company
14%
Financial Services Firm
14%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business57
Midsize Enterprise20
Large Enterprise31
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise38
Large Enterprise82
By reviewers
Company SizeCount
Small Business105
Midsize Enterprise44
Large Enterprise225
 

Questions from the Community

What do you like most about Fortinet FortiAnalyzer?
The reporting features, which offer customization, real-time insights, and compliance support, are particularly notew...
What is your experience regarding pricing and costs for Fortinet FortiAnalyzer?
I have experience with pricing, licensing, and setup costs as I prepare quotes for clients. While Fortinet FortiAnaly...
What needs improvement with Fortinet FortiAnalyzer?
When I had contact with FortiManager and Fortinet FortiAnalyzer, it was not so easy, but with some reading or trainin...
What is the difference between log management and SIEM?
Rony, Daniel's answer is right on the money. There are many solutions for each in the market, a lot depends upon you...
What needs improvement with LogRhythm NextGen SIEM?
I cannot think of any specific features that LogRhythm SIEM can improve upon since it supports a wide variety of majo...
What do you like most about LogRhythm SIEM?
I find LogRhythm's log management capabilities to be beneficial.
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 a...
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 ingest...
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 monitor...
 

Also Known As

No data available
LogRhythm NextGen SIEM, LogRhythm, LogRhythm Threat Lifecycle Management, LogRhythm TLM
No data available
 

Overview

 

Sample Customers

General Directorate of Information Technology
Macy's, NASA, Fujitsu, US Air Force, EY, Abbott, HD Supply, SAB Miller, UCLA, Raytheon, Amtrak, Cargill
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 Wazuh, Splunk, Datadog and others in Log Management. Updated: July 2025.
866,088 professionals have used our research since 2012.