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LogRhythm SIEM vs Security Onion comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 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

LogRhythm SIEM
Ranking in Log Management
14th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
176
Ranking in other categories
Security Information and Event Management (SIEM) (14th)
Security Onion
Ranking in Log Management
24th
Average Rating
7.4
Reviews Sentiment
7.2
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Log Management category, the mindshare of LogRhythm SIEM is 3.1%, up from 2.1% compared to the previous year. The mindshare of Security Onion is 1.8%, down from 4.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
LogRhythm SIEM3.1%
Security Onion1.8%
Other95.1%
Log Management
 

Featured Reviews

SumitKumar20 - PeerSpot reviewer
Security Engineer at Granicus Inc.
Tool consistently aids in effective threat detection and monitoring but could benefit from improved log source management and resource optimization
One major area for improvement in LogRhythm SIEM is the lack of volume measurement capability in terms of storage. There is currently no way to determine how much data is being consumed in terms of gigabytes, terabytes, or petabytes from particular devices or environments. This information is crucial for planning future storage needs and scalability. The system monitor (collector) agent has issues with resource consumption. Even when not actively collecting data, the agent continues to consume significant CPU and memory resources, which can be particularly problematic for small business environments with limited resources. LogRhythm SIEM could improve by adding more default device support. While they have good default settings for devices such as Palo Alto firewalls, custom log sources often require extensive work. Increasing the number of supported devices with built-in policies and functionality would reduce the need for custom work. Competitive SIEM tools often provide more comprehensive coverage for various devices and vendors.
HJ
Manager at teshama
Centralized threat monitoring has improved visibility but demands complex setup and configuration
The best features Security Onion offers include acting as the intrusion detection system in my organization and helping me to address traffic, logs, and events happening within the organization. Since Security Onion is an open-source system that integrates with tools like Suricata and Zeek with the ELK stack, it enables threat detection and response capabilities, delivering high-level security measures at a cost, making it suitable for businesses of varying skill levels. These integrations with Suricata and Zeek have greatly impacted our workflow and our team's effectiveness by helping us address issues such as identifying intrusions, evaluating threats, and overseeing log files. This tool is very cost-effective, making it suitable for any size of organization wanting to use it.

Quotes from Members

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

Pros

"It has helped us centralize and have better visibility into devices on our network. We are better able to respond to threats in a timely manner."
"When it comes to dealing with support, all my interactions have been great. Everyone has known what they're doing and have been quick to respond. They seem to always know the answer. I haven't stumped anybody yet."
"The Web Console is my favorite. It enables me, at a glance, to see the health of the environments."
"Scalability is extremely great."
"Overall, my rating for LogRhythm SIEM is nine out of ten."
"We integrated Azure logs with it and that makes it simpler. Rather than having to log into the portal, we can just check everything in one place. We can compare those to our Windows and host logs to see if any problems correlate between them."
"Alarms are the most valuable feature. We also like the dashboard and how things are at your fingertips. The fact that we can now edit the report templates is going to be a great thing."
"The solutions have been great for us; we use the SmartResponse to do most of our automation work for us, to block attacks, and to kick off users if they're doing anything malicious, and it's saved us a lot of man hours."
"Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."
"Security Onion is the most mature solution in the market."
"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."
"We use Security Onion for internal vulnerability assessment."
"Security Onion has positively impacted my organization by greatly improving our security posture, making alert triage easier to handle, simplifying the analysis of threats, and decreasing the cost of threat analysis and detection."
 

Cons

"Sometimes, LogRhythm will parse the rule but perhaps it won't get every little detail out of the rule."
"My biggest challenge always come back to log sources."
"The initial setup is not so easy because it is quite a process."
"The initial setup is complex and I rate it a six out of ten."
"The integration is slightly difficult with other assets, like EDR technologies or firewalls."
"However from a price point it's very attractive and I think that as it matures we'll look at probably moving over onto the LogRhythm playbooks if it can support the kind of things that we're leveraging out of this other product and it looks like that's their plan."
"Move it to Linux. I would like to see it get off the SQL Server."
"It should be improved for automated setup and auto-configuration. There should be ease of integration and ease of setup."
"Security Onion's user interface could be improved."
"The initial setup of the solution is a little bit difficult."
"The product is not easy to learn."
"For Security Onion, setting up and configuring the system can be quite challenging for newcomers due to the need for a grasp of networking and security concepts."
"Security Onion can be made easier to set up initially, as it is somewhat difficult at the start, but once configured, it becomes a great tool to use."
 

Pricing and Cost Advice

"The product is inexpensive than other tools."
"LogRhythm's pricing and licensing is extremely competitive and it's one of the top three reasons we continue to invest in the platform."
"The pricing is very reasonable and accessible compared to other products in the market but I am not very sure about the exact licensing cost per year for our company."
"I would recommend talking to the rep. That's the biggest thing because they will know what questions to ask."
"NextGen SIEM's pricing is moderate."
"If you don't have your staff, absolutely look into the co-pilot and factor that into your cost evaluation."
"LogRhythm's licensing is based on MPS. There are some add-on features like advanced UEBA, the cloud component for advanced UEBA, and SIEM."
"In comparison to the competition, they are more affordable. This allows us to do more with less."
"It is an open-source solution."
"Security Onion is an open-source solution."
"Security Onion is a free solution."
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Top Industries

By visitors reading reviews
Construction Company
13%
Financial Services Firm
9%
Outsourcing Company
8%
Comms Service Provider
7%
University
12%
Comms Service Provider
12%
Government
10%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise39
Large Enterprise83
No data available
 

Questions from the Community

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 your ability to manage such tools and your budget. A small operation may be best s...
What needs improvement with LogRhythm NextGen SIEM?
LogRhythm SIEM could learn from Wazuh, as Wazuh has a built-in mechanism that allows you to write custom scripting and scripts through languages that Wazuh can then trigger, which is somewhat bette...
What is your experience regarding pricing and costs for LogRhythm SIEM?
I find LogRhythm SIEM affordable, as it is a bit less costly than QRadar, although I have not been involved in negotiation charges; however, from the manager's approval, I see it as affordable.
What needs improvement with Security Onion?
For Security Onion, setting up and configuring the system can be quite challenging for newcomers due to the need for a grasp of networking and security concepts. The specific challenges that make t...
What advice do you have for others considering Security Onion?
The advice I would give to others looking into using Security Onion is that it works well for setting up within a Linux environment, bringing a new platform to run and maintain. The application its...
What is your primary use case for Security Onion?
My main use case for Security Onion is its integration with multiple platforms and its function as a centralized system to visualize logs and events.
 

Also Known As

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

Overview

 

Sample Customers

Macy's, NASA, Fujitsu, US Air Force, EY, Abbott, HD Supply, SAB Miller, UCLA, Raytheon, Amtrak, Cargill
Information Not Available
Find out what your peers are saying about LogRhythm SIEM vs. Security Onion and other solutions. Updated: August 2026.
908,834 professionals have used our research since 2012.