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LogRhythm SIEM vs Security Onion comparison

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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
11th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
176
Ranking in other categories
Security Information and Event Management (SIEM) (13th)
Security Onion
Ranking in Log Management
22nd
Average Rating
7.8
Reviews Sentiment
7.2
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Log Management category, the mindshare of LogRhythm SIEM is 3.0%, up from 2.2% compared to the previous year. The mindshare of Security Onion is 1.7%, down from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
LogRhythm SIEM3.0%
Security Onion1.7%
Other95.3%
Log Management
 

Featured Reviews

RS
Engineer Information Security at N-Able (Pvt) Ltd
Advanced threat detection has improved investigations but complexity and resource use need refinement
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 better and more matured in Wazuh compared to LogRhythm SIEM. Additionally, the parsers that I write for LogRhythm SIEM tend to get quite complex for log parsing, while with Wazuh, I can achieve a similar parser with much less complexity. Those are some of the pain points that some of our customers have been expressing. If LogRhythm SIEM could make a lightweight version of their solution, that would be quite competitive because some of my customers have a very large need but refuse to go with LogRhythm SIEM due to its complexity and high resource intensity. Therefore, they have been moved to Wazuh, which I am deploying for them. Even though LogRhythm SIEM has extremely good capabilities, their resource utilization is too heavy for certain customers, so if they could make a separate, lightweight version, that would be quite beneficial.
Hiten Nandasana - PeerSpot reviewer
Angular developer at Flourish software
Centralized monitoring has strengthened threat detection and supports faster incident investigations
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 integrates well with our existing tools, primarily using Linux systems in our organization, allowing us to monitor logs and manage threat detection and operations in the public cloud effectively. Security Onion is very helpful in meeting compliance requirements and supports regular standards for our environment. I advise organizations that use Linux or have network security knowledge to consider Security Onion, as it satisfies requirements such as threat detection and log management systems. I would rate this review eight out of ten.

Quotes from Members

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

Pros

"For what it does, LogRhythm works pretty well."
"In terms of security, LogRhythm NextGen SIEM is great."
"The major feature of this solution is its easy configuration which helps different team members to work on it effectively. This kind of feature is not available in other solutions because of a request for specialised schemes for configuration report extraction and searching. Another feature that I really admire is the significant improvement in the compliance in the auditing process by the solution. Our organisation-specific complaints require where the mailbox data needs to be forwarded, stored and searchable for a certain time period. This solution categorises data based on different types, which include cold, warm and hot data. These features allow faster and easier extraction of any data even if the event was occurring several years ago. I also like other features, especially user behaviour analysis and automation. If suddenly someone accesses your side or an unusual traffic is recorded from a user the solution flags it very effectively."
"LogRhythm NextGen SIEM is customizable, simple to manage, and there are many features, and the solution does not require an expert to be able to use it, anyone can use it."
"Technical support has always been helpful."
"Overall effectiveness is very good. I like how it is oriented to both analysts and technical support people. It's easily adopted by end users as much as by technologists."
"LogRhythm has absolutely helped improve the security of our organization."
"One of the main features that I like about LogRhythm NextGen SIEM is that there are a lot of pre-built pieces. Like with our AV, we didn't have to tell it how to read the logs; they already had it pre-made. So, we essentially just had to follow their guide to get the logs imported in and set up some rules for it. We've only had to manually create the parsing rules for a few of our vendors so that we could interpret the logs correctly. Most of them had already been pre-created for us."
"We use Security Onion for internal vulnerability assessment."
"Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."
"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."
"Security Onion is the most mature solution in the market."
 

Cons

"We would like to see a better base templates for reporting."
"A cleaner interface. I keep getting confused and forgetting where everything is."
"Granted, we haven't enabled the UEBA module, but we're forwarding all our proxy logs to LogRhythm and we have a really hard time pulling those proxy logs back out of LogRhythm."
"Technical support could use a little work in the terms of responding back. The feedback that we received is they do need a little more staff."
"I work in a highly regulated industry. I know the product has compliance mechanisms, but being able to get more governance surrounding some of the compliance would be helpful."
"The biggest thing I want is, right now you have thick console and the web console. Most of the reporting has to be done in the thick console. I'd love more reporting in the web console."
"We need to get better training for things like creating code and playlists. The way it's done now takes a long time."
"There are other security technologies outside of this SIEM that should be inside of this SIEM."
"The product is not easy to learn."
"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."
"The initial setup of the solution is a little bit difficult."
"Security Onion's user interface could be improved."
 

Pricing and Cost Advice

"Look closely at the cost of licensing of other products. This should include setups and the need for support services. I did a RFQ to 2 other vendors before choosing this product."
"On a scale of one to ten, where one is low, and ten is high, I rate the pricing between six and seven."
"The solution has provided us with consistency and increased staff productivity through orchestrated automated work flows by at least 20 percent."
"The support which allows more customized to the environment when we are deploying new systems is called Professional Service and is very expensive. The technical annual support and there is an annual fee."
"We have seen a measurable decrease in the mean time to detect and respond to threats. As it comes out new features and new releases, the window is becoming a lot narrower because you can pivot a lot more with the data. Therefore, the new features and enhancements are reducing that."
"I would rate the pricing 4 out of 5. There are no additional costs to the standard licensing fees."
"I would rate the tool's pricing around eight out of ten."
"I have seen a measurable decrease in the mean time to detect and respond to threats. We went from not detecting them to detecting them. We can actually pick up what is anomalous in our network now."
"Security Onion is a free solution."
"Security Onion is an open-source solution."
"It is an open-source solution."
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Top Industries

By visitors reading reviews
Construction Company
12%
Outsourcing Company
10%
Financial Services Firm
9%
Comms Service Provider
8%
Comms Service Provider
12%
University
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 is your experience regarding pricing and costs for Security Onion?
Security Onion does not require any cost, as it is open-source and free.
What needs improvement with Security Onion?
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. I assigned a rating of eight out of ten because...
What advice do you have for others considering Security Onion?
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 integrates well with our e...
 

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: September 2026.
913,806 professionals have used our research since 2012.