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Elastic Security 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

Elastic Security
Ranking in Log Management
13th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
66
Ranking in other categories
Security Information and Event Management (SIEM) (12th), Endpoint Detection and Response (EDR) (23rd), Security Orchestration Automation and Response (SOAR) (12th), Extended Detection and Response (XDR) (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 Elastic Security is 3.5%, up from 2.9% 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 (%)
Elastic Security3.5%
Security Onion1.7%
Other94.8%
Log Management
 

Featured Reviews

Laurentiu Popescu - PeerSpot reviewer
Chief Product Officer at ClusterPower
Has improved threat detection with deep log analysis and streamlined investigation workflows
The most useful features I find in Elastic Security are the forensic ones that allow us to carry deeper analysis into the logs for in-depth investigations, and the dashboards, with the reporting dashboard being quite user-friendly. Elastic Security is quite good at identifying threats, as it is part of the deep investigation tool that I mentioned before. Unless we need to look further into a certain log, we can carry out a deeper analysis and forensics on those particular logs. I can assess the impact of Elastic Security's real-time data analysis on our threat response efficiency as working pretty good. We are looking for real-time analysis because we have a continuous inflow of logs from different sources: from our cloud, from Active Directory, from our network. So it works pretty well.
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

"It's very stable and reliable."
"It is scalable."
"The solution is compatible with the cloud-native environment and they can adapt to it faster."
"I think that it's a good solution for a SIEM."
"The performance is good and it is faster than IBM QRadar."
"The stability of the solution is good."
"The indexes allow you to get your results quickly. The filtering and log passing is the advantage of Logstash."
"The intelligence of the system has been very impressive; it's pretty accurate and gives you good details to create an intelligence report and present that to your C-level management."
"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."
"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."
 

Cons

"They don't provide user authentication and authorisation features (Shield) as a part of their open-source version."
"The solution does not have a UI and this is one of the reasons we are looking for another solution."
"Configuring the server is difficult and can be improved."
"Anything that supports high availability or ease of deployment in a highly available environment would help to improve this solution."
"It would be better if Elastic Security had less storage for data. My customers do not like this. Other vendors have local support in different countries, but Elastic Security doesn't. I would like to have Operational Technology (OT) security in the next release."
"We find that solutions such as Dynatrace and Datadog offer much more functionality, perhaps due to the fact that they are more mature."
"The solution's query building is not that intuitive compared to other solutions."
"One thing they could add is a quick step to enable users who don't have a solid background to build a dashboard and quickly search, without difficulty."
"Security Onion's user interface could be improved."
"The initial setup of the solution is a little bit difficult."
"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 product is not easy to learn."
 

Pricing and Cost Advice

"It is easy to deploy, easy to use, and you get everything you need to become operational with it, and have nothing further to pay unless you want the OLED plugin."
"Affordable but with additional costs"
"When compared to other products, the price is average or on the low side."
"We use the open-source version, so there is no charge for this solution."
"This is an open-source product, so there are no costs."
"We are using the free, open-source version of this solution."
"Compared to other products such as Dynatrace, this is one of the cheaper options."
"The solution is free."
"Security Onion is a free solution."
"It is an open-source solution."
"Security Onion is an open-source solution."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise12
Large Enterprise15
No data available
 

Questions from the Community

Datadog vs ELK: which one is good in terms of performance, cost and efficiency?
With Datadog, we have near-live visibility across our entire platform. We have seen APM metrics impacted several times lately using the dashboards we have created with Datadog; they are very good c...
What is your experience regarding pricing and costs for Elastic Security?
I am satisfied with the pricing, setup cost, and licensing cost. It is a pure 10.
What needs improvement with Elastic Security?
I do not have any specific recommendations for improvements in Elastic Security, but I feel that the AI module should get more mature. These machine learning algorithms become better with time; as ...
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

Elastic SIEM, ELK Logstash
No data available
 

Overview

 

Sample Customers

Texas A&M, U.S. Air Force, NuScale Power, Martin's Point Health Care
Information Not Available
Find out what your peers are saying about Elastic Security vs. Security Onion and other solutions. Updated: September 2026.
913,076 professionals have used our research since 2012.