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Elastic Security 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

Elastic Security
Ranking in Log Management
11th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
66
Ranking in other categories
Security Information and Event Management (SIEM) (7th), Endpoint Detection and Response (EDR) (15th), Security Orchestration Automation and Response (SOAR) (10th), Extended Detection and Response (XDR) (12th)
Security Onion
Ranking in Log Management
25th
Average Rating
7.2
Reviews Sentiment
7.1
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2026, in the Log Management category, the mindshare of Elastic Security is 3.4%, up from 3.0% compared to the previous year. The mindshare of Security Onion is 1.9%, down from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Elastic Security3.4%
Security Onion1.9%
Other94.7%
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.
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

"Elastic Security is applied within my cyber defense strategy by utilizing many modules such as EDR, GenAI, SOAR module and combines with the SIEM module."
"ELK is open-source, and it will give you the framework you need to build everything from scratch."
"The most valuable thing is that this solution is widely used for work management and research. It's easy to jump into the security use case with the same technology."
"We like the detailed investigation features of the platform as you're able to get a lot of detail as to what's going on on the host when you do investigations."
"The product in general has come very far and it's gotten a lot better over the years."
"You just deploy and start using, and it's quite stable and hasn't broken down on us at all."
"This solution helps us because we can find all of the logs in one place."
"The solution is quite stable. The performance has been good."
"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."
"We use Security Onion for internal vulnerability assessment."
"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

"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."
"The documentation for this solution is very important, and more needs to be developed."
"I do not have any specific recommendations for improvements in Elastic Security, but I feel that the AI module should get more mature."
"Technical support could respond faster."
"The Integration module could be improved. It is a pain to build integration with any product."
"If you compare this with CrowdStrike or Carbon Black, they can improve."
"Authentication is not a default in Kibana. We need to have another tool to have authentication and authorization. These two should be part of Kibana."
"One limitation of Elastic Security is that it does not have built-in workflows for all tasks. For example, if you need a workflow for compliance, you will need to create a custom workflow."
"Security Onion's user interface could be improved."
"The product is not easy to learn."
"The initial setup of the solution is a little bit difficult."
"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."
 

Pricing and Cost Advice

"Compared to other tools, Elastic Security is a cheaper solution."
"I can say that the product is cheaply priced."
"When compared to other products, the price is average or on the low side."
"We are using the free, open-source version of this solution."
"Elastic Security is free to use."
"The solution is free."
"The licensing cost of Elastic Security is based on the daily ingestion rate. I can't recall the exact figure, but for 10GB of log action daily, it would cost around $20,000."
"There is no charge for using the open-source version."
"It is an open-source solution."
"Security Onion is a free solution."
"Security Onion is an open-source solution."
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Top Industries

By visitors reading reviews
Comms Service Provider
9%
Financial Services Firm
8%
Government
8%
Manufacturing Company
8%
University
12%
Comms Service Provider
11%
Government
10%
Computer Software 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 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

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: June 2026.
904,899 professionals have used our research since 2012.