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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
13th
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) (19th), Security Orchestration Automation and Response (SOAR) (11th), Extended Detection and Response (XDR) (12th)
Security Onion
Ranking in Log Management
29th
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 June 2026, in the Log Management category, the mindshare of Elastic Security is 3.3%, up from 3.1% compared to the previous year. The mindshare of Security Onion is 2.0%, down from 5.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Elastic Security3.3%
Security Onion2.0%
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

"It is scalable."
"ELK is open-source, and it will give you the framework you need to build everything from scratch."
"It is very quick to react. I can set it to check anomalies or suspicious behavior every 30 seconds. It is very fast."
"Elastic provides the capability to index quickly due to the reverse indexes it offers. This data is crucial as it contains critical information. The reverse index allows fast data indexing because of Elastic's efficient search engine."
"The most valuable feature for me is Discover."
"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 solution has a good community surrounding it for lots of helpful documentation for troubleshooting purposes."
"The most valuable features are the speed, detail, and visualization. It has the latest standards."
"Security Onion is the most mature solution in the market."
"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."
"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."
 

Cons

"With Elastic, you have to build the use cases for the specific requirement. Other products have a simple integration and more use cases to integrate out-of-the-box solutions for SIEM."
"Because of the notification issue we moved to Logentries, as it provides a simple way to get notification whenever a server encounters an error or something unexpected happens (which we have defined using Regex)."
"I'm not satisfied with technical support because whenever you raise a case, it goes to some random support person who asks questions about the architecture."
"The process of designing dashboards is a little cumbersome in Kibana."
"Its documentation should be a bit better. I have to spend at least a couple of hours to find the solution for a simple thing. When we buy Elastic, training is not included for free with Elastic. We have to pay extra for the training. They should include training in the price."
"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."
"We're using the open-source edition, for now, I think maybe they can allow their OLED plugin to be open source, as at the moment it is commercialised."
"Better integration with third-party APMs would be really good."
"Security Onion's user interface could be improved."
"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 product is not easy to learn."
"The initial setup of the solution is a little bit difficult."
 

Pricing and Cost Advice

"Compared to other tools, Elastic Security is a cheaper solution."
"Affordable but with additional costs"
"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 Stack is an open-source tool. You don't have to pay anything for the components."
"It's a monthly cost with Elastic SIEM, but I am not sure of the exact cost."
"The solution is free."
"We use the open-source version, so there is no charge for this solution."
"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
Comms Service Provider
9%
Financial Services Firm
8%
Government
8%
Computer Software 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 ...
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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.
900,277 professionals have used our research since 2012.