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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) (19th), Security Orchestration Automation and Response (SOAR) (11th), Extended Detection and Response (XDR) (13th)
Security Onion
Ranking in Log Management
27th
Average Rating
7.6
Reviews Sentiment
5.5
Number of Reviews
3
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2026, in the Log Management category, the mindshare of Elastic Security is 3.0%, down from 3.5% compared to the previous year. The mindshare of Security Onion is 2.6%, down from 5.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Elastic Security3.0%
Security Onion2.6%
Other94.4%
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.
Jörg Kippe - PeerSpot reviewer
Scientist at a educational organization with 10,001+ employees
A mature and affordable solution that is easy to install and easy to update
The product takes time to learn, it's not that easy. In the beginning we had a lot of questions. If you want to use such a tool in an real (industrial) environment, you have to ask how to get the network data. Can we do a full packet capture? Can we provide agents to our end systems? There are no simple solutions to these questions. It's a general problem when running such systems in an industrial environment.

Quotes from Members

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

Pros

"Elastic is straightforward, easy to integrate, and highly customizable."
"The most valuable feature is the speed, as it responds in a very short time."
"ELK Logstash is easy and fast, at least for the initial setup with the out of box uses."
"You just deploy and start using, and it's quite stable and hasn't broken down on us at all."
"I use the stack every morning to check the errors and it's just so clear. I don't see any disadvantage to using Logstash."
"It's simple and easy to use."
"In terms of query resolution, error searching finding and production issues, we're able to find issues quicker."
"The product has huge integration varieties available."
"Security Onion is the most mature solution in the market."
"We use Security Onion for internal vulnerability assessment."
"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."
 

Cons

"Their visuals and graphs need to be better."
"We had issues with scalability. Logstash was not scaling and aggregation was getting delayed."
"This solution cannot do predictive maintenance, so we have to build our own modules for doing it."
"The documentation for this solution is very important, and more needs to be developed."
"In terms of what could be improved with Elastic, in some use cases, especially on the advanced level, they are not ready-made, so you'll have to write some scripts."
"Technical support could respond faster."
"This solution is very hard to implement."
"There should be a simulation environment to check whether my Elastic implementation is functioning perfectly fine. Other solutions have their own Android and iOS applications that I can install on my mobile so that I am continuously connected to the SIEM."
"The initial setup of the solution is a little bit difficult."
"Security Onion's user interface could be improved."
"The product is not easy to learn."
 

Pricing and Cost Advice

"Compared to other products such as Dynatrace, this is one of the cheaper options."
"When compared to other products, the price is average or on the low side."
"The price is reasonable. It probably costs the same as ArcSight and LogRhythm SIEM. FortiSIEM might cost less than Elastic Security. There are no hidden or additional costs."
"We use the open-source version, so there is no charge for this solution."
"The solution is not expensive and costs around ten dollars a month."
"Compared to other tools, Elastic Security is a cheaper solution."
"The base product is open-source but if you need advanced security features then you need to pay for the subscription. Elastic Security's price is reasonable in some cases and in other cases it's not."
"I find it better than Splunk in terms of cost-effectiveness. For cost-effectiveness, I would rate it a nine out of 10."
"Security Onion is an open-source solution."
"Security Onion is a free solution."
"It is an open-source solution."
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Top Industries

By visitors reading reviews
Comms Service Provider
9%
Computer Software Company
9%
Government
9%
Financial Services Firm
8%
University
12%
Government
11%
Comms Service Provider
10%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise11
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 do you like most about Elastic Security?
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 ...
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.
Ask a question
Earn 20 points
 

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: April 2026.
886,976 professionals have used our research since 2012.