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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
9th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
66
Ranking in other categories
Security Information and Event Management (SIEM) (5th), Endpoint Detection and Response (EDR) (14th), Security Orchestration Automation and Response (SOAR) (5th), Extended Detection and Response (XDR) (8th)
Security Onion
Ranking in Log Management
22nd
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 February 2026, in the Log Management category, the mindshare of Elastic Security is 2.9%, down from 3.9% compared to the previous year. The mindshare of Security Onion is 3.4%, down from 5.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Elastic Security2.9%
Security Onion3.4%
Other93.7%
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.
Anish Bajracharya - PeerSpot reviewer
Postgraduate at a educational organization with 1,001-5,000 employees
Provides good threat hunting by finding infected ports, but its initial setup is difficult
The most valuable feature of Security Onion for security monitoring is its ability to find infected ports. I have used the Squert tool within Security Onion the most for threat hunting The initial setup of the solution is a little bit difficult. I have been using Security Onion for one year.…

Quotes from Members

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

Pros

"Just the ability to do a lot more than just up-down is nice, which a lot of people take for granted."
"The solution is compatible with the cloud-native environment and they can adapt to it faster."
"ELK is open-source, and it will give you the framework you need to build everything from scratch."
"The intelligence of the system has been very impressive. It's not quite AI, but the technical bit where it correlates information, based on the seen attacks within an organization is good."
"Elastic Security is cost-effective compared to Defender and CrowdStrike."
"The most valuable features of Elastic Security are it is open-source and provides a high level of security."
"The solution's most valuable features are anomaly detection and connectivity reporting."
"It's not very complicated to install Elastic."
"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

"Technical support could respond faster."
"We'd like to see some more artificial intelligence capabilities."
"The solution should generate an automatic product that integrates with ELK Stack to use artificial intelligence."
"If you compare this with CrowdStrike or Carbon Black, they can improve."
"Elastic Security can be a bit difficult to use if a person only has experience in SMBs with tools like Zoho. The product can also be difficult for those who have never dealt with query language."
"Upgrades currently released as stacks when it should be a plugin or an extension to save removal and reinstallation."
"It could use maybe a little more on the Linux side."
"The interface could be more user friendly because it is sometimes hard to deal with."
"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."
 

Pricing and Cost Advice

"The product offers an amazing pricing structure. Price-wise, the product is very competitive."
"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."
"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."
"This is an open-source product, so there are no costs."
"Affordable but with additional costs"
"Elastic Security is free to use."
"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."
"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
Computer Software Company
11%
Government
10%
Comms Service Provider
8%
Manufacturing Company
7%
University
12%
Government
11%
Comms Service Provider
10%
Computer Software Company
8%
 

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.
What do you like most about Security Onion?
The most valuable feature of Security Onion for security monitoring is its ability to find infected ports.
What is your experience regarding pricing and costs for Security Onion?
Security Onion is an open-source solution. On a scale from one to ten, where ten is expensive and one is cheap, I rate the solution's pricing a six out of ten.
What needs improvement with Security Onion?
The initial setup of the solution is a little bit difficult.
 

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: February 2026.
882,813 professionals have used our research since 2012.