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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
65
Ranking in other categories
Security Information and Event Management (SIEM) (5th), Endpoint Detection and Response (EDR) (17th), Security Orchestration Automation and Response (SOAR) (8th), Extended Detection and Response (XDR) (10th)
Security Onion
Ranking in Log Management
21st
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 August 2025, in the Log Management category, the mindshare of Elastic Security is 2.9%, down from 5.7% compared to the previous year. The mindshare of Security Onion is 4.9%, up from 4.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management
 

Featured Reviews

SyedAli17 - PeerSpot reviewer
Centralized monitoring improves security posture through rapid data processing
The processing part of Elastic Security ( /products/elastic-security-reviews ) is very interesting for us since we handle almost 7,000 to 8,000 alerts per minute. We require rapid processing speed for alerts and event data, and Elastic Security is very efficient at handling this level of data. Additionally, Elastic Security helps improve the security posture of Pakistan through centralized visibility and real-time processing.
Jörg Kippe - PeerSpot reviewer
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

"It is the best open-source product for people working in SO, managing and analyzing logs."
"The solution is compatible with the cloud-native environment and they can adapt to it faster."
"Elastic Security is a highly flexible platform that can be implemented anywhere."
"The solution is quite stable. The performance has been good."
"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."
"The most valuable feature for me is Discover."
"The product has huge integration varieties available."
"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."
"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."
"Security Onion is the most mature solution in the market."
 

Cons

"An area for improvement in Elastic Security is the pricing. It could be better. Right now, when you increase the volume of logs to be collected, the price also increases a lot."
"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."
"In terms of improvement, there could be more automation in responding to and evaluating detections."
"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."
"Continuous upgrades can be quite inconvenient. My security testing team continuously reports vulnerabilities, and we have to fix and update the versions frequently."
"This solution cannot do predictive maintenance, so we have to build our own modules for doing it."
"The tool should improve its scalability."
"Technical support could respond faster."
"The product is not easy to learn."
"Security Onion's user interface could be improved."
"The initial setup of the solution is a little bit difficult."
 

Pricing and Cost Advice

"The tool's pricing is flexible and comes at unit cost. You don't have to pay for everything."
"It's a monthly cost with Elastic SIEM, but I am not sure of the exact cost."
"I can say that the product is cheaply priced."
"The solution is not expensive and costs around ten dollars a month."
"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 solution is free."
"This is an open-source product, so there are no costs."
"Its price is fine. Its licensing works on a yearly basis. We have to renew the license every year. I also have a good experience with Darktrace. When we buy Darktrace, we get training free of cost, which is not there in Elastic. We have to pay extra for training. There is certainly room for improvement."
"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
16%
Government
10%
Comms Service Provider
8%
Financial Services Firm
7%
Computer Software Company
11%
University
11%
Comms Service Provider
10%
Government
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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: July 2025.
864,155 professionals have used our research since 2012.