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Elastic Security vs Security Onion comparison

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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) (11th), Endpoint Detection and Response (EDR) (23rd), Security Orchestration Automation and Response (SOAR) (10th), Extended Detection and Response (XDR) (13th)
Security Onion
Ranking in Log Management
22nd
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
7
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Log Management category, the mindshare of Elastic Security is 3.4%, up from 2.9% compared to the previous year. The mindshare of Security Onion is 1.6%, down from 4.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Elastic Security3.4%
Security Onion1.6%
Other95.0%
Log Management
 

Featured Reviews

Laurentiu Popescu - PeerSpot reviewer
Cyber Security Lead at Orange
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.
MS
Hands-on monitoring has built my threat detection skills and now supports my graduate research
The biggest challenges I have experienced with Security Onion are the learning curve and resource requirements, as it is not necessarily something you can install and immediately understand without networking and Linux knowledge. I actually encountered an HTTP 500 error with the management interface recently, which required troubleshooting and expanding my storage, showing me how important storage planning and system maintenance are when running Security Onion. What I would improve about Security Onion is probably the documentation around troubleshooting common issues, particularly storage management, and making the interface more approachable for new users. Having documentation of what works best would help, especially since you can have nodes or have it all built-in one as a standalone. If you use nodes, you have to have several different Security Onion instances downloaded, then have a manager and connect all of them together.

Quotes from Members

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

Pros

"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."
"Enables monitoring of application performance and the ability to predict behaviors."
"I would say that, on average, a good ROI can be seen within one and a half to two years after deploying Elastic Security."
"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."
"We've found the initial setup to be quite straightforward."
"The solution has a good community surrounding it for lots of helpful documentation for troubleshooting purposes."
"Elastic Security offers advanced features such as machine learning and integration with ChatGPT."
"The stability of the solution is good."
"Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."
"Security Onion is the most mature solution in the market."
"Security Onion brings these tools together in one platform, making it easier to investigate security events and understand what's happening across the network."
"What I appreciate most about Security Onion is that it combines multiple security monitoring tools into one platform."
"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."
"Security Onion has positively impacted my organization by enabling students to analyze logs, understand network traffic, comprehend intrusion detection, and utilize threat hunting and incident response skills in a practical environment, which are best practices we have implemented with the students."
"We use Security Onion for internal vulnerability assessment."
 

Cons

"Elastic Security's maintenance is hard and its scalability is a challenge. There are complications in scaling and upgrading. The solution needs to also provide periodic upgrade checks."
"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."
"I do not have any specific recommendations for improvements in Elastic Security, but I feel that the AI module should get more mature."
"If the documentation were improved and made more clear for beginners, or even professionals, then we would be more attracted to this solution."
"The process of designing dashboards is a little cumbersome in Kibana. Unless you are an expert, you will not be able to use it. The process should be pretty straightforward. The authentication feature is what we are looking for. We would love to have a central authentication system in the open-source edition without the need for a license or an enterprise license. If they can give at least a simple authentication system within a company. In a large organization, authentication is very essential for security because logs can contain a lot of confidential data. Therefore, an authentication feature for who accesses it should be there."
"We'd like to see some more artificial intelligence capabilities."
"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."
"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)."
"The product is not easy to learn."
"Security Onion can be made easier to set up initially, as it is somewhat difficult at the start, but once configured, it becomes a great tool to use."
"One way Security Onion could improve is by making the initial setup and configuration easier, especially for new users."
"The initial setup of the solution is a little bit difficult."
"One of the improvements for Security Onion could be to address the issue of many logs and false positive alerts by reducing the number of false positives, as storage management is very hard sometimes due to a lack of storage space for logs, and they could implement methods to expand storage."
"The biggest challenges I have experienced with Security Onion are the learning curve and resource requirements, as it is not necessarily something you can install and immediately understand without networking and Linux knowledge."
"Security Onion's user interface could be improved."
 

Pricing and Cost Advice

"When compared to other products, the price is average or on the low side."
"Compared to other products such as Dynatrace, this is one of the cheaper options."
"This is an open-source product, so there are no costs."
"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."
"Elastic Security is free to use."
"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."
"The pricing is in the middle. I think it is not an expensive experience if we compare it with big names, for example, QRadar, and also Oxide. I think Elastic Security is quite cheap. I would rate the pricing of this solution a five out of ten."
"We are using the free, open-source version of this solution."
"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
10%
Financial Services Firm
9%
Manufacturing Company
8%
Government
8%
Comms Service Provider
12%
University
11%
Government
10%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise12
Large Enterprise15
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise7
 

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 is your experience regarding pricing and costs for Security Onion?
Security Onion does not require any cost, as it is open-source and free.
What needs improvement with Security Onion?
Security Onion can be made easier to set up initially, as it is somewhat difficult at the start, but once configured, it becomes a great tool to use. I assigned a rating of eight out of ten because...
What advice do you have for others considering Security Onion?
Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization. Security Onion integrates well with our e...
 

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: September 2026.
917,884 professionals have used our research since 2012.