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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
8.4
Reviews Sentiment
7.2
Number of Reviews
8
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.
BL
Network Engineer at Crisp System India Pvt Ltd
Centralized security toolkit has simplified network traffic analysis and customized threat detection
The biggest advantage I found when using Security Onion was that it has a combined set of tools, which is beneficial, as having one place with multiple tools is advantageous. I have used Elastic Stack for data visualization, last using it maybe a couple of months back. Elastic Stack was helpful for my security operations as it is an open-source tool, allowing me to use multiple tools in one place instead of using them all separately. I have also tried Zeek, but I do not use it multiple times. I did not have enough time to understand if Zeek was effective or not, and I did not see much benefit from it. I find the intrusion detection capabilities of Suricata beneficial. With Suricata, we can write different rules for different signatures, which allows for customized use cases. It was helpful to aggregate all the events and traffic in one place with Security Onion, so it is beneficial.

Quotes from Members

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

Pros

"It's open-source and free to use."
"It is an extremely stable solution. Stability-wise, I rate the solution a ten out of ten."
"Elastic SIEM is pretty stable."
"Elastic has a lot of beats, such as Winlogbeat and Filebeat. Beats are the agents that have to be installed on the terminals to send the data. When we install beats or Elastic agents on every terminal, they don't overload the terminals. In other SIEM solutions such as Splunk or QRadar, when beats or agents are installed on endpoints, they are very heavy for the terminals. They consume a lot of power of the terminals, whereas Elastic agents hardly consume any power and don't overload the terminals."
"Elastic Security makes data communication easier."
"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."
"It's a good platform and the very best in the current market. We looked at the Forester report from December 2022 where it was said to be a leader."
"This is definitely a product that I recommend using."
"What I appreciate most about Security Onion is that it combines multiple security monitoring tools into one platform."
"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."
"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."
"Security Onion is reliable and is a good product, having no glitches or latency problems."
"Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."
"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

"We are paying dearly for the guy who is working on the ELK Stack. That knowledge is quite rare and hard to come by. For difficulty and availability of resources, I would rate it a five out of 10."
"Their visuals and graphs need to be better."
"I think maybe on the last exercise part, I think the index rotation can be improved. It's something that they need to work on."
"The solution should generate an automatic product that integrates with ELK Stack to use artificial intelligence."
"The solution's query building is not that intuitive compared to other solutions."
"Technical support could respond faster."
"Installation is a little bit overwhelming, so improvements on the installation site could make it easier."
"The solution needs to be more reactive to investigations. We need to be able to detect and prevent any attacks before it can damage our infrastructure. Currently, this solution doesn't offer that."
"Security Onion also has an enterprise version and support available; sometimes the community version is not capable enough to solve the purpose, so the enterprise edition can help."
"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 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."
"Security Onion's user interface could be improved."
"The product is not easy to learn."
"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."
"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."
 

Pricing and Cost Advice

"I find it better than Splunk in terms of cost-effectiveness. For cost-effectiveness, I would rate it a nine out of 10."
"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."
"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."
"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."
"This is an open-source product, so there are no 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."
"Compared to other products such as Dynatrace, this is one of the cheaper options."
"It's a monthly cost with Elastic SIEM, but I am not sure of the exact cost."
"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
10%
Financial Services Firm
9%
Manufacturing Company
8%
Government
8%
Comms Service Provider
12%
University
11%
Government
10%
Construction Company
7%
 

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 Enterprise8
 

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.
918,614 professionals have used our research since 2012.