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CrowdStrike Observability [EOL] vs Security Onion comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Aug 26, 2026

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

CrowdStrike Observability [...
Average Rating
8.0
Reviews Sentiment
4.9
Number of Reviews
8
Ranking in other categories
No ranking in other categories
Security Onion
Average Rating
7.8
Reviews Sentiment
7.0
Number of Reviews
6
Ranking in other categories
Log Management (22nd)
 

Featured Reviews

HectorRios - PeerSpot reviewer
IT COMMUNICATIONS AND NETWORKS at Américas BPS
Has provided reliable alerts and helped identify infrastructure issues through detailed reporting
The best features of CrowdStrike Observability include the way they show issues to the client or agent, and their data collection method is interesting because they use an agent-less approach in some cases, collecting data from infrastructure such as firewalls. Additionally, they have the agent, but the presentation in the management console is excellent as we have observability end-to-end with the servers and all the services configured in the use cases. The intelligent alerting feature is excellent and configured on our console, being highly effective as it detects real alerts and just warnings or real issues. Identifying performance bottlenecks is important because they collect numerous MD5 or hash keys including movements or playbooks. The way they organize that in the console is excellent, allowing you to have reports detecting issues, which not only includes detection but also provides solutions to those issues.
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

"The price is worth it."
"The log aggregation and correlation of data are notable features that enhance our operations."
"The intelligent alerting feature is excellent and configured on our console, being highly effective as it detects real alerts and just warnings or real issues."
"In the logs and the trajectory, it shows detailed information about where the source of infection comes from, how it travels, and how to reach there."
"The dashboard and user interface of CrowdStrike Observability are quite good, and the support is responsive."
"I find the most effective feature of CrowdStrike Observability to be its cloud vision and attack surface vision, which enhance network traffic analysis."
"CrowdStrike Observability is a signature-less solution where you don't need to update your endpoints or the CrowdStrike Observability agents regularly, and it is completely based on AI and ML search engines."
"CrowdStrike Observability offers strong predictive analytics capabilities, and the intelligent alerting system helps minimize noise and optimize IT resources effectively."
"Security Onion is the most mature solution in the market."
"We use Security Onion for internal vulnerability assessment."
"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 a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."
"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."
 

Cons

"The customer service is not satisfactory for me. The support is only available in English, and my users in LATAM regions such as Peru and Colombia require local language support, which is not currently provided."
"From the different deployments I have worked with, the shortcomings of CrowdStrike Observability are often because of what clients are able to share with CrowdStrike."
"Technical support received a rating of 4 out of 10."
"The areas of CrowdStrike Observability that have room for improvement include the approach towards customer issues, where resolution takes time."
"For reporting or log management, having a longer duration for backup without needing to purchase a paid subscription would be beneficial. Currently, there is a default ninety-day backup period."
"Integration with Huawei should be more straightforward."
"We had some difficulties at the beginning, but at this moment they are improving, so probably in some months I will give them a ten."
"The pricing is very high and small companies cannot afford it. They should reduce the price because the backend infrastructure is the same."
"The product is not easy to learn."
"Security Onion's user interface could be improved."
"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 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."
"The initial setup of the solution is a little bit difficult."
"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."
 

Pricing and Cost Advice

Information not available
"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
Computer Software Company
15%
Construction Company
12%
Financial Services Firm
12%
Comms Service Provider
9%
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 Business3
Midsize Enterprise3
Large Enterprise3
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise5
 

Questions from the Community

What needs improvement with CrowdStrike Observability?
From the different deployments I have worked with, the shortcomings of CrowdStrike Observability are often because of what clients are able to share with CrowdStrike. If there are limitations in wh...
What is your primary use case for CrowdStrike Observability?
We are currently using a complete suite of anti-malware software and other security products in our company. I have worked with both the on-premises version and the cloud version, but I am more fam...
What advice do you have for others considering CrowdStrike Observability?
I am probably familiar with CrowdStrike Observability. I first heard of CrowdStrike Observability a couple of years ago, and I only really started looking into it about a year ago. I cannot comment...
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...
 

Overview

Find out what your peers are saying about Splunk, Wazuh, Cribl and others in Log Management. Updated: October 2026.
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