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NetWitness Platform vs Security Onion comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 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

NetWitness Platform
Ranking in Log Management
36th
Average Rating
7.4
Reviews Sentiment
7.4
Number of Reviews
36
Ranking in other categories
Security Information and Event Management (SIEM) (34th)
Security Onion
Ranking in Log Management
11th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
9
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Log Management category, the mindshare of NetWitness Platform is 1.2%, up from 0.4% compared to the previous year. The mindshare of Security Onion is 1.5%, down from 4.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Security Onion1.5%
NetWitness Platform1.2%
Other97.3%
Log Management
 

Featured Reviews

reviewer1130436 - PeerSpot reviewer
Information Technology Security and Infrastructure Expert at a government with 201-500 employees
Helps to deal with potential attacks and is available at a reasonable price
My company has had many benefits from the use of the product in the last eight years. The tool has streamlined our company's incident response process since it serves as a log repository, which allows us to correlate events and access different technology stacks. In our company, we were able to actually find some potential attacks, so it has been very helpful. The tool's integration capability isn't so great. In my company, we managed to integrate it with our Microsoft Azure Subscription, after which we managed to integrate it with other tools. You will face a lot of difficulties if you want to integrate it with your database monitoring tool, PAM solutions, or IAM products. The product has done well overall for my company's teams to deal with their workflow efficiency. I would not recommend the product to others. I rate the tool a seven out of ten.
CO
Security Operation Center Analyst at a university with 1,001-5,000 employees
Improved threat detection and incident response has revealed training and usability gaps
What I would like to add is that if the interface or if there is less to work on technical knowledge. For example, people with no technical knowledge cannot use this, so they need to have at least a deep or substantial level of technical knowledge to be able to use these tools. If there is a way there can be an optimization to accommodate those with no technical knowledge in the process using tools compared to tools such as Sentinel and Splunk, which also doesn't require much technical knowledge to be able to use. That would also help. I think Security Onion could be improved by making the user interface more intuitive for new users and simplifying the initial setup and configuration process. Security Onion needs to be simplified so that those with less technical knowledge can be able to come in and use it. Guidance on prioritizing alerts will also be helpful, especially in an environment where security analysts deal with a high volume of security events. I also would like to mention that it needs to be more straightforward integration with other security tools. There needs to be a handshake between Security Onion and other same tools to help in endpoint detection and protection against threats. Another improvement that could also enhance is the reporting and visualization of the key metrics such as detection time, the incident, the overall interface of the analysis, and the false rate, which will also give Security Onion a better view for security analysts to be able to use and understand it. I would like to see the interface to be more simplified. I also would like to see the visualization to be more improved. I also would like to see the support features to be something that junior analysts or those coming in to start up their careers can be able to use without needing deep technical knowledge.

Quotes from Members

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

Pros

"Overall, this is a good solution with suitable features and it very well fits our needs."
"Performance and reporting are very good."
"Technical support is very good; they try to resolve issues with the proper SLAs which are defined by them and they understand the client's requirements as well as the client's infrastructure in a better manner."
"I can have enterprise security, email security, next generation firewall security log, HIDS and NIDS logs, etc. all on the same dashboard. It makes it easy to pinpoint or correlate our server to this. I can find out if there is lateral movement. This is the biggest advantage of this solution."
"It's quite economical compared to other solutions in the market."
"What we are mainly using are the RSA concentrator, RSA Decoder, Archiver, Broker, and Log Decoder."
"Since the solution has been under way we have seen a large decrease of threats and proactive reactions to incidents."
"Technically speaking, this is a good product."
"Security Onion is the most mature solution in the market."
"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 reliable and is a good product, having no glitches or latency problems."
"Security Onion brings these tools together in one platform, making it easier to investigate security events and understand what's happening across the network."
"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."
"We use Security Onion for internal vulnerability assessment."
"Tools such as Suricata and Zeek help identify suspicious network activity and provide detailed information for investigating and analyzing the potential threat which is coming to any organization."
"Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."
 

Cons

"We have encountered issues with unresolved crashes."
"Sometimes, it gives me static when integrating Windows-based systems. It should produce a precise log of sorts as to where the problem is. For example, a few days ago because of the McAfee application firewall, I couldn't get access to the particular Windows machine. So, my team and I had to figure out by ourselves that there was a virus responsible for the obstacle. This solution should trigger a meaningful log or message indicating the reason the user or implementer can't get into the machine."
"The product continues to crash. Even with tech support help, it does not resolve itself."
"The log system is a bit complex and has room for improvement."
"Its technical support could be better."
"The documentation is not as structured as I would like, personally, and I think that it can be improved and made much more user-friendly."
"The system architecture is complex and sometimes it’s hard to troubleshoot potential problems."
"They should implement algorithms to digest that data and produce additional, more advanced reporting, alerting and support of internal security teams."
"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."
"What I would like to add is that if the interface or if there is less to work on technical knowledge."
"The product is not easy to learn."
"One way Security Onion could improve is by making the initial setup and configuration easier, especially for new users."
"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."
"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 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."
 

Pricing and Cost Advice

"We have yearly licensing costs. The license fee can be based on the volume of EPS. Some organizations may have, as a gentlemanly gesture, 10,000 EPS and get a 3,000 EPS license but actually use 5,000 EPS."
"We are on an annual license for the use of the solution."
"The product is expensive."
"The NetWitness Platform may be affordable only for enterprise-level customers, as it may not be within the budget of small and medium-sized businesses."
"In comparison to other SIEM solutions such as Splunk, NetWitness is less costly."
"Many clients are not able to purchase the packet capability because there is a huge amount of data, and the cost depends on the number of EPS (Events per second), as well as the number of gigabytes of data per day."
"RSA NetWitness Logs and Packets do not have a subscription model, it's a one-time purchase. There is only a perpetual license."
"The product price was reasonable for my region and the market."
"Security Onion is a free solution."
"Security Onion is an open-source solution."
"It is an open-source solution."
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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Construction Company
12%
Financial Services Firm
11%
Comms Service Provider
11%
Outsourcing Company
10%
Comms Service Provider
13%
University
11%
Government
10%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise7
Large Enterprise20
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise8
 

Questions from the Community

What is your experience regarding pricing and costs for NetWitness Platform?
The pricing is comparable to others, and I consider the cost to be intermediate. Specific cost details are unknown to me.
What needs improvement with NetWitness Platform?
There is currently no need for improvement in the SIEM ( /categories/security-information-and-event-management-siem ), though there could be potential enhancements by integrating with AI.
What is your primary use case for NetWitness Platform?
I use NetWitness Platform ( /products/netwitness-platform-reviews ) in the financial industry as a good product with excellent capabilities and integration with various devices.
What is your experience regarding pricing and costs for Security Onion?
I have not had a problem with pricing, setup cost, and licensing because my experience with Security Onion's pricing has been positive. Security Onion is open-source, so I was able to use its core ...
What needs improvement with Security Onion?
One way Security Onion could improve is by making the initial setup and configuration easier, especially for new users. When I first started working with it, I experienced challenges configuring ne...
What advice do you have for others considering Security Onion?
I would give Security Onion a rating of 10 out of 10. I have used other platforms, and I can tell that Security Onion provides powerful security monitoring and investigation tools in one platform, ...
 

Also Known As

RSA Security Analytics
No data available
 

Overview

 

Sample Customers

Los Angeles World Airports, Reply
Information Not Available
Find out what your peers are saying about NetWitness Platform vs. Security Onion and other solutions. Updated: November 2026.
920,939 professionals have used our research since 2012.