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NetWitness Platform vs Security Onion comparison

 

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
37th
Average Rating
7.4
Reviews Sentiment
7.4
Number of Reviews
36
Ranking in other categories
Security Information and Event Management (SIEM) (37th)
Security Onion
Ranking in Log Management
29th
Average Rating
7.2
Reviews Sentiment
7.1
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Log Management category, the mindshare of NetWitness Platform is 1.1%, up from 0.3% compared to the previous year. The mindshare of Security Onion is 2.0%, down from 5.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Security Onion2.0%
NetWitness Platform1.1%
Other96.9%
Log Management
 

Featured Reviews

reviewer2256927 - PeerSpot reviewer
Head of Information Security, Cyber Defense and IT Risk Management at HCT. at a transportation company with 201-500 employees
A solid SIEM solution that should improve technical support and online resources to be easier to use
A big problem with the product is that we don't have much professional experience in Israel installing, implementing, and integrating this product. There is not enough of a knowledge base. There is no support for this product in this country, so problems have to be resolved through global technical teams. We like to work locally because of the language, and when the product is only supported outside the country, it's a little difficult to implement and use this product. Moreover, AI is something that must be added immediately. Artificial intelligence is a part of the competitors' products, and it's not been implemented for us.
HJ
Manager at teshama
Centralized threat monitoring has improved visibility but demands complex setup and configuration
The best features Security Onion offers include acting as the intrusion detection system in my organization and helping me to address traffic, logs, and events happening within the organization. Since Security Onion is an open-source system that integrates with tools like Suricata and Zeek with the ELK stack, it enables threat detection and response capabilities, delivering high-level security measures at a cost, making it suitable for businesses of varying skill levels. These integrations with Suricata and Zeek have greatly impacted our workflow and our team's effectiveness by helping us address issues such as identifying intrusions, evaluating threats, and overseeing log files. This tool is very cost-effective, making it suitable for any size of organization wanting to use it.

Quotes from Members

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

Pros

"NetWitness can be highly beneficial for incident detection and response."
"Possibility to investigate incidents based on logs and raw packets, such as extracting files sent over the network"
"What we are mainly using are the RSA concentrator, RSA Decoder, Archiver, Broker, and Log Decoder."
"The most valuable features are the integration and ease of use."
"The most valuable features are the packet decoder, log decoder, and concentrator."
"The detection of ransomware in the internal network has benefited my organization."
"The solution is really scalable for the high-end power, enterprise customer."
"The newer 11.5 version that my team is using has found it to have good mapping."
"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."
"Security Onion has positively impacted my organization by greatly improving our security posture, making alert triage easier to handle, simplifying the analysis of threats, and decreasing the cost of threat analysis and detection."
"Security Onion is the most mature solution in the market."
 

Cons

"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 initial setup is very complex and should be simplified."
"One thing to be improved in NetWitness is the capability to correlate event logs in a general sense."
"The product's licensing models are complex to understand. This particular area needs improvement."
"More customizability is required, which is something that they need to improve on."
"An area for improvement would be better automation and more inbuilt use cases."
"The initial setup was complex because it takes a lot of time to complete the implementation."
"The threat detection capability and centralizing and upgrading capability need to be improved. The threat alert capability needs to be improved as well because there is some lag time at present. They need to work on their database search too."
"Security Onion's user interface could be improved."
"The product is not easy to learn."
"The initial setup of the solution is a little bit difficult."
"For Security Onion, setting up and configuring the system can be quite challenging for newcomers due to the need for a grasp of networking and security concepts."
 

Pricing and Cost Advice

"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."
"The tool is very expensive, so I rate the pricing a ten out of ten. The solution has an annual subscription."
"It’s cheaper to run virtual machines in a VMware environment."
"In comparison to other SIEM solutions such as Splunk, NetWitness is less costly."
"Compared to the competition, the is price is not that high."
"Our license is for one year."
"It is cheap."
"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."
"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
Financial Services Firm
12%
Construction Company
11%
Comms Service Provider
9%
Outsourcing Company
8%
University
12%
Comms Service Provider
11%
Government
10%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise7
Large Enterprise20
No data available
 

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.
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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: June 2026.
900,747 professionals have used our research since 2012.