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Security Onion vs USM Anywhere comparison

 

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

Security Onion
Ranking in Log Management
24th
Average Rating
7.8
Reviews Sentiment
7.2
Number of Reviews
4
Ranking in other categories
No ranking in other categories
USM Anywhere
Ranking in Log Management
31st
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
115
Ranking in other categories
Security Information and Event Management (SIEM) (29th), Endpoint Detection and Response (EDR) (39th), Compliance Management (14th)
 

Mindshare comparison

As of August 2026, in the Log Management category, the mindshare of Security Onion is 1.8%, down from 4.8% compared to the previous year. The mindshare of USM Anywhere is 1.3%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Security Onion1.8%
USM Anywhere1.3%
Other96.9%
Log Management
 

Featured Reviews

Hiten Nandasana - PeerSpot reviewer
Angular Developer at Flourish Software
Centralized monitoring has strengthened threat detection and supports faster incident investigations
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 existing tools, primarily using Linux systems in our organization, allowing us to monitor logs and manage threat detection and operations in the public cloud effectively. Security Onion is very helpful in meeting compliance requirements and supports regular standards for our environment. I advise organizations that use Linux or have network security knowledge to consider Security Onion, as it satisfies requirements such as threat detection and log management systems. I would rate this review eight out of ten.
Kris Nawani - PeerSpot reviewer
Co-Founder/Director at Bangkok MSP Company Limited
Offers complete coverage without the need to install additional software
USM Anywhere is used for threat detection and investigation. It provides a solution with built-in threat intelligence and various other investigation tools The solution offers complete coverage without the need to install additional software, as it is maintained by the vendor. It helps in saving…

Quotes from Members

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

Pros

"Security Onion is the most mature solution in the market."
"We use Security Onion for internal vulnerability assessment."
"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."
"AlienVault USM Anywhere is easy to deploy with their cloud-based model, and deploying the required agents on-prem (or in the cloud) is quick and easy."
"The USM has been instrumental in the discovery and tracking down of emerging threats which has helped us instantly evaluate and resolve security incidents for our clients."
"Customer Service: The customer service is excellent, we have quick and knowledgeable help on all our calls."
"I highly recommend AlienVault USM for anybody that is seeking a SIEM solution that is easy to implement and easy to manage."
"The all-in-one source for the needs of compliance has put everything into one location without the need of other applications and tools to accomplish the tasks."
"The pricing for this solution with the 3 major components: SIEM, FIM, and vulnerability scanning, can’t be beat."
"It's a single solution that is meeting the needs of multiple of my PCI compliance objectives."
"Asset discovery and vulnerability scanner are good features. The integration between this solution and OTX, which is an AlienVault platform for Open Threat Exchange, is also a valuable feature. It is also quick and easy to deploy, so you can quickly engage with a customer's environment."
 

Cons

"The initial setup of the solution is a little bit difficult."
"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 product is not easy to learn."
"Security Onion's user interface could be improved."
"The only recommended changes I can think of is to have the ability to filter logs."
"Search performance can be slow. The Raw Logs feature is painfully slow. And if we're talking about the newer, the Anywhere product, you can't even schedule reports on the thing. There are probably a dozen other features I'd really like to see there, but that would be one of the biggies."
"AlienVault must improve their correlation feature. Some of the events do not match with the correlation rules and some of the correlation events are false-positive."
"There are scalability issues due to a 60 TB limit, which restricts its use for large customers like banks."
"The reporting module could be a little easier to handle, as it requires quite some trial and error until you get the reports you want. Also, it would be great to have a graphical interface for the Network Intrusion Detection System's rule management."
"It needs to be easier to deploy switch monitoring."
"Creating directives is a pain on its own, but editing them can be a nightmare filled with tedious unnecessary steps."
"Their threat intelligence platform needs to be broadened. They should integrate it with more threat intelligence platforms. For the threat feed that they get from open intelligence, I would like them to add a few premium threat intelligence platforms. They can provide a bundle in which AlienVault has the threat intelligence background of other premium products."
 

Pricing and Cost Advice

"It is an open-source solution."
"Security Onion is an open-source solution."
"Security Onion is a free solution."
"​The price point is good.​"
"They are a little more expensive than Microsoft."
"​The vulnerability management solution is worse than buying a Nessus Professional license.​"
"Pricing is very competitive with other products and you get much more functionality from AlienVault."
"They charge a license based on the storage. ATT AlienVault USM is a less expensive solution than IBM QRadar."
"AlienVault is certainly not nearly as expensive as Splunk or QRadar. It's decently priced, but I don't have the exact figure."
"QRadar, ArcSight and Splunk are some of the most expensive SIEM products out there in the market and not everyone has the budget to buy them. In such cases, AV USM is a very cost effective alternative."
"The price of this solution is reasonable, which is one of the reasons why we selected it over other solutions."
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909,725 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
University
12%
Comms Service Provider
12%
Government
10%
Construction Company
7%
Construction Company
23%
Outsourcing Company
8%
Comms Service Provider
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business65
Midsize Enterprise29
Large Enterprise25
 

Questions from the Community

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...
What needs improvement with AT&T AlienVault USM?
There are scalability issues due to a 60 TB limit, which restricts its use for large customers like banks. It is also limited when used with bigger products and has complex password requirements.
What is your primary use case for AT&T AlienVault USM?
USM Anywhere is used for threat detection and investigation. It provides a solution with built-in threat intelligence and various other investigation tools.
 

Also Known As

No data available
AT&T AlienVault USM, AlienVault, AlienVault USM, Alienvault Cybersecurity
 

Overview

 

Sample Customers

Information Not Available
Abel & Cole, Bank of Ireland, Bluegrass Cellular, CareerBuilder, Claire's, Hays Medical Center, Hope International, McCurrach, McKinsey & Company, Party Delights, Pepco Holdings, Richland School District, Ricoh, SaveMart, Shake Shack, Steelcase, TaxAct, Taylor Morrison, Vonage and Zoom
Find out what your peers are saying about Security Onion vs. USM Anywhere and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.