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AlienVault OSSIM vs Trellix ESM comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 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

AlienVault OSSIM
Ranking in Security Information and Event Management (SIEM)
25th
Average Rating
7.4
Reviews Sentiment
7.1
Number of Reviews
31
Ranking in other categories
No ranking in other categories
Trellix ESM
Ranking in Security Information and Event Management (SIEM)
24th
Average Rating
7.4
Reviews Sentiment
7.0
Number of Reviews
38
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 1.2%, down from 3.1% compared to the previous year. The mindshare of Trellix ESM is 1.0%, down from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Trellix ESM1.0%
AlienVault OSSIM1.2%
Other97.8%
Security Information and Event Management (SIEM)
 

Featured Reviews

BP
Independent Contractor at a comms service provider with 5,001-10,000 employees
Enables cost-effective security management for small businesses
Scaling for USM is always challenging for any product unless it is purpose-built or overbuilt at the front end. They will use Palo Alto and its competitors, and LevelBlue will manage that implementation. The main area where the AlienVault product was lacking around the 2018 timeframe was in its ability to scale. By pushing it to a cloud-based system, they've largely alleviated scale issues. It's native in Amazon but will also run in Azure. They have worked with cloud service providers to offer enough throughput at a cost reasonable for a corporation. Scaling was their biggest problem, and they've largely conquered those issues.
MD
Senior Vice President IT at AS IT Consulting Pvt. Ltd.
Offers comprehensive report generation while maintaining ease of integration
We need to improve Trellix ESM by making sure that most of the logging devices available in the global market should be covered, and if there is any device which is not covered, there should not be any additional charges for writing the custom parsers on that. We can add some new features regarding AI in the future for Trellix ESM, but the maturity will take a longer time. There are many false positives that happen in an environment during the first couple of months, or around six months, so the system analyst is not able to identify whether the event which has occurred is a true positive or a false positive.

Quotes from Members

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

Pros

"The most valuable features of AlienVault OSSIM are case management, ease of configuration, and investigation."
"The initial setup is straightforward."
"What I like about this product, is that it is a fully-fledged solution."
"The product is easy to use."
"OSSIM is the only solution that includes the large number of modules that we need: a vulnerability scanner, a network IDS system, a host IDS system."
"It is a perfectly nice and free tool for compliance testing, assessment, and some basic vulnerability."
"The dashboard is the solution's most valuable aspect; it brings everything into one central point where I can actually look at it and go, "Okay, I understand what's going on," and the solution works well and allows me to have visibility into anomalous events."
"The solution is very stable, and compared to QRadar and Splunk, it's very stable."
"If a customer is specifically looking for log and event analysis, with the correlations, then this solution is a good choice."
"It is easy to use and deploy. It comes with user-friendly manuals."
"We are quite happy with the product and its stability, but the problem is the lack of support, which is one of the major issues that we are facing."
"I would tell potential customers that ESM has a feature called all in one box."
"Compared to other solutions, the user interface is good."
"It blocks the things which are not to be allowed. It has an adaptive mode where it learns for itself."
"The security can't be compromised, and the security features on offer are the most valuable feature and are why it's really worth having as a product like this in our organization."
"On the security side, it reduces the time needed to make changes in case of an attack; if we didn't have the tool, the amount of time would be double or triple, and it helps with productivity and the maturity of our security program."
 

Cons

"It's under heavy traffic. If you have heavy traffic, the system is slow."
"Sometimes it takes very long for your issue to get resolved."
"They can add more compliance templates."
"AlienVault OSSIM should improve the deployment and make it unified like the USM."
"From a management console perspective and the maturity of the dashboards, I would probably put it slightly behind some of the other players that have been in the market for ages."
"The solution needs more integration with cyber intelligence systems. Our customers want to use a single tool for managing cybersecurity."
"There are somewhat more false positives with the user behavior analytics, which could benefit from an additional machine learning model to detect user patterns more rapidly."
"AlienVault OSSIM gives unwanted notifications."
"When it came to using the solution for a larger organization, we were faced with some troubles attempting to manage the GUI functionality."
"We are having trouble migrating our data sources from version 10 to version 11.2. We cannot add new data sources to the most recent version."
"McAfee ESM is not able to cope with the advanced features."
"Tech support is required each time there is a system update of the solution."
"Executives don’t see ROI on this solution as the reports are not meant for C-levels."
"There should be support for multitenancy in the product."
"Product-wise, adding accounts on a single data source by batch would be a really great help."
"Product currently requires Flash."
 

Pricing and Cost Advice

"The tool's licensing costs are yearly."
"When comparing AlienVault OSSIM to Microsoft Sentinel, AlienVault OSSIM incurs additional costs due to its licensing price structure. If you are using AlienVault for security purposes at a certain level it can have a higher price point than the current pricing of Microsoft Sentinel."
"AlienVault OSSIM is expensive compared to its competitors."
"OSSIM is open source, and USM is the paid license. So, if you want, you can switch to USM. There you will have to buy a license, and they have a support team that helps you out on issues you face."
"AlienVault OSSIM is free."
"AlienVault pricing is the best. Whatever cost you are paying, you are getting a return on every penny... It's not like your IBM, your QRadar, or Splunk, where the cost is too high."
"We are using the community version, which can be used for free."
"OSSIM is free."
"The licensing cost is based on EPS."
"The product is slightly expensive."
"The price is good. It's moderate. We follow a pay-as-you-go model. There are different models available, and they can also be monthly. You can choose monthly or yearly. It's very flexible. If our existing customers exceed the current plan, you can just call McAfee and get it extended."
"You should buy the distributed option instead of the all-in-one for environments with more than 1000 end points."
"We renew our license annually."
"The cost is dependent on the customer's environment and requirements."
"Regarding pricing, Trellix ESM is not that expensive. It's less than half the cost of IBM QRadar."
"When compared to IBM Security QRadar and other similar platforms, the pricing of McAfee ESM is reasonable and comparatively less expensive."
report
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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
Comms Service Provider
14%
Financial Services Firm
8%
Manufacturing Company
7%
University
7%
Comms Service Provider
16%
Construction Company
13%
Outsourcing Company
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business18
Midsize Enterprise9
Large Enterprise8
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise6
Large Enterprise25
 

Questions from the Community

What is your experience regarding pricing and costs for AlienVault OSSIM?
It depends. I would need to review their cost models, but generally, they are on a scaled basis based on throughput usage. Because it's a software as a service solution for their core product for U...
What needs improvement with AlienVault OSSIM?
Scaling for USM is always challenging for any product unless it is purpose-built or overbuilt at the front end. They will use Palo Alto and its competitors, and LevelBlue will manage that implement...
What is your primary use case for AlienVault OSSIM?
This solution is very similar to most of the other MSSPs that you would find out there. When I look at use cases, AlienVault was initially aimed at small to medium businesses. It grew, and that was...
What is your experience regarding pricing and costs for McAfee ESM?
When discussing Trellix ESM pricing and licensing, if you consider some premium product, the pricing also has to be premium, however, enterprise customers who look for a premium product, alongside ...
What needs improvement with McAfee ESM?
Areas of Trellix ESM that could be improved or enhanced include checking on the clients who are still on-prem, especially banks, as most are not moving everything to the cloud due to confidentialit...
What is your primary use case for McAfee ESM?
My customer's usual use case for Trellix ESM involves one client, as most of the users have moved to ESM. Nowadays, they don't use IPS only, since McAfee IPS is standalone; they incorporate firewal...
 

Also Known As

OSSIM
McAfee ESM, NitroSecurity, McAfee Enterprise Security Manager
 

Overview

 

Sample Customers

Council Rock School District
San Francisco Police Credit Union, Wªstenrot Gruppe, Volusion, California Department of Corrections & Rehabilitation, Government of New Brunswick, State of Colorado, Macquarie Telecom, Texas Tech University Health Sciences Center, Cologne Bonn Airport
Find out what your peers are saying about AlienVault OSSIM vs. Trellix ESM and other solutions. Updated: September 2026.
913,806 professionals have used our research since 2012.