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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

"I have deployed it widely because I find that it gives value for money."
"The initial setup was straightforward. I didn't have any problems."
"The product is easy to use."
"There are a lot of people you will find using OSSIM since they are also offering OTX as a service"
"It is a perfectly nice and free tool for compliance testing, assessment, and some basic vulnerability."
"The most valuable feature is the logging capability."
"The threat policies of the solution are always very advanced and the best in the market, and they are very persistent in terms of keeping up with security protocols."
"The solution is very stable, and compared to QRadar and Splunk, it's very stable."
"The support I have received from the vendor has been great."
"The most valuable feature for us is that it comes with many correlations, reports, and dashboards already available, and it's also very easy to use."
"Doing Incident analysis in my opinion with ESM is easier than other solutions."
"I would tell potential customers that ESM has a feature called all in one box."
"It is a good central viewpoint for issues, which can then be investigated in more detail on the subnet servers and endpoints."
"It is easy to use and deploy. It comes with user-friendly manuals."
"VirusScan Enterprise provides protection against real-time malware attacks."
"It is easy to use."
 

Cons

"Sometimes it takes very long for your issue to get resolved."
"The initial setup was a bit complex. You've got to do a lot of reading. It's not an intuitive implementation."
"AlienVault OSSIM failed to provide our company a full insight, while also giving out a lot of false positives."
"The initial setup was not so easy, partly because the documentation was not up to date."
"It's under heavy traffic. If you have heavy traffic, the system is slow."
"It takes some time. It does not give me a prompt response for any such [malicious] traffic. It takes time to get that alert from the AlienVault system."
"When comparing AlienVault OSSIM to other solutions it looks a bit outdated. Additionally, they need to improve their integration."
"There needs to be more focus on the NOC and IIS in terms of developing applications for behavior detection."
"I have to purchase a new box now. Its existing box is not scalable and I can't use it anymore."
"The user interface could be more user-friendly."
"The product documentation is good, but could be better. Also a bug-free version would be nice as the version I worked on had a bug in the alarm system."
"Customized reports and alerting functionality could be included in the dashboard."
"Tech support is required each time there is a system update of the solution."
"McAfee ESM is not user-friendly and the log is not accurate. For instance, if I were assigned to generate a log for changes made today, I wouldn't be able to see all the modifications. While Palo Alto allows us to see all changes, McAfee ESM only captures one out of every ten changes. It's crucial to have visibility into all changes made."
"McAfee is no more providing security updates on this product, and the enhancements to this product seem to have stopped."
"There are always multiple bugs in the product."
 

Pricing and Cost Advice

"AlienVault OSSIM is expensive compared to its competitors."
"The tool's licensing costs are yearly."
"The solution is open source, so it's free to use."
"AlienVault OSSIM is free."
"The price of AlienVault OSSIM is too high sometimes for us to present to our customers. The price should be lower. We are on a three-year license to use the solution. We had to pay extra for the support."
"I used the paid version of the tool and found it to be expensive. It has been a while since I changed to Securonix. I will have to check whether AlienVault charges per device, user, or log."
"OSSIM is free."
"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."
"When compared to IBM Security QRadar and other similar platforms, the pricing of McAfee ESM is reasonable and comparatively less expensive."
"McAfee is the right choice for a low-budget solution."
"It is an inexpensive product. We purchase its yearly license."
"We pay for our licensing fees on a yearly basis, and there are no costs in addition to the standard licensing fees."
"The licensing cost is based on EPS."
"The cost is dependent on the customer's environment and requirements."
"The cost is all included. The finance department handles the financial part, and we mostly don't get involved in it."
"The product is slightly 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.