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AlienVault OSSIM vs Trellix ESM comparison

 

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)
12th
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)
18th
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 2025, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 2.8%, down from 4.4% compared to the previous year. The mindshare of Trellix ESM is 1.1%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
AlienVault OSSIM2.8%
Trellix ESM1.1%
Other96.1%
Security Information and Event Management (SIEM)
 

Featured Reviews

HarshBhardiya - PeerSpot reviewer
An open-source solution that provide good detection and more visibility
The solution is not scalable. It impacts so hard. In the initial stages, AlienVault OSSIM can be suitable for small environments. There may be limitations if the customer expresses a desire to expand and add more devices. In such cases, we would need to either explore additional solutions or work within the constraints of the existing setup. We have set up alerts and configured everything in AlienVault OSSIM. It actively monitors for any security incidents. It provides us with regular updates and notifications about any ongoing activities. Only one person is using the solution. It is the perfect solution for small businesses. I rate the solution’s scalability a three out of ten.
Daniel Durian - PeerSpot reviewer
Helps to monitor and detect cyberattacks
The tool's effectiveness depends on how you define your log sources. To build visibility of incoming and outgoing traffic, you need logs from perimeter defense, firewalls, web application firewalls, and endpoint protection. With good traffic visibility, incident response time is really quick. Trellix ESM provides situation awareness. On the dashboard, I can see outbound and inbound communications to known threat hosts, IPS/IDS activity, and threat intelligence of the perimeter defense in the firewall. This information helps preempt attacks.

Quotes from Members

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

Pros

"You can customize the dashboards as well as the reporting."
"It has helped us remediate threats in the past by providing significant events that assisted in identifying suspicious activities, such as logins from multiple countries."
"The threat alerts it gives me from time to time on harmful code within the network, or if they are generating any network traffic, are very useful."
"Asset discovery is good."
"The product is majorly used for threat detection of the agents on servers and endpoints."
"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.""
"Network traffic analysis is highly efficient."
"I recommend it due to the experience of the people running it."
"Compared to other solutions, the user interface is good."
"It has good technical support, which is available around the clock. You can call up anytime and get whatever you want. My queues are resolved."
"I like the ease of deployment."
"The solution's technical support is great."
"It is a good central viewpoint for issues. These can then be investigated in more detail on the subnet server(s)/endpoints."
"The most valuable feature is for the security operation center because it provides visibility of all traffic within the company infrastructure."
"It is user-friendly. The notification part of McAfee ESM is very easy."
"It has performed well and delivered the results that I have been looking for."
 

Cons

"I would like the solution to be able to integrate with my firewall, my IDS and my Honeypot solutions so that it can provide real-time reporting as things occur and then have alert sent to me on my phone when suspicious activity is happening."
"The user interface needs to be friendlier across the board."
"They can add more compliance templates."
"The initial setup was a bit complex. You've got to do a lot of reading. It's not an intuitive implementation."
"The solution needs more integration with cyber intelligence systems."
"The user interface could be improved."
"The documentation could be improved."
"It's under heavy traffic. If you have heavy traffic, the system is slow."
"There are some banking and transactional cases that are local, South America transactions. I would like to see them add features that can be used locally, to make those transactions more reliable."
"I would like to see good analytics in future releases."
"I would like to see improvements to the user interface."
"The only drawback is that they don't have any packet capturing or network behavior analysis."
"Product currently requires Flash."
"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."
"The initial setup is difficult and could improve."
"The only issue I have with McAfee is the amount of computer resources that it takes... it's definitely impacting some of the other applications that are running on a computer at the same time."
 

Pricing and Cost Advice

"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."
"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."
"AlienVault OSSIM is expensive compared to its competitors."
"We are using the community version, which can be used for free."
"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."
"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 free."
"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."
"It is an inexpensive product. We purchase its yearly license."
"The licensing cost is based on EPS."
"The product is slightly expensive."
"The cost is all included. The finance department handles the financial part, and we mostly don't get involved in it."
"The pricing is fair."
"You should buy the distributed option instead of the all-in-one for environments with more than 1000 end points."
"We pay for our licensing fees on a yearly basis, and there are no costs in addition to the standard licensing fees."
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Comparison Review

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Feb 26, 2015
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
12%
University
8%
Educational Organization
8%
Comms Service Provider
14%
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
6%
 

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 Enterprise24
 

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 do you like most about McAfee ESM?
The solution's technical support is great.
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...
 

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 2025.
867,370 professionals have used our research since 2012.