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AlienVault OSSIM vs Trellix ESM comparison

AT&T and Trellix are both solutions in the Security Information and Event Management (SIEM) category. AT&T is ranked #8 with an average rating of 7.4, while Trellix is ranked #20 with an average rating of 8.0. AT&T holds a 3.4% mindshare in SIEM, compared to Trellix’s 1.0% mindshare. Additionally, 80% of AT&T users are willing to recommend the solution, compared to 75% of Trellix users who would recommend it.
AlienVault OSSIM
Read 31 AlienVault OSSIM reviews
  • 5,391 Views
  • 5,283 Comparison Views
80% willing to recommend
Trellix ESM
Read 37 Trellix ESM reviews
  • 1,718 Views
  • 1,563 Comparison Views
75% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 18, 2024

Trellix ESM and AlienVault OSSIM are popular security management solutions with distinct advantages. Users express a preference for the features and pricing of AlienVault OSSIM, while Trellix ESM is favored for its support and customer service.

Features: Trellix ESM is praised for its robust threat detection and response capabilities. Users highlight its advanced analytics and reporting functionalities. AlienVault OSSIM is appreciated for its ease of integration, comprehensive threat intelligence, and open-source flexibility.

Room for Improvement: Trellix ESM users suggest improvements for its complex configuration processes and call for more flexibility around its analytics capabilities. AlienVault OSSIM users seek enhancements in scalability and desire more frequent updates.

Ease of Deployment and Customer Service: Trellix ESM’s deployment is often described as challenging, demanding significant expertise, but its customer service is highly rated for being responsive and helpful. AlienVault OSSIM is noted for its relatively straightforward deployment process, thanks to being open-source, although its customer support is sometimes considered less responsive.

Pricing and ROI: Trellix ESM involves a higher initial setup cost but is considered to deliver a strong ROI over time. AlienVault OSSIM is noted for its lower setup costs and being cost-effective due to its open-source nature, which provides an attractive ROI quick-win.

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To learn more, read our detailed AlienVault OSSIM vs. Trellix ESM Report (Updated: June 2025).
Buyer's Guide
AlienVault OSSIM vs. Trellix ESM
June 2025
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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)
8th
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)
20th
Average Rating
7.4
Reviews Sentiment
7.4
Number of Reviews
37
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 3.4%, down from 4.1% compared to the previous year. The mindshare of Trellix ESM is 1.0%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
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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.
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Quotes from Members

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

Pros

"AlienVault OSSIM's GUI is very user-friendly."
"The most valuable features of AlienVault OSSIM are vulnerability assessment, network intrusion detection system, response to critical events, and awareness of the whole network."
"The solution is very stable. Compared to Qradar and Splunk, it's very stable."
"Asset discovery is good."
"The most valuable features of AlienVault OSSIM are case management, ease of configuration, and investigation."
"The initial setup was straightforward. I didn't have any problems."
"Its user-friendliness is the most valuable. It is very easy to use and explore. The dashboard is very well packaged and integrated. You don't have to spend a lot of time in configuring it and checking out the RPM etc. It is also free and very powerful."
"You pay monthly for the solution. I think it's one of the best products. If you compare with other companies, like LogRhythm, etc., the top 8 or 10 CMs, I think Alien Vault has the best price-performance ratio."
More AlienVault OSSIM pros
"This solution integrates easily and very well with other technologies."
"It is easy to use."
"The most valuable feature is the capability to correlate different events from different platforms that we feed into it."
"The strongest part of Trellix ESM is that we get quite good reports."
"The solution's technical support is great."
"The most valuable features of McAfee ESM are intrusion detection, malware protection, and the device controller."
"We are now able to completely monitor our environment so we can review what is there, which is a big win for us."
"The most valuable feature in ESM is its search and reporting feature. It's really nice."
More Trellix ESM pros
 

Cons

"The price of this solution is very high and it could be cheaper."
"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."
"The main area where the AlienVault product was lacking around the 2018 timeframe was in its ability to scale."
"The user interface could be improved."
"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 on-premise version is more difficult to implement than the cloud version. Additionally, they should add integration between several different environments at once and improve their online knowledge base."
"AlienVault OSSIM could improve by having better integration with some of the newer tools."
"It's so hard to configure and explore something new on it."
More AlienVault OSSIM cons
"We would welcome integrations with some of the new McAfee acquisitions, e.g., behavioural analytics."
"There are always multiple bugs in the product. For example, the console page was hanging multiple times. Afterwards, they released multiple upgrades for the same, multiple patches from McAfee."
"It seems McAfee does test its product before releasing. When we - not only us, other companies also - deploy McAfee, we face multiple issues from the customer side, after which, McAfee reacts and fixes the bugs."
"The user interface could be more user-friendly."
"It is not a very advanced solution, and it is for very generic use cases. It cannot cope with the advanced requirements that we're going to have. For example, for multiple authentication failures, it is still based on Windows events for detecting multiple login failures, whereas other companies are going beyond and working on implementing two-factor authentication. It is time to correlate the two-factor authentication results with authentification failures, which is not happening with McAfee ESM. The performance of the tool should be improved because it is very slow. The data display on the console is very slow in McAfee ESM. Its data storage is still old-fashioned, and it should be improved and upgraded to the latest versions. They have to come up with some new ideas to match what other leaders in the same domain are doing. For example, in Splunk, when you search for information for the last 60 days or five months, it quickly shows the information, but that is not the case with McAfee. The results should be quicker and faster on the console. They should integrate some additional features such as User Behavior Analytics (UBA) and automation. The threat intelligence part should also be improved on McAfee."
"The product is mature and needs little improvement, but we could enhance the customized dashboarding based on use cases."
"We acquired the IBM product because McAfee is slightly confusing to use, and it's broader."
"We cannot add new data sources to the most recent version."
More Trellix ESM cons
 

Pricing and Cost Advice

"AlienVault OSSIM is an open-source solution."
"AlienVault OSSIM is expensive compared to its competitors."
"The tool's licensing costs are yearly."
"We are using a free version of the solution. If you purchase a license there are more features available but the price is a little high. The solution should be cheaper to allow more customers to be able to afford it."
"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 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."
"The licensing fees for the non-community edition are paid on an annual basis, and there are no costs in addition to this."
"AlienVault OSSIM is free."
More AlienVault OSSIM pricing and cost advice
"The cost is all included. The finance department handles the financial part, and we mostly don't get involved in it."
"It is an inexpensive product. We purchase its yearly license."
"Regarding pricing, Trellix ESM is not that expensive. It's less than half the cost of IBM QRadar."
"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."
"The pricing is fair."
"The product is slightly expensive."
"We renew our license annually."
"When compared to IBM Security QRadar and other similar platforms, the pricing of McAfee ESM is reasonable and comparatively less expensive."
More Trellix ESM pricing and cost advice
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Comparison Review

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Feb 26, 2015
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Read full review
 

Top Industries

By visitors reading reviews
Computer Software Company
16%
Comms Service Provider
10%
Financial Services Firm
8%
University
8%
Educational Organization
26%
Financial Services Firm
11%
Computer Software Company
10%
Comms Service Provider
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about AlienVault OSSIM?
Asset discovery is good.
See all answers
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...
See all answers
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...
See all answers
What do you like most about McAfee ESM?
The solution's technical support is great.
See all answers
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 ...
See all answers
What needs improvement with McAfee ESM?
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...
See all answers
 

Comparisons

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Compared 6% of the time
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Compared 4% of the time
Splunk Enterprise Security vs AlienVault OSSIM Logo
Splunk Enterprise Security vs AlienVault OSSIM
Compared 3% of the time
Microsoft Defender XDR vs AlienVault OSSIM Logo
Microsoft Defender XDR vs AlienVault OSSIM
Compared 2% of the time
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OpenText Enterprise Security Manager vs Trellix ESM Logo
OpenText Enterprise Security Manager vs Trellix ESM
Compared 28% of the time
Splunk Enterprise Security vs Trellix ESM Logo
Splunk Enterprise Security vs Trellix ESM
Compared 15% of the time
LogRhythm SIEM vs Trellix ESM Logo
LogRhythm SIEM vs Trellix ESM
Compared 14% of the time
SentinelOne Singularity Complete vs Trellix ESM Logo
SentinelOne Singularity Complete vs Trellix ESM
Compared 11% of the time
Fortinet FortiSIEM vs Trellix ESM Logo
Fortinet FortiSIEM vs Trellix ESM
Compared 10% of the time
More Trellix ESM Competitors
 

Product Reports

Buyer's Guide
AlienVault OSSIM
July 2025
AlienVault OSSIM reportDownload AlienVault OSSIM product report
Buyer's Guide
Trellix ESM
June 2025
Trellix ESM reportDownload Trellix ESM product report
 

Also Known As

OSSIM
McAfee ESM, NitroSecurity, McAfee Enterprise Security Manager
 

Overview

AlienVault OSSIM, Open Source Security Information and Event Management (SIEM), provides you with a feature-rich open source SIEM complete with event collection, normalization and correlation. Launched by security engineers because of the lack of available open source products, AlienVault OSSIM was created specifically to address the reality many security professionals face: A SIEM, whether it is open source or commercial, is virtually useless without the basic security controls necessary for security visibility.

AT&T

Make your organization more resilient and confident with Trellix Security Operations. Filter out the noise and cut complexity to deliver faster, more effective SecOps. Integrate your existing security tools and connect with over 650 Trellix solutions and third-party products.

Trellix
 

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
Buyer's Guide
AlienVault OSSIM vs. Trellix ESM
June 2025
Free Report: AlienVault OSSIM vs. Trellix ESM
Find out what your peers are saying about AlienVault OSSIM vs. Trellix ESM and other solutions. Updated: June 2025.
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We monitor all Security Information and Event Management (SIEM) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.