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AlienVault OSSIM vs LogRhythm SIEM 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)
27th
Average Rating
7.4
Reviews Sentiment
7.1
Number of Reviews
31
Ranking in other categories
No ranking in other categories
LogRhythm SIEM
Ranking in Security Information and Event Management (SIEM)
14th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
176
Ranking in other categories
Log Management (14th)
 

Mindshare comparison

As of August 2026, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 1.1%, down from 3.1% compared to the previous year. The mindshare of LogRhythm SIEM is 2.6%, down from 3.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
LogRhythm SIEM2.6%
AlienVault OSSIM1.1%
Other96.3%
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.
SumitKumar20 - PeerSpot reviewer
Security Engineer at Granicus Inc.
Tool consistently aids in effective threat detection and monitoring but could benefit from improved log source management and resource optimization
One major area for improvement in LogRhythm SIEM is the lack of volume measurement capability in terms of storage. There is currently no way to determine how much data is being consumed in terms of gigabytes, terabytes, or petabytes from particular devices or environments. This information is crucial for planning future storage needs and scalability. The system monitor (collector) agent has issues with resource consumption. Even when not actively collecting data, the agent continues to consume significant CPU and memory resources, which can be particularly problematic for small business environments with limited resources. LogRhythm SIEM could improve by adding more default device support. While they have good default settings for devices such as Palo Alto firewalls, custom log sources often require extensive work. Increasing the number of supported devices with built-in policies and functionality would reduce the need for custom work. Competitive SIEM tools often provide more comprehensive coverage for various devices and vendors.

Quotes from Members

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

Pros

"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."
"Inbuilt IDS, inbuilt integration with threat intelligence platform and with vulnerability assessment modules."
"I have deployed it widely because I find that it gives value for money."
"The paid version of the solution has reporting and better scalability options."
"The solution is very stable, and compared to QRadar and Splunk, it's very stable."
"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 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"
"LogRhythm really gave us a better understanding of what our overall risk is within our network and has opened our eyes to include other products that helped address different types of issues."
"We get a vast amount of ROI from this solution. We get way more out of it than we put into it."
"We have seen a measurable decrease in the mean time when detecting and responding to threats."
"The scalability is very good."
"The most valuable feature is scheduling the KB update, which reduces administrative effort."
"LogRhythm is successfully employed in a lot of organizations."
"I didn't know what to expect back in 2015 when we bought the product, but it's showing to be agile, scalable, and the people are very knowledgeable."
"The advanced intelligence engine, in fact the whole suite, is very powerful and as far as I’m concerned, it’s one of the best for security management."
 

Cons

"Sometimes it takes very long for your issue to get resolved."
"AlienVault OSSIM is costly."
"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 log collection is okay, but tracing the logs or tracing the events is a bit difficult."
"AlienVault OSSIM’s configuration and integration could be a little easier."
"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."
"It's so hard to configure and explore something new on it. It is not easy to find the steps we need to follow in order to use the solution effectively."
"AlienVault OSSIM should improve the deployment and make it unified like the USM."
"Only area I can think of to improve on is the proof reading and using the guides before releasing them. Out the the 20+ guides I used one had issues with wrong information in it."
"The Client Console is very bad."
"Easier creation of rules and parsing, and more user-friendly."
"When we are on-prem, it's a little complicated and has a lot of challenges that the customer doesn't want."
"A month or two will go by and everything will be fine, and all of a sudden, something breaks."
"After a year-and-a-half, we're not stable yet. Every time we think we're stable for a week or two, we wake up the next morning to another million logs backlogged somewhere."
"Functionality, ease of use. There are a few gotchas in the applications."
"The initial setup is complex and I rate it a six out of ten."
 

Pricing and Cost Advice

"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."
"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."
"AlienVault OSSIM is expensive compared to its competitors."
"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 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."
"If you don't have your staff, absolutely look into the co-pilot and factor that into your cost evaluation."
"Look closely at the cost of licensing of other products. This should include setups and the need for support services. I did a RFQ to 2 other vendors before choosing this product."
"The solution has provided us with consistency and increased staff productivity through orchestrated automated work flows by at least 20 percent."
"LogRhythm's pricing and licensing is extremely competitive and it's one of the top three reasons we continue to invest in the platform."
"The setup and licensing for small and medium size businesses is straightforward, though when it comes to the enterprise it pays to keep in mind the possibility for complications given all the extras and add-ons that may be required."
"I give the price a six out of ten."
"On a scale of one to ten, I'd rate the pricing of this solution as a seven - not too expensive but not cheap either. Regarding licensing costs, it varies depending on factors like being a partner or an end user, but there are no additional costs aside from standard licensing fees for the basic SIEM solution."
"Look for whatever will give you the most value. That's the main point. It is not one size fits all."
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Top Industries

By visitors reading reviews
Comms Service Provider
14%
Financial Services Firm
8%
University
7%
Computer Software Company
7%
Construction Company
13%
Financial Services Firm
9%
Outsourcing Company
8%
Comms Service Provider
7%
 

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 Business38
Midsize Enterprise39
Large Enterprise83
 

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 the difference between log management and SIEM?
Rony, Daniel's answer is right on the money. There are many solutions for each in the market, a lot depends upon your ability to manage such tools and your budget. A small operation may be best s...
What needs improvement with LogRhythm NextGen SIEM?
LogRhythm SIEM could learn from Wazuh, as Wazuh has a built-in mechanism that allows you to write custom scripting and scripts through languages that Wazuh can then trigger, which is somewhat bette...
What is your experience regarding pricing and costs for LogRhythm SIEM?
I find LogRhythm SIEM affordable, as it is a bit less costly than QRadar, although I have not been involved in negotiation charges; however, from the manager's approval, I see it as affordable.
 

Also Known As

OSSIM
LogRhythm NextGen SIEM, LogRhythm, LogRhythm Threat Lifecycle Management, LogRhythm TLM
 

Overview

 

Sample Customers

Council Rock School District
Macy's, NASA, Fujitsu, US Air Force, EY, Abbott, HD Supply, SAB Miller, UCLA, Raytheon, Amtrak, Cargill
Find out what your peers are saying about AlienVault OSSIM vs. LogRhythm SIEM and other solutions. Updated: August 2026.
909,099 professionals have used our research since 2012.