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AlienVault OSSIM vs SentinelOne Singularity AI SIEM comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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
SentinelOne Singularity AI ...
Ranking in Security Information and Event Management (SIEM)
8th
Average Rating
8.6
Reviews Sentiment
6.4
Number of Reviews
15
Ranking in other categories
AI Observability (6th)
 

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 SentinelOne Singularity AI SIEM is 1.3%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
SentinelOne Singularity AI SIEM1.3%
AlienVault OSSIM1.1%
Other97.6%
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.
Dev Reshwal - PeerSpot reviewer
Technical Support Executive at Softcell Technologies Limited
Automation has reduced workload and real-time monitoring provides faster incident response
SentinelOne Singularity AI SIEM is the best, but sometimes the dashboards are a little simple compared to other tools. The custom dashboard is not available in their features. Therefore, I would suggest adding the custom dashboard for any of our requirements. The AI-driven analytics from SentinelOne Singularity AI SIEM has not affected our ability to reduce false positives. SentinelOne Singularity AI SIEM has affected my SOC's efficiency in investigating alerts and responding to incidents. If we receive any alerts, we can observe what activity is being done. We can see if it is malicious or something suspicious, or a true positive. We can analyze the path, the hash, and whether the signature is verified or not. We can see if it is an alert triggered by any engine. We can see the source of this. We will do that type of analysis and raise it to the client side. Also, if I identify anything suspicious or malicious in the alert, I will forcefully kill and quarantine it immediately.

Quotes from Members

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

Pros

"I recommend it due to the experience of the people running it."
"With AlienVault you get everything in one box."
"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."
"Better than other SIEM solutions because almost everything can be integrated."
"Network traffic analysis is highly efficient."
"The solution is very stable, and compared to QRadar and Splunk, it's very stable."
"A very good feature of AlienVault OSSIM is that it has many domains that can be integrated from different solutions."
"What I like about this product, is that it is a fully-fledged solution."
"SentinelOne Singularity AI SIEM's AI-powered analytics does affect our SOC's ability to reduce false positives; that is one of the biggest advantages because the manpower that I have is limited."
"The best features of SentinelOne Singularity AI SIEM include its user-friendly interface, ease of deployment, and ease of use, and it is also easy to control the devices, as we block USB on all machines, export the configuration of machines, and have very good visibility of the instance with excellent reports."
"AI-driven capabilities will give me real-time detection and will protect my autonomous AI interruption."
"With the help of this tool, the response time to sophisticated threats has improved significantly, and it recently cuts the MTTR time using Purple AI by 40%."
"The AI features of SentinelOne Singularity AI SIEM are absolutely perfect."
"After using SentinelOne Singularity AI SIEM, it has reduced our incident response time by forty to fifty percent compared to other tools."
"The beauty of the integration is that it integrates very smoothly with third-party tools, so we do not need to think about the parsers, coding, depending on the codes, or the software developers."
"SentinelOne Singularity AI SIEM has improved our overall security posture and is reducing the workload on the SOC team."
 

Cons

"AlienVault OSSIM could improve by having better integration with some of the newer tools."
"I suggest more in-built rules based on modern threats and environments to make it a more competitive solution."
"The log collection is okay, but tracing the logs or tracing the events is a bit difficult."
"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."
"I would advise others to not implement it for any enterprise-level organization."
"There needs to be more focus on the NOC and IIS in terms of developing applications for behavior detection."
"ArcSight works better than AlienVault right now."
"The biggest thing I always complain about is that the user intake is a very old version."
"There is room for improvement when it comes to the technical support quality and expertise of SentinelOne. Sometimes, the technical support team does not know how to resolve certain issues and takes time to respond, often requiring follow-up interactions within 24 hours."
"Customer support could be better because it is frequently transferred to various agents."
"At the moment, I feel the pricing is a little bit on the higher side, but the tool is positioned in a place where risk is very high, and we do not want to take chances, so we are prepared to pay the premium."
"It is quite good, but the only downside is that it is costly."
"SentinelOne Singularity AI SIEM is the best, but sometimes the dashboards are a little simple compared to other tools."
"Another area for improvement is that the product is somewhat expensive. Pricing could be improved as well."
"While it provides many built-in decorations and dashboards, creating highly customized decoration rules and reports can sometimes require additional efforts."
"SentinelOne Singularity AI SIEM can improve in the area of XDR, especially in the integration between SentinelOne and other solutions and components in the network, as it was not working well with the Fortinet firewall."
 

Pricing and Cost Advice

"The licensing fees for the non-community edition are paid on an annual basis, and there are no costs in addition to this."
"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 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."
"AlienVault OSSIM is expensive compared to its competitors."
"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 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."
"The solution is open source, so it's free to use."
"AlienVault OSSIM is free."
Information not available
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Top Industries

By visitors reading reviews
Comms Service Provider
14%
Financial Services Firm
8%
University
7%
Construction Company
7%
Outsourcing Company
22%
Construction Company
7%
Manufacturing Company
6%
Media 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 Business12
Midsize Enterprise5
Large Enterprise4
 

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 needs improvement with SentinelOne Singularity AI SIEM?
They could expand more integrations for other third-party products that are not currently available. Those are areas they can improve or have yet to improve. For example, we have firewall integrati...
What is your primary use case for SentinelOne Singularity AI SIEM?
Clients can use SentinelOne Singularity AI SIEM for endpoint security solutions, and apart from that, we currently have something called prompt security where it is helping us to enhance control ov...
What advice do you have for others considering SentinelOne Singularity AI SIEM?
The automated workflow feature impacts my security tasks and manual efforts significantly. Downtime is not necessarily required in scenarios where a particular system has to be isolated. Whether it...
 

Also Known As

OSSIM
No data available
 

Overview

 

Sample Customers

Council Rock School District
Information Not Available
Find out what your peers are saying about AlienVault OSSIM vs. SentinelOne Singularity AI SIEM and other solutions. Updated: August 2026.
909,948 professionals have used our research since 2012.