AlienVault OSSIM vs Sentinel comparison

AT&T and OpenText are both solutions in the Security Information and Event Management (SIEM) category. AT&T is ranked #13 with an average rating of 7.4, while OpenText is ranked #18 with an average rating of 7.5. AT&T holds a 1.4% mindshare in SIEM, compared to OpenText’s 2.9% mindshare. Additionally, 80% of AT&T users are willing to recommend the solution, compared to 82% of OpenText users who would recommend it.

AlienVault OSSIM

Read 31 AlienVault OSSIM reviews

4,551 Views
4,460 Comparison Views

80% willing to recommend

Sentinel

Read 17 Sentinel reviews

5,367 Views
5,260 Comparison Views

82% willing to recommend

AlienVault OSSIM

Sentinel

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 18, 2024

Sentinel and AlienVault OSSIM compete in the cybersecurity sector. Sentinel has the upper hand in pricing and customer service, while AlienVault OSSIM is preferred for its robust features.

Features: Sentinel users like its real-time threat detection, comprehensive reporting tools, and user-friendly interface. AlienVault OSSIM users value its integration capabilities with various security tools, extensive threat intelligence, and advanced monitoring features.

Room for Improvement: Users suggest Sentinel improve scalability, alert management, and user interface intuitiveness. AlienVault OSSIM users highlight the need for a more intuitive interface, faster processing speeds, and better user documentation.

Ease of Deployment and Customer Service: Sentinel is praised for its straightforward deployment process and responsive customer service. AlienVault OSSIM users find the setup more complex but recognize the comprehensive support provided post-deployment.

Pricing and ROI: Sentinel is generally seen as cost-effective with a quicker ROI. Users find AlienVault OSSIM pricier with a longer ROI period, but its advanced capabilities justify the investment.

To learn more, read our detailed AlienVault OSSIM vs. Sentinel Report (Updated: April 2026).

Buyer's Guide

AlienVault OSSIM vs. Sentinel

April 2026

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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)

13th

Average Rating

7.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

No ranking in other categories

Sentinel

Ranking in Security Information and Event Management (SIEM)

18th

Average Rating

7.6

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of April 2026, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 1.4%, down from 3.8% compared to the previous year. The mindshare of Sentinel is 2.9%, down from 3.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Security Information and Event Management (SIEM) Mindshare Distribution
Product	Mindshare (%)
AlienVault OSSIM	1.4%
Sentinel	2.9%
Other	95.7%

Security Information and Event Management (SIEM)

Featured Reviews

Brandon Pearce

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.

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Simon Johnston

Manager, Customer Success at Coltek Business Soltuions

Simple antivirus solution integrates well but could improve pricing and currency options

I don't really have experience working with these solutions. I promote them for our clients, but I don't work with them. I can't share my experience with these tools as I make assumptions about that. For both Adlumin and CrowdStrike, both confirm that they're scalable and enterprise-ready and all those kinds of things. We haven't had any specific problem with either of those. We just have a preference for which one we would prefer. If somebody says they want to use a different one from the one that we prefer, then we have to find reasons why they aren't. But scalability is not one of the reasons that one is better over the other. I don't really have advice for people that are looking into using Sentinel; just do your research across what is available. On a scale of one to ten, I rate Sentinel a seven.

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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

"The most valuable feature is the logging capability."

"Better than other SIEM solutions because almost everything can be integrated."

"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.""

"The solution has a very good open source community, and whenever we have problems, we are always able to resolve it online."

"The solution is very stable, and compared to QRadar and Splunk, it's very stable."

"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."

"With AlienVault you get everything in one box."

"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," and the solution works well and allows me to have visibility into anomalous events."

More AlienVault OSSIM pros

"In my opinion, Sentinel's best features include that it's a very easy product to use, it's very simple, and the after-sale service is very good."

"The native integration with out-of-the box format is hassle free and allows data to be used advantageously."

"One of the most valuable features is the business intelligence engine; it's very important because it keeps track of everything that's happening and alerts us if something is different than expected."

"It provides real time security event analytics."

"One of the most valuable features is the business intelligence engine. It's very important because it keeps track of everything that's happening and alerts us if something is different than expected. The first time I used it, I was shocked at how well it performed. Another valuable feature that I think makes this product worth the price you pay for it is that it connects to basically every system that provides some form of logging, and it's very easy to set up what triggers this."

"If Sentinel is integrated with Identity Manager and User Application Portal, the solution runs simply perfect!"

"Transactional user information improves security, prevents fraud, and promotes best practices."

"The most valuable feature is the flexible log for identifying security threats inside an application."

More Sentinel pros

Cons

"I suggest more in-built rules based on modern threats and environments to make it a more competitive solution."

"When comparing AlienVault OSSIM to other solutions it looks a bit outdated. Additionally, they need to improve their integration."

"The initial setup was a bit complex. You've got to do a lot of reading. It's not an intuitive implementation."

"I don't like to work on OSSIM because it is unpredictable."

"We need more dashboards and we need more customization for dashboards."

"AlienVault OSSIM is costly."

"Sometimes it takes very long for your issue to get resolved."

"It's so hard to configure and explore something new on it."

More AlienVault OSSIM cons

"Price is always a consideration, so the price would be nice if it were lower."

"There is a need for more flexibility in customization, especially when working with different vendors and platforms."

"This product's connection to certain types of cloud systems could be improved."

"The web interface needs to be improved, as it has a java-based way to call its controls."

"The dashboard and customer view should be improved."

"You need a lot of Unix scripting knowledge in order to manage the tool, which is one of the main issues that we faced."

"The dashboard and customer view should be improved"

"I rate Sentinel a six out of ten for scalability."

More Sentinel cons

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."

"OSSIM is free."

"AlienVault OSSIM is an open-source solution."

"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."

"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 tool's licensing costs are yearly."

"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 the community version, which can be used for free."

More AlienVault OSSIM pricing and cost advice

"The solution’s pricing is aligned with its competitors."

"Sentinel is a subscription-based solution."

"Sentinel's slightly on the expensive side."

"Sentinel is moderately priced."

"We inquired about getting support from the vendor, Micro Focus, but the cost was very high."

"We receive a pricing discount because of our ongoing partnership with Micro Focus."

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Top Industries

By visitors reading reviews

Comms Service Provider

14%

Manufacturing Company

Computer Software Company

Educational Organization

Financial Services Firm

10%

Computer Software Company

Manufacturing Company

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	18
Midsize Enterprise	9
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	3
Large Enterprise	7

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?

See all answers

What is your experience regarding pricing and costs for NetIQ Sentinel?

I don't have too many comments overall about pricing as we're in South Africa, so it makes more sense if it's billed in rand. They nearly always bill it in dollars, so if it can be billed in our cu...

See all answers

What needs improvement with NetIQ Sentinel?

I'm not sure what the room for improvement is for Sentinel. It needs to stay current, and it does, so I suppose that's fine. I don't have a high demand for what it should do. Price is always a cons...

See all answers

What is your primary use case for NetIQ Sentinel?

It's our go-to choice for antivirus. I use Sentinel a lot.

See all answers

Comparisons

Wazuh vs AlienVault OSSIM

Compared 24% of the time

Venusense USM vs AlienVault OSSIM

Compared 10% of the time

USM Anywhere vs AlienVault OSSIM

Compared 7% of the time

Splunk Enterprise Security vs AlienVault OSSIM

Compared 7% of the time

IBM Security QRadar vs AlienVault OSSIM

Compared 3% of the time

More AlienVault OSSIM Competitors

Splunk Enterprise Security vs Sentinel

Compared 19% of the time

IBM Security QRadar vs Sentinel

Compared 11% of the time

Wazuh vs Sentinel

Compared 6% of the time

Cortex XSIAM vs Sentinel

Compared 4% of the time

CrowdStrike Falcon vs Sentinel

Compared 4% of the time

More Sentinel Competitors

Product Reports

Buyer's Guide

AlienVault OSSIM

April 2026

Download AlienVault OSSIM product report

Buyer's Guide

Sentinel

March 2026

Download Sentinel product report

Also Known As

OSSIM

NetIQ Sentinel, Novell SIEM

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

Sentinel is a full-featured Security Information and Event Management (SIEM) solution that simplifies the deployment, management and day-to-day use of SIEM, readily adapts to dynamic enterprise environments and delivers the true "actionable intelligence" security professionals need to quickly understand their threat posture and prioritize response.

OpenText

Sample Customers

Council Rock School District

Faysal Bank, GaVI, Handelsbanken, ISC Mªnster, Lambeth Council, Swisscard, The Municipality of Siena, Tukes, University of Dayton, University of the Sunshine Coast

Buyer's Guide

AlienVault OSSIM vs. Sentinel

April 2026

Free Report: AlienVault OSSIM vs. Sentinel

Find out what your peers are saying about AlienVault OSSIM vs. Sentinel and other solutions. Updated: April 2026.

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