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AlienVault OSSIM vs ConnectWise 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)
12th
Average Rating
7.4
Reviews Sentiment
7.1
Number of Reviews
31
Ranking in other categories
No ranking in other categories
ConnectWise SIEM
Ranking in Security Information and Event Management (SIEM)
51st
Average Rating
8.6
Reviews Sentiment
6.6
Number of Reviews
3
Ranking in other categories
Endpoint Detection and Response (EDR) (57th), Secure Access Service Edge (SASE) (23rd), Managed Detection and Response (MDR) (27th)
 

Mindshare comparison

As of October 2025, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 2.6%, down from 4.3% compared to the previous year. The mindshare of ConnectWise SIEM is 0.4%, up from 0.2% 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 OSSIM2.6%
ConnectWise SIEM0.4%
Other97.0%
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.
Giulio Valeri - PeerSpot reviewer
Efficiently monitoring and detecting suspicious activities
One valuable feature of ConnectWise Fortify is the ability to add other teams and receive notifications when customers make changes or remove multi-factor authentication in Microsoft or SAP environments. For instance, once we were connecting different parts in China, and we had to reserve resources for the blue source of the login of task no v. ConnectWise Fortify successfully mitigated the issue and monitored any suspicious activity in the Microsoft environment. Despite the inconvenience, the Microsoft environment is still active and susceptible to cyber threats. We do a lot of research and utilize ConnectWise Fortify to restart and restore the system. It's essential to have a solution like ConnectWise Fortify to protect against cyber threats.

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 features of AlienVault OSSIM are case management, ease of configuration, and investigation."
"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 open vault component and the checking of vulnerabilities are the most valuable features. The page management helps with this. If you know how your device is vulnerable at least you can do something about it."
"OSSIM is the only solution that includes the large number of modules that we need: a vulnerability scanner, a network IDS system, a host IDS system."
"The most valuable features of this solution are the data correlation and vulnerability assessment."
"There are a lot of people you will find using OSSIM since they are also offering OTX as a service"
"AlienVault OSSIM is an enterprise solution that sells easily. It is rated highly by organizations."
"You can customize the dashboards as well as the reporting."
"We have found the solution has great functionality and it is easy to use."
"The integration capabilities of ConnectWise SIEM are off the shelf, making it easy to buy and use; you just unpack it and use it."
"One valuable feature of ConnectWise Fortify is the ability to add other teams and receive notifications when customers make changes or remove multi-factor authentication in Microsoft or SAP environments."
 

Cons

"AlienVault OSSIM’s configuration and integration could be a little easier."
"The user interface could be improved."
"They can add more compliance templates."
"The solution is not scalable."
"AlienVault OSSIM could improve by having better integration with some of the newer tools."
"GUI could be improved."
"Sometimes technical issues take very long to get resolved."
"Lacking in depth of reporting."
"ConnectWise SIEM is primarily focused on notifications and is limited in that aspect, while Wazuh can automate the elimination process."
"The manage portion of the solution is complicated and should be simplified by having different versions to meet the needs of different size companies."
"ConnectWise Fortify could work on covering more areas, like phishing messages, which have become more complicated to detect."
 

Pricing and Cost Advice

"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."
"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."
"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."
"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."
"OSSIM is free."
"The solution is open source, so it's free to use."
"AlienVault OSSIM is an open-source solution."
"The solution is expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
12%
University
8%
Educational Organization
8%
Computer Software Company
20%
Comms Service Provider
9%
Manufacturing Company
8%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business18
Midsize Enterprise9
Large Enterprise8
No data available
 

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 needs improvement with ConnectWise Fortify?
I haven't utilized the advanced threat intelligence capabilities with ConnectWise SIEM. Advanced threat intelligence is an option, but I haven't explored this feature yet. The advanced threat intel...
What is your primary use case for ConnectWise Fortify?
I do not have experience with ConnectWise SIEM for RMM, as I mostly work on Wazuh, and I have a team that handles ConnectWise SIEM. I'm linking with them, serving as the bridge. I am solely working...
What advice do you have for others considering ConnectWise Fortify?
The review can be made anonymous if just my name and not the company name is used. I would assess the real-time visibility for my organization as somewhat real-time, but it's not fully real-time. T...
 

Also Known As

OSSIM
ConnectWise Security Management, ConnectWise Fortify, Continuum Fortify, ConnectWise SIEM, ConnectWise SASE
 

Overview

 

Sample Customers

Council Rock School District
Techvera, Syrex, Clark Integrated Technologies
Find out what your peers are saying about AlienVault OSSIM vs. ConnectWise SIEM and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.