AlienVault OSSIM vs ConnectWise SIEM comparison

AT&T and ConnectWise are both solutions in the Security Information and Event Management (SIEM) category. AT&T is ranked #13 with an average rating of 7.2, while ConnectWise is ranked #51 with an average rating of 6.0. AT&T holds a 1.7% mindshare in SIEM, compared to ConnectWise’s 0.7% mindshare. Additionally, 80% of AT&T users are willing to recommend the solution, compared to 66% of ConnectWise users who would recommend it.

AlienVault OSSIM

Read 31 AlienVault OSSIM reviews

4,374 Views
4,287 Comparison Views

80% willing to recommend

ConnectWise SIEM

Read 3 ConnectWise SIEM reviews

2,108 Views
675 Comparison Views

66% willing to recommend

AlienVault OSSIM

ConnectWise SIEM

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Sep 18, 2024

AlienVault OSSIM and ConnectWise SIEM compete in the SIEM market. AlienVault OSSIM is generally preferred for its pricing and support, while ConnectWise SIEM is favored for its superior features.

Features: AlienVault OSSIM offers comprehensive threat detection, incident response capabilities, and flexibility due to its open-source nature. ConnectWise SIEM is noted for advanced analytics, integration capabilities, and robust feature set, with a particular emphasis on its advanced analytics.

Room for Improvement: AlienVault OSSIM needs enhancements in scalability, more intuitive system updates, and streamlined processes. ConnectWise SIEM could improve its real-time monitoring, dashboard customization, and ease of use for complex features.

Ease of Deployment and Customer Service: AlienVault OSSIM has a relatively straightforward deployment process but mixed reviews regarding customer support efficiency. ConnectWise SIEM, though more complex to deploy, receives high marks for its responsive and knowledgeable customer service.

Pricing and ROI: AlienVault OSSIM is favored for its cost-effectiveness and good ROI, making it suitable for smaller businesses with lower setup costs. ConnectWise SIEM is more expensive but delivers strong ROI through robust features and effectiveness, suited for larger organizations with complex security needs.

To learn more, read our detailed AlienVault OSSIM vs. ConnectWise SIEM Report (Updated: February 2026).

Buyer's Guide

AlienVault OSSIM vs. ConnectWise SIEM

February 2026

Download the complete report

Helped 881,733 peers since 2012

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

ConnectWise SIEM

Ranking in Security Information and Event Management (SIEM)

51st

Average Rating

8.6

Reviews Sentiment

6.6

Number of Reviews

Ranking in other categories

Endpoint Detection and Response (EDR) (53rd), Secure Access Service Edge (SASE) (21st), Managed Detection and Response (MDR) (25th)

Mindshare comparison

As of February 2026, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 1.7%, down from 4.2% compared to the previous year. The mindshare of ConnectWise SIEM is 0.7%, 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
Product	Market Share (%)
AlienVault OSSIM	1.7%
ConnectWise SIEM	0.7%
Other	97.6%

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.

Read full review

reviewer2711757

Cyber Security Software Engineer at a tech services company with 11-50 employees

Automated alerting and reporting excel while cost and feature limitations remain

I find automation to be one of the best and most valuable features of the product. Machine learning is incorporated into the solution, though AI is a broader term that I wouldn't apply here. I haven't personally explored AI yet, but I will investigate it. Machine learning functions more as automation in my experience, as there's no training involved yet. I want to conduct R&D on another project with Wazuh to determine how to capture usage, for example, tracking user logins and time spent. This is where I need to implement machine learning. Additionally, the extraction of GeoIP adds complexity. The solution is effectively reducing incident response times in operations.

Read full review

Quotes from Members

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

Pros

"The tool's security detection is good. It helps us with login tracking and generating reports. We aim to identify potential issues, such as brute-force attacks on user accounts or server-level anomalies. For instance, if I receive a report indicating a server is at an abnormal level, I investigate and address the issue."

"The paid version of the solution has reporting and better scalability options."

"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."

"The most valuable features of this solution are the data correlation and vulnerability assessment."

"The most valuable features of AlienVault OSSIM are case management, ease of configuration, and investigation."

"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."

"Asset discovery is good."

"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."

More AlienVault OSSIM pros

"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."

"We have found the solution has great functionality and it is easy to use."

Cons

"They can add more compliance templates."

"Lacking in depth of reporting."

"The documentation could be improved."

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

"The user interface needs to be friendlier across the board."

"It's under heavy traffic. If you have heavy traffic, the system is slow."

"The incidence reporting could be better."

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

More AlienVault OSSIM cons

"ConnectWise SIEM is primarily focused on notifications and is limited in that aspect, while Wazuh can automate the elimination process."

"ConnectWise Fortify could work on covering more areas, like phishing messages, which have become more complicated to detect."

"The manage portion of the solution is complicated and should be simplified by having different versions to meet the needs of different size companies."

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."

"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."

"The solution is open source, so it's free to use."

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

"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 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 an open-source solution."

"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."

More AlienVault OSSIM pricing and cost advice

"The solution is expensive."

See which vendors are best for you

Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.

See recommendations

881,733 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

13%

Comms Service Provider

11%

Financial Services Firm

Manufacturing Company

Computer Software Company

21%

University

Comms Service Provider

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

No data available

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 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...

See all answers

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...

See all answers

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...

See all answers

Comparisons

Wazuh vs AlienVault OSSIM

Compared 40% of the time

Venusense USM vs AlienVault OSSIM

Compared 10% of the time

Splunk Enterprise Security vs AlienVault OSSIM

Compared 7% of the time

USM Anywhere vs AlienVault OSSIM

Compared 7% of the time

Elastic Security vs AlienVault OSSIM

Compared 5% of the time

More AlienVault OSSIM Competitors

CrowdStrike Falcon Complete MDR vs ConnectWise SIEM

Compared 6% of the time

Zscaler Zero Trust Exchange Platform vs ConnectWise SIEM

Compared 5% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs ConnectWise SIEM

Compared 5% of the time

Wazuh vs ConnectWise SIEM

Compared 4% of the time

Sumo Logic Security vs ConnectWise SIEM

Compared 4% of the time

More ConnectWise SIEM Competitors

Product Reports

Buyer's Guide

AlienVault OSSIM

February 2026

Download AlienVault OSSIM product report

Buyer's Guide

Security Information and Event Management (SIEM)

February 2026

Download ConnectWise SIEM product report

Also Known As

OSSIM

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

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

IT solution providers are the first—and often only—line of defense for every kind of business in every part of the world. Whether managing mom-and-pop businesses or high-profile clients, providing preventive security measures is a must-have in today’s cybersecurity landscape. Security information and event management (SIEM) solutions offer an additional layer of security for your clients; however, most SIEM solutions are routinely difficult to manage, expensive to deploy, and require a significant amount of in-house cybersecurity expertise.

ConnectWise SIEM offers a powerful alternative to expand your security perspective to both prevention and detection. The solution includes comprehensive, flexible SIEM software that streamlines safety and security across your network without additional full-time employee costs or complicated implementations.

ConnectWise

Sample Customers

Council Rock School District

Techvera, Syrex, Clark Integrated Technologies

Buyer's Guide

AlienVault OSSIM vs. ConnectWise SIEM

February 2026

Free Report: AlienVault OSSIM vs. ConnectWise SIEM

Find out what your peers are saying about AlienVault OSSIM vs. ConnectWise SIEM and other solutions. Updated: February 2026.

DOWNLOAD NOW

881,733 professionals have used our research since 2012.

See our AlienVault OSSIM vs. ConnectWise SIEM report.

See our list of best Security Information and Event Management (SIEM) vendors.

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.