AlienVault OSSIM vs Wazuh comparison

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AlienVault OSSIM

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Executive SummaryUpdated on Nov 30, 2025

AlienVault OSSIM and Wazuh compete in the open-source security information and event management (SIEM) space. Wazuh seems to have the upper hand due to its impressive integration capabilities and adaptability for complex environments.

Features: AlienVault OSSIM offers unified security management with features like threat detection, incident response, and compliance management in one platform. Wazuh provides real-time threat detection, intrusion detection, and flexible deployment options, allowing for more customization. Wazuh's ability to integrate smoothly with other security tools and cloud environments enhances its adaptability across various IT infrastructures.

Room for Improvement: AlienVault OSSIM could improve scalability and responsiveness of its customer support. Enhancements in integration options could boost its adaptability. Documentation could be more comprehensive. Wazuh could simplify its initial setup and offer better in-house support options. Expanding its compliance standards to new regions could widen its appeal. More native features could reduce customization needs.

Ease of Deployment and Customer Service: AlienVault OSSIM benefits from a straightforward installation but faces challenges with customer service responsiveness. Wazuh offers an involved setup due to its customizability while providing strong community support, extensive documentation, and active forums for troubleshooting and guidance.

Pricing and ROI: AlienVault OSSIM is cost-effective initially for small organizations because of its free options but might incur higher scaling expenses. Wazuh, though requiring a potentially higher upfront investment for setup and customization, offers better long-term ROI for flexibility and integration into complex environments. AlienVault OSSIM can be appealing for simpler environments, while Wazuh presents more value for scalable needs.

To learn more, read our detailed AlienVault OSSIM vs. Wazuh Report (Updated: December 2025).

AlienVault OSSIM vs. Wazuh

December 2025

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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)

12th

Average Rating

7.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

No ranking in other categories

Wazuh

Ranking in Security Information and Event Management (SIEM)

2nd

Average Rating

7.4

Reviews Sentiment

6.1

Number of Reviews

Ranking in other categories

Log Management (1st), Extended Detection and Response (XDR) (5th)

Mindshare comparison

As of January 2026, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 1.9%, down from 4.3% compared to the previous year. The mindshare of Wazuh is 7.3%, down from 15.3% 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 (%)
Wazuh	7.3%
AlienVault OSSIM	1.9%
Other	90.8%

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

Rajin Sandira

Engineer - Information Security at N-Able (Pvt) Ltd

Has faced limitations in AI capabilities and pricing flexibility

Pricing-wise, Wazuh stands out, along with deployment flexibility and its documentation which is extremely good in comparison to Forti. The community support is also incredible. They have helped quite a bit because previously, we had a separate tool and management dashboard to do our compliance. With Wazuh, we receive that information without having to do anything extra. We just set up the SIEM and all of that information was automatically populated. The dashboards are very easy to understand and very quick with no lag or delay. I have experienced delays on Forti's dashboards, but not with Wazuh. Wazuh is quite good. In comparison to Forti, they are quite similar. They are very good at detection.

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 threat policies of the solution are always very advanced and the best in the market. They are very persistent in terms of keeping up with security protocols."

"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."

"The most valuable feature is the logging capability."

"The initial setup was straightforward. I didn't have any problems."

"There are a lot of people you will find using OSSIM since they are also offering OTX as a service"

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

"I recommend it due to the experience of the people running it."

"You pay monthly for the solution. I think it's one of the best products. If you compare with other companies, like LogRhythm, etc., the top 8 or 10 CMs, I think Alien Vault has the best price-performance ratio."

More AlienVault OSSIM pros

"The product is easy to customize."

"We use it to find any aberration in our endpoint devices. For example, if someone installs a game on their company laptop, Wazuh will detect it and inform us of the unauthorized software or unintended use of the devices provided by the company."

"It's stable."

"I find the PCI DSS feature the most valuable, along with the feature that monitors the compliance of Windows and the CIS benchmarks on other devices like Unix or Linux systems."

"Regarding Wazuh, I find the SCA (Security Configuration Assessment) features most valuable. It's crucial for asset management and inventory, allowing us to monitorendpoints and servers' changes easily. This is particularly important for my customers, who aren't heavily focused on incident response but rely on asset management and inventories. Wazuh's compliance management features are very supportive, especially in regions like the Americas and Europe. However, it's less effective in the ANZ (Australia and New Zealand) region since Wazuh doesn't cater to the specific compliance standards there, such as those required in Australia. I appreciate that Wazuh fully complies with PCI DSS and GDPR standards, allowing us to generate necessary reports."

"If they support a solution, it is easy to do an integration."

"I like the features we use, including malware detection, inventory, detection of hidden processes, and activity logs. Inventory is probably the most important feature. It tells us when processes and packages were installed and what they are, which is helpful."

"Wazuh automatically scans the host for CIS benchmarks for the latest updates and vulnerabilities and gives a host score. It provides a percentage of perceived risk due to of non patches or any missing patches on that work."

More Wazuh pros

Cons

"Sometimes technical issues take very long to get resolved."

"The price of this solution is very high and it could be cheaper."

"There are somewhat more false positives with the user behavior analytics, which could benefit from an additional machine learning model to detect user patterns more rapidly."

"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."

"AlienVault OSSIM should improve the deployment and make it unified like the USM."

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

More AlienVault OSSIM cons

"The product's configuration part and lack of AI capabilities are some of the major concerns associated with Wazuh."

"They could include flexibility and customization capabilities by modifying for customers based on partner agreements."

"The implementation is very complex."

"A lack of certain features creates limitations."

"There is room for improvement by integrating more AI into Wazuh. It requires constant nurturing, as I have to provide it with code and specific requirements."

"Wazuh should come up with more in-built rules and integrations for the cloud."

"The only challenge we faced with Wazuh was the lack of direct support."

"Wazuh requires substantial maintenance. The indexer frequently times out, requiring system restarts. When it comes to errors, debugging takes considerable time."

More Wazuh cons

Pricing and Cost Advice

"AlienVault OSSIM is free."

"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."

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

"The tool's licensing costs are yearly."

"AlienVault OSSIM is an open-source solution."

"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."

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

More AlienVault OSSIM pricing and cost advice

"Wazuh is open-source, therefore it is free. You can purchase support for $1,000 a year."

"Wazuh is a cheaply priced product."

"Wazuh is an open-source tool."

"It is an open-source product."

"Wazuh is a good tool, but the open-source version has scalability limitations."

"Wazuh has a community edition, and I was using that. It's free and open source."

"Wazuh is free and open source."

"Wazuh is open-source, so I think it's an option for a small organization that cannot go for enterprise-grade solutions like Splunk."

More Wazuh pricing and cost advice

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.

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Comms Service Provider

12%

Financial Services Firm

Manufacturing Company

Computer Software Company

14%

Comms Service Provider

10%

University

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

By reviewers
Company Size	Count
Small Business	27
Midsize Enterprise	15
Large Enterprise	8

Questions from the Community

What do you like most about AlienVault OSSIM?

Asset discovery is good.

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?

What do you like most about Wazuh?

Wazuh is its flexibility and open-source nature, which allows us to tailor threat detection and response across diverse client environments. Its integration capabilities with SOAR, cloud platforms,...

What needs improvement with Wazuh?

The lack of AI features is an issue at the moment in the industry. Forti provides user behavior capabilities, which I would want to see in Wazuh. In FortiSIEM, they provide user behavior understand...

What is your primary use case for Wazuh?

At the moment, I'm working in software integration, so we are working with FortiGate. To research and get an idea, I did some investigation into Wazuh. They have already used Fortinet products. The...

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Product Reports

Download AlienVault OSSIM product report

AlienVault OSSIM

January 2026

Download Wazuh product report

December 2025

Also Known As

OSSIM

Wazuh All-In-One Deployment

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

Wazuh offers an open-source platform designed for seamless integration into diverse environments, making it ideal for enhancing security infrastructure. Its features include log monitoring, compliance support, and real-time threat detection, providing effective cybersecurity management.

Wazuh stands out for its ability to integrate easily with Kubernetes, cloud-native infrastructures, and various SIEM platforms like ELK. It features robust MITRE ATT&CK correlation, comprehensive log monitoring capabilities, and detailed reporting dashboards. Users benefit from its file integrity monitoring and endpoint detection and response (EDR) capabilities, which streamline compliance and vulnerability assessments. While appreciated for its customization and easy deployment, room for improvement exists in scalability, particularly in the free version, and in areas such as threat intelligence integration, cloud integration, and container security. The platform is acknowledged for its strong documentation and technical support.

What are the key features of Wazuh?

MITRE ATT&CK Correlation: Streamlines threat analysis by correlating security data with known attack patterns.
Log Monitoring: Provides continuous oversight of log data to enhance security insights.
SIEM and ELK Integration: Simplifies centralization of security events and analytics.
Kubernetes Support: Ensures security measures align with containerized environments.
File Integrity Monitoring: Alerts on unauthorized changes to critical files.
Endpoint Detection and Response: Identifies and mitigates endpoint threats efficiently.
Compliance and Benchmarking: Built-in rules assist in meeting regulatory standards.

What benefits and ROI should users look for?

Cost-Effectiveness: Offers an affordable open-source security solution tailored for extensive customization.
Customization: Users can adjust features to fit unique security requirements.
Scalability: Facilitates growth by adapting to expanding security needs.
Comprehensive Support: Backed by detailed documentation and technical expertise.
Regulatory Compliance: Helps maintain adherence to industry-specific regulations.

In industries like finance, healthcare, and technology, Wazuh is utilized for its capabilities in log aggregation, threat detection, and vulnerability management. Companies often implement its features to ensure compliance with stringent regulations and to enhance security practices across cloud environments. By leveraging its integration capabilities, organizations can achieve unified security management, ensuring comprehensive protection of their digital assets.

Sample Customers

Council Rock School District

Information Not Available