AlienVault OSSIM vs i-SIEM [EOL] comparison

AT&T and Cybereason are both solutions in the Security Information and Event Management (SIEM) category. Additionally, 80% of AT&T users are willing to recommend the solution, compared to 100% of Cybereason users who would recommend it.

AlienVault OSSIM

Read 31 AlienVault OSSIM reviews

4,632 Views
4,539 Comparison Views

80% willing to recommend

i-SIEM [EOL]

Read 1 i-SIEM [EOL] review

100% willing to recommend

AlienVault OSSIM

i-SIEM [EOL]

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Jul 27, 2025

AlienVault OSSIM and i-SIEM [EOL] are competing in the security information and event management solutions category. Pricing and support favor AlienVault OSSIM, but i-SIEM [EOL]'s feature set makes it advantageous for comprehensive threat detection and response.

Features: AlienVault OSSIM offers an open-source nature, flexibility, and integrated threat intelligence tools. i-SIEM [EOL] provides robust data analysis capabilities, scalability, and machine learning integration.

Ease of Deployment and Customer Service: AlienVault OSSIM has easier deployment due to its open-source framework and community support. i-SIEM [EOL] requires more complex configuration but offers structured customer service with personalized support and detailed documentation.

Pricing and ROI: AlienVault OSSIM has lower upfront setup costs, appealing to budget-conscious organizations for a potentially faster ROI. i-SIEM [EOL] involves higher initial expenditure but offers long-term value through its feature-rich platform and scalability for businesses prioritizing advanced security capabilities.

To learn more, read our detailed Security Information and Event Management (SIEM) Report (Updated: September 2025).

Buyer's Guide

Security Information and Event Management (SIEM)

September 2025

Download the complete report

Helped 868,759 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

Average Rating

7.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

Security Information and Event Management (SIEM) (12th)

i-SIEM [EOL]

Average Rating

9.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

HarshBhardiya

SOC Engineer at Just Dial Limited

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.

Read full review

Dannie Combs

Senior Vice President and Chief Information Security Officer at Donnelley Financial Solutions

The alert fatigue and false positive rates have just plummeted, which is really exciting.

empow has a few areas of improvement as with any other technology, such as continuing to drive innovation in the dashboard. While we've been extremely impressed with the dashboard's ease of use, flexibility, ability to drill down deeply, and focus very intently on an area of interest, there will always be opportunities to be more innovative and open it up to a wider audience than just the operations group, for example. With reporting, there is always a desire to have custom reporting for every client of empow. Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways. This is an area that I recommend that they maintain focus.

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 product is majorly used for threat detection of the agents on servers and endpoints."

"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.""

"AlienVault OSSIM's GUI is very user-friendly."

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

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

"With AlienVault you get everything in one box."

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

"The solution is free to use."

More AlienVault OSSIM pros

"As a result of the automation, we are able to manage SIEM with a small security team. I'm in a unique position where we have been growing the security organization quite rapidly over the last three and a half years. But, as a direct result of the empow transition and legacy collection of tools towards the empow platform, we've been able to keep that head count flat. We've been able to redirect a lot of the security team's time away from the wash, rinse, repeat activities of responding to alarms where we have a high degree of confidence that they will be false positives, adjusting the rules accordingly. This can be a bit frustrating for the analyst when they have to spend hours a day dealing with these types of probable false positives. So, it has helped not only us keep our headcount flat relative to the resources necessary to provide the assurances that our executives expect of us for monitoring, but allows our analyst team to spend the majority of their time doing what they love. They are spending their time meaningfully with a higher degree of confidence and enjoying getting into the incident response type activity."

Cons

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

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

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

"The main area where the AlienVault product was lacking around the 2018 timeframe was in its ability to scale."

"I would like the solution to be able to integrate with my firewall, my IDS and my Honeypot solutions so that it can provide real-time reporting as things occur and then have alert sent to me on my phone when suspicious activity is happening."

"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."

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

"AlienVault OSSIM on-premise version is more difficult to implement than the cloud version. Additionally, they should add integration between several different environments at once and improve their online knowledge base."

More AlienVault OSSIM cons

"Relative to keeping up with the sheer pace of cloud-native technologies, it should provide more options for clients to deploy their technologies in unique ways. This is an area that I recommend that they maintain focus."

Pricing and Cost Advice

"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."

"AlienVault OSSIM is expensive compared to its competitors."

"The tool's licensing costs are yearly."

"AlienVault OSSIM is free."

"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."

"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."

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

More AlienVault OSSIM pricing and cost advice

"I don't have to put up with any longer with these hypercomplex licensing agreements. Every time I want to add some additional reporting as a compliance centric or regulatory specific, e.g., GDPR, PCI, or Sarbanes-Oxley, many providers would have an additional license for this, which felt a bit ridiculous to me. With the simplified licensing architecture, there were no hidden "gotchas" down the road with empow. Something I have experienced with other providers that I've worked with in the past."

"With a higher degree of fidelity in the alarms, we were able to avoid adding additional resources to our teams. We take into account the cost of security resources in the market and the significantly higher fidelity from the alarms that are being generated. This drove down our costs with our MSSP. It drove down my cost for human capital internally. It drove down our need to have multiple resources supporting the underlying infrastructure and health and maintenance of empow as a platform from several resources down to one. Therefore, human capital costs were significantly reduced. Our operating expenses were significantly reduced. Our capital costs were significantly reduced while tripling our capacity and our run rate reduced. It was almost a "too good to be true" situation. Fortunately, for us, it worked out very nicely."

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

868,759 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

14%

Comms Service Provider

12%

University

Educational Organization

Performing Arts

12%

Legal Firm

Computer Software Company

Financial Services Firm

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?

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...

See all answers

Ask a question

Earn 20 points

Comparisons

Wazuh vs AlienVault OSSIM

Compared 71% of the time

USM Anywhere vs AlienVault OSSIM

Compared 7% of the time

Venusense USM vs AlienVault OSSIM

Compared 7% of the time

Splunk Enterprise Security vs AlienVault OSSIM

Compared 5% of the time

Elastic Security vs AlienVault OSSIM

Compared 4% of the time

More AlienVault OSSIM Competitors

DNIF HYPERCLOUD vs i-SIEM [EOL]

Compared 100% of the time

More i-SIEM [EOL] Competitors

Product Reports

Buyer's Guide

AlienVault OSSIM

September 2025

Download AlienVault OSSIM product report

Buyer's Guide

Security Information and Event Management (SIEM)

September 2025

Download i-SIEM [EOL] product report

Also Known As

OSSIM

No data available

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

i-SIEM [EOL] delivers comprehensive monitoring and threat detection capabilities suitable for today's security challenges. It integrates with existing systems, enabling efficient threat analysis and response for knowledgeable users.

i-SIEM [EOL] offers advanced security analytics and seamless integration with security infrastructure, making it a favored choice among technology professionals. Its intuitive design caters to efficient threat management. Users appreciate its capability to process large data volumes for timely threat detection and remediation. The platform ensures effective incident response through automated processes, assisting professionals in maintaining robust security postures.

What are the key features of i-SIEM [EOL]?

Advanced Threat Detection: Utilizes real-time analytics for identifying potential security threats.
Integration Capabilities: Easily connects with diverse security tools for a cohesive security strategy.
Automated Incident Response: Facilitates swift responses to security incidents to mitigate risks.

What benefits and ROI can i-SIEM [EOL] offer?

Reduced Security Risks: Proactively identifies and addresses vulnerabilities before exploitation.
Operational Efficiency: Automation reduces manual workload and minimizes error.
Cost-Effectiveness: Streamlines processes to lower overall security management costs.

i-SIEM [EOL] is implemented across industries like finance, healthcare, and manufacturing, where security and compliance are critical. Its flexibility in handling specific industry requirements makes it suitable for enhancing security postures and operational efficiency.

Cybereason

Sample Customers

Council Rock School District

University of Oklahoma, Donnelley

Buyer's Guide

Security Information and Event Management (SIEM)

September 2025

Download Free Report

Find out what your peers are saying about Splunk, Wazuh, Microsoft and others in Security Information and Event Management (SIEM). Updated: September 2025.

DOWNLOAD NOW

868,759 professionals have used our research since 2012.

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.