AlienVault OSSIM vs ClearSkies SaaS NG SIEM comparison

AT&T and Odyssey Cybersecurity are both solutions in the Security Information and Event Management (SIEM) category. AT&T is ranked #12 with an average rating of 7.2, while Odyssey Cybersecurity is ranked #49 with an average rating of 7.0. AT&T holds a 1.9% mindshare in SIEM, compared to Odyssey Cybersecurity’s 0.6% mindshare. Additionally, 80% of AT&T users are willing to recommend the solution, compared to 100% of Odyssey Cybersecurity users who would recommend it.

AlienVault OSSIM

Read 31 AlienVault OSSIM reviews

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4,225 Comparison Views

80% willing to recommend

ClearSkies SaaS NG SIEM

Read 2 ClearSkies SaaS NG SIEM reviews

644 Views
631 Comparison Views

100% willing to recommend

AlienVault OSSIM

ClearSkies SaaS NG SIEM

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 18, 2024

AlienVault OSSIM and ClearSkies SaaS NG SIEM are two popular security information and event management systems. ClearSkies SaaS NG SIEM stands out due to its advanced features, making it a superior product despite higher pricing.

Features: AlienVault OSSIM includes comprehensive tools for threat detection, asset discovery, and vulnerability assessment. ClearSkies SaaS NG SIEM offers extensive analytical capabilities, a cloud-native approach, and sophisticated threat intelligence for real-time monitoring. ClearSkies’ advanced features provide a more robust solution for complex environments.

Room for Improvement: AlienVault OSSIM could enhance scalability, refine integration capabilities, and improve user interface design. ClearSkies SaaS NG SIEM users suggest better documentation, easier customization options, and a simplified onboarding process. These points indicate ClearSkies is more advanced but needs better user accessibility.

Ease of Deployment and Customer Service: AlienVault OSSIM is generally straightforward to deploy, though some users face initial setup challenges. Its customer service receives positive remarks. ClearSkies SaaS NG SIEM has mixed reviews on deployment due to its complexity but is supported by responsive customer service. AlienVault's deployment ease and support are beneficial, whereas ClearSkies' complexity reflects its advanced capabilities.

Pricing and ROI: AlienVault OSSIM is appreciated for lower setup costs and satisfactory ROI, making it appealing for budget-conscious users. ClearSkies SaaS NG SIEM, while pricier, delivers higher ROI due to its enhanced features and effectiveness in complex threat landscapes. For organizations prioritizing advanced capabilities over cost, ClearSkies justifies its higher price.

To learn more, read our detailed AlienVault OSSIM vs. ClearSkies SaaS NG SIEM Report (Updated: December 2025).

Buyer's Guide

AlienVault OSSIM vs. ClearSkies SaaS NG SIEM

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

ClearSkies SaaS NG SIEM

Ranking in Security Information and Event Management (SIEM)

49th

Average Rating

7.6

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

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 ClearSkies SaaS NG SIEM is 0.6%, up from 0.1% 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	1.9%
ClearSkies SaaS NG SIEM	0.6%
Other	97.5%

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

Zuhair Hasan

Manager, Information Technology Security at Nesma

Has good integration capability and provides information and events but improvement is needed in information retrieval speed

The best features are the comprehensive event collection and analysis. Once set up properly, we receive all events and information. The team analyzes our data and presents incidents to us. We can communicate with their team to escalate and resolve incidents. It has a feature we use to search for information about our environment and past incidents. This is very valuable. The integration capability is very good - the ClearSkies SaaS NG SIEM team is collaborative. We've integrated most of our systems, including EDR and NDR. They have agents to collect events from servers and assets.

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

"The most valuable feature is the logging capability."

"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."

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

"The solution is free to use."

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

"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 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."

More AlienVault OSSIM pros

"The correlation rules and the user platform are most valuable."

"The integration capability is very good - the ClearSkies SaaS NG SIEM team is collaborative. We've integrated most of our systems, including EDR and NDR. They have agents to collect events from servers and assets."

Cons

"AlienVault OSSIM could improve by having better integration with some of the newer tools."

"They can add more compliance templates."

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

"AlienVault OSSIM’s configuration and integration could be a little easier."

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

"AlienVault OSSIM failed to provide our company a full insight, while also giving out a lot of false positives."

"The solution needs more integration with cyber intelligence systems."

"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

"The main issue for improvement is the platform's slowness in presenting information. Retrieving information can take a little time when clicking on something."

"They can add behavior analytics and AI or machine learning technology. They also improve their correlation engine. In addition to collecting logs from devices, they can collect the traffic and then correlate these logs and the traffic information."

Pricing and Cost Advice

"The tool's licensing costs are yearly."

"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 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."

"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."

"The licensing fees for the non-community edition are paid on an annual basis, and there are no costs in addition to this."

"AlienVault OSSIM is free."

"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 expensive compared to its competitors."

More AlienVault OSSIM pricing and cost advice

"Regarding pricing, I'd say it's in the middle range. Pricing is very good compared to others."

"They have changed the pricing policy. Its price is competitive. Its price is less than half of the price of QRadar, LogRhythm, and Splunk."

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Comms Service Provider

12%

Financial Services Firm

Manufacturing Company

No data available

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 is your experience regarding pricing and costs for ClearSkies SaaS NG SIEM?

Regarding pricing, I'd say it's in the middle range. Pricing is very good compared to others.

See all answers

What needs improvement with ClearSkies SaaS NG SIEM?

The main issue for improvement is the platform's slowness in presenting information. Retrieving information can take a little time when clicking on something.

See all answers

What is your primary use case for ClearSkies SaaS NG SIEM?

I use the solution as a SIEM and managed SOC. It collects events and incidents from all our systems like, EDR, NDR, servers, and switches. The managed SOC team raises incidents for us to review and...

See all answers

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Product Reports

Buyer's Guide

AlienVault OSSIM

December 2025

Download AlienVault OSSIM product report

Buyer's Guide

Security Information and Event Management (SIEM)

November 2025

Download ClearSkies SaaS NG SIEM product report

Also Known As

OSSIM

ClearSkies NG 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

ClearSkies™ Software-as-a-Service is a fast, robust, scalable and flexible Next Generation SIEM solution. It provides real-time correlation of log data combined with evidence-based knowledge of emerging threats and vulnerabilities, thus allowing the early detection of and response to targeted attacks and data breaches.

Odyssey Cybersecurity

Sample Customers

Council Rock School District

Information Not Available

Buyer's Guide

AlienVault OSSIM vs. ClearSkies SaaS NG SIEM

December 2025

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