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 7.4, while Odyssey Cybersecurity is ranked #50 with an average rating of 7.0. AT&T holds a 2.6% mindshare in SIEM, compared to Odyssey Cybersecurity’s 0.2% 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

4,632 Views
4,539 Comparison Views

80% willing to recommend

ClearSkies SaaS NG SIEM

Read 2 ClearSkies SaaS NG SIEM reviews

319 Views
313 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: September 2025).

Buyer's Guide

AlienVault OSSIM vs. ClearSkies SaaS NG SIEM

September 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)

50th

Average Rating

7.6

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

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 ClearSkies SaaS NG SIEM is 0.2%, 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	2.6%
ClearSkies SaaS NG SIEM	0.2%
Other	97.2%

Security Information and Event Management (SIEM)

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.

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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

"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."

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

"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 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."

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

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

"It has helped us remediate threats in the past by providing significant events that assisted in identifying suspicious activities, such as logins from multiple countries."

More AlienVault OSSIM pros

"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."

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

Cons

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

"AlienVault OSSIM is costly."

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

"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."

"The documentation could be improved."

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

"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."

"The correlation engine needs to be improved."

More AlienVault OSSIM cons

"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."

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

Pricing and Cost Advice

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

"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 tool's licensing costs are yearly."

"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."

"OSSIM is free."

"AlienVault OSSIM is free."

"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."

"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."

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

14%

Comms Service Provider

12%

University

Educational Organization

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?

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

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

September 2025

Download AlienVault OSSIM product report

Buyer's Guide

Security Information and Event Management (SIEM)

September 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

September 2025

Free Report: AlienVault OSSIM vs. ClearSkies SaaS NG SIEM

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