AlienVault OSSIM vs OpenText Enterprise Security Manager comparison

AT&T and OpenText are both solutions in the Security Information and Event Management (SIEM) category. AT&T is ranked #8 with an average rating of 7.4, while OpenText is ranked #21 with an average rating of 7.0. AT&T holds a 3.4% mindshare in SIEM, compared to OpenText’s 1.2% mindshare. Additionally, 80% of AT&T users are willing to recommend the solution, compared to 88% of OpenText users who would recommend it.

AlienVault OSSIM

Read 31 AlienVault OSSIM reviews

5,391 Views
5,283 Comparison Views

80% willing to recommend

OpenText Enterprise Securit...

Read 97 OpenText Enterprise Security Manager reviews

2,528 Views
2,376 Comparison Views

88% willing to recommend

AlienVault OSSIM

OpenText Enterprise Securit...

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Executive SummaryUpdated on Jun 19, 2025

OpenText Enterprise Security Manager and AlienVault OSSIM compete in the enterprise security management category. OpenText ESM seems to have the upper hand in terms of robustness and customization, making it more suitable for large organizations.

Features: OpenText ESM includes comprehensive integration, real-time threat detection, and scalability. AlienVault OSSIM provides a user-friendly dashboard, data correlation, and vulnerability assessment.

Room for Improvement: OpenText ESM requires user interface enhancements, better reporting capabilities, and improved threat intelligence integration. AlienVault OSSIM needs to enhance its scalability, improve integration capabilities, and streamline response times.

Ease of Deployment and Customer Service: OpenText ESM offers hybrid and cloud solutions but has a steep learning curve. Customer service may experience delays. AlienVault OSSIM supports on-premises and cloud deployments and offers simpler installations with some support delays noted.

Pricing and ROI: OpenText ESM is relatively expensive with a complex licensing model but provides high ROI for large enterprises. AlienVault OSSIM is open-source, offering budget-friendly options with potential high ROI for smaller enterprises.

To learn more, read our detailed AlienVault OSSIM vs. OpenText Enterprise Security Manager Report (Updated: July 2025).

Buyer's Guide

AlienVault OSSIM vs. OpenText Enterprise Security Manager

July 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)

8th

Average Rating

7.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

No ranking in other categories

OpenText Enterprise Securit...

Ranking in Security Information and Event Management (SIEM)

21st

Average Rating

7.8

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of July 2025, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 3.4%, down from 4.1% compared to the previous year. The mindshare of OpenText Enterprise Security Manager is 1.2%, down from 1.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

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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Gaurav Ranade

CTO at Rah Infotech Pvt Ltd

Excels at performing regression and correlation on the data

ArcSight is a legacy technology, and many customers want AI-powered technologies integrated with it. That hasn't been done yet, but ArcSight needs to catch up with the newer solutions and technologies available in the market. It can't just rely on the legacy technology from 2010 or 2012. You can't run that in 2024. It's a legacy technology with its own limitations. Customers often face issues that other software or newer solutions can resolve easily. That's the main challenge we face from customers right now. So, the only concerns are that AI needs to be integrated and scalability improved. Those are the main areas to be improved.

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Quotes from Members

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

Pros

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

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

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

"The solution is very stable. Compared to Qradar and Splunk, it's very stable."

"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 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."

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

"AlienVault OSSIM is an enterprise solution that sells easily. It is rated highly by organizations."

More AlienVault OSSIM pros

"The most valuable feature of ArcSight ESM is its ease of use."

"We do consulting and I get feedback from our clients that the product really helped them with compliance, especially with GDPR."

"The webpage algorithm is the most valuable feature because it was the fastest feature for searching the logs, events, and correlation."

"ArcSight gives us better visibility into threats that were unknown earlier."

"The product is quite mature. It's been around for a long time."

"Usability is the most valuable feature. The accessibility is quite good."

"It is a robust product and has multiple valuable features."

"I would rate the ease of use for new users an eight out of ten, with ten being easy to use. It is a good tool."

More OpenText Enterprise Security Manager pros

Cons

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

"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."

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

"We need more dashboards and we need more customization for dashboards."

"The solution is not scalable."

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

"The documentation could be improved."

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

More AlienVault OSSIM cons

"I am having issues with report generation with older versions. I don't know if this is because of compatibility issues, but report generation has been a little bit difficult in older versions. It is not similar to the newer and current versions. We are looking at moving to the cloud. It would be good if ArcSight ESM can move to the cloud. They already seem to be working on this. It would also be very helpful and great if we can integrate external threat intelligence, machine learning, and AI into this solution. It has good dashboards, but they can always be better. Its stability can also be improved."

"The biggest requirement is that there is no cloud solution for this product yet. They need to create a cloud version. It's the biggest thing they can do to make the solution better."

"I would like for them to integrate mobile devices. Integration or any kind of functionality which will act as a substitute for IBM so that we can really track our mobile devices as well as look at SIEM."

"The initial setup is very complex. We had to architect a deployment which allowed us to incorporate an ever growing number of customers into our hosted instance of ArcSight."

"The first limitation is with the ArcSight Data Storage Manager (ADSM). ArcSight's total capacity is currently capped at 12 TB. This becomes an issue if a customer needs a longer real-time data retention period, such as exceeding 90 days or reaching a year or even ten months. Increasing the disk space beyond 12 TB is not currently possible."

"The initial setup could be more straightforward."

"The stability of ArcSight Enterprise Security Manager (ESM) is not very robust."

"Customer service during the transition from HPE to Micro Focus was abysmal where it became disruptive to our service delivery."

More OpenText Enterprise Security Manager cons

Pricing and Cost Advice

"AlienVault OSSIM is an open-source solution."

"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."

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

"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."

"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 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."

"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."

More AlienVault OSSIM pricing and cost advice

"The pricing is great compared to others."

"The solution is super expensive. At our organization size and license model, I think the price is average to what anyone else would charge us."

"There is a license required for this solution."

"Customers without a ton of resources to dedicate to deployment may be better served by a managed ArcSight service."

"Price-wise, ArcSight ESM was a bit high compared to competitors, which factored into our decision to switch to Splunk. It couldn't cover all our business needs for what we wanted to implement."

"ArcSight is pretty expensive compared with its competitors. I believe that is fine as it provides value."

"ArcSight ESM is an affordable solution, it cost approximately $200,000 for three years. This price was at a substantial discount."

"The licensing cost is affordable if you get an enterprise license. The licensing is based on EPS, so you can probably provide a package of license for multiple ESMs with their correlational end fees. It is cost-effective."

More OpenText Enterprise Security Manager pricing and cost advice

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Comparison Review

Vinod Shankar

Manager, Enterprise Risk Consulting at Deloitte & Touche

Jun 28, 2015

Qradar vs. ArcSight

Continuing with the SIEM posts we have done at Infosecnirvana, this post is a Head to head comparison of the two Industry leading SIEM products in the market – HP ArcSight and IBM QRadar Both the products have consistently been in the Gartner Leaders Quadrant. Both HP and IBM took over niche SIEM…

Read full review

Top Industries

By visitors reading reviews

Computer Software Company

16%

Comms Service Provider

10%

Financial Services Firm

University

Financial Services Firm

19%

Computer Software Company

13%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

Which is the best SIEM tool for a mid-sized financial services firm: Arcsight or Securonix?

In my market, a lot of financial companies had or have an ArcSight installation. Just because in former times it was pretty good. Now a lot of them are looking for a more effective solution due to ...

See all answers

What do you like most about ArcSight Enterprise Security Manager (ESM)?

We utilize ArcSight ESM for real-time threat detection in our organization. We have custom rules that we've developed on top of the WAN services, along with scheduled licensing activities.

See all answers

What is your experience regarding pricing and costs for ArcSight Enterprise Security Manager (ESM)?

ArcSight Enterprise Security Manager (ESM) is very cheap compared to other tools. It is worth the investment if you are considering the cost.

See all answers

Comparisons

Wazuh vs AlienVault OSSIM

Compared 75% of the time

USM Anywhere vs AlienVault OSSIM

Compared 6% of the time

Elastic Security vs AlienVault OSSIM

Compared 4% of the time

Splunk Enterprise Security vs AlienVault OSSIM

Compared 3% of the time

Microsoft Defender XDR vs AlienVault OSSIM

Compared 2% of the time

More AlienVault OSSIM Competitors

Trellix ESM vs OpenText Enterprise Security Manager

Compared 23% of the time

Splunk Enterprise Security vs OpenText Enterprise Security Manager

Compared 14% of the time

Elastic Security vs OpenText Enterprise Security Manager

Compared 9% of the time

IBM Security QRadar vs OpenText Enterprise Security Manager

Compared 6% of the time

Google Chronicle Suite vs OpenText Enterprise Security Manager

Compared 6% of the time

More OpenText Enterprise Security Manager Competitors

Product Reports

Buyer's Guide

AlienVault OSSIM

July 2025

Download AlienVault OSSIM product report

Buyer's Guide

OpenText Enterprise Security Manager

June 2025

OpenText Enterprise Security Manager report

Download OpenText Enterprise Security Manager product report

Also Known As

OSSIM

Micro Focus ArcSight, HPE ArcSight, ArcSight

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

OpenText Enterprise Security Manager enables real-time threat detection through scalable and adaptable solutions, integrating seamlessly with multiple platforms for complex security scenarios across different environments.

OpenText Enterprise Security Manager offers extensive security monitoring capabilities, combining log analysis and incident management to enhance cybersecurity and compliance. Its powerful event correlation engine provides real-time alerts for rapid incident response. Users benefit from customizable dashboards and comprehensive log collection, making it a significant tool in the SIEM market. Flexible deployment options cater to both on-premises and cloud environments, supporting enterprises in managing IT infrastructure and threat detection efficiently.

What are the key features of OpenText Enterprise Security Manager?

Event Correlation Engine: Real-time threat detection with advanced correlation capabilities.
Scalability: Adapts to enterprise-level demands and complex security needs.
Integration: Seamlessly integrates with multiple platforms and third-party tools.
Customizable Dashboards: Tailored views and active lists enhance user experience.
Advanced Alerting: Provides timely incident response and security alerts.

Why should users look for reviews when evaluating OpenText Enterprise Security Manager?

Timely Incident Responses: Fast alerting and action against threats.
User-Friendly Experience: Customizable dashboards simplify monitoring tasks.
Comprehensive Security Management: Integrated log management and threat detection across domains.
Adaptability and Scalability: Supports both on-premises and cloud deployments.

In industries such as finance, healthcare, and energy, OpenText Enterprise Security Manager is implemented for monitoring critical systems and ensuring compliance with regulatory needs. Enterprises leverage its capabilities for forensic investigations and active threat management, serving as a central hub for cybersecurity operations across diverse IT infrastructures.

OpenText

Sample Customers

Council Rock School District

Lake Health, U.S. Department of Health and Human Services, Bank AlJazira, Banca Intesa, and Obrela.

Buyer's Guide

AlienVault OSSIM vs. OpenText Enterprise Security Manager

July 2025

Free Report: AlienVault OSSIM vs. OpenText Enterprise Security Manager

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