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 #11 with an average rating of 7.3, while OpenText is ranked #22 with an average rating of 7.0. AT&T holds a 3.2% mindshare in SIEM, compared to OpenText’s 1.4% 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

5,143 Views
5,040 Comparison Views

80% willing to recommend

OpenText Enterprise Securit...

Read 98 OpenText Enterprise Security Manager reviews

2,541 Views
2,414 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)

11th

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)

22nd

Average Rating

7.8

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of August 2025, in the Security Information and Event Management (SIEM) category, the mindshare of AlienVault OSSIM is 3.2%, down from 4.3% compared to the previous year. The mindshare of OpenText Enterprise Security Manager is 1.4%, up from 1.3% 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 most valuable features of AlienVault OSSIM are case management, ease of configuration, and investigation."

"The solution is free to use."

"The product is easy to use."

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

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

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

More AlienVault OSSIM pros

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

"The real-time analysis adds value."

"SmartConnector: Normalization parses raw logs and converts them into CEF (common event format). This is the core of the product."

"It makes maintenance very easy."

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

"ArcSight ESM provides us the flexibility to write our own passwords and customize the solution. It lets us search and log a variety of SmartConnectors. It has 480-plus SmartConnectors."

"We use ArcSight ESM for log analysis and security alerts. It warns us of threats and then helps us conduct a forensic investigation of a cyber attack or internal incident after it happens."

"The solution offers very good monitoring."

More OpenText Enterprise Security Manager pros

Cons

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

"The user interface needs to be friendlier across the board."

"I suggest more in-built rules based on modern threats and environments to make it a more competitive solution."

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

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

"The correlation engine needs to be improved."

"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."

"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."

More AlienVault OSSIM cons

"ArcSight ESM could improve by adding more features and documentation. There needs to be more documentation."

"I would like to have a feature that gives us an entire report listing what devices are integrated."

"The user interface of ArcSight Enterprise Security Manager could improve. It is not very good. Additionally, they could integrate the web interface better."

"We have pricing issues. ArcSight ESM may not be the most user-friendly option, and its interface is quite traditional. However, despite these aspects, we find it a good cybersecurity solution. It needs to improve the dashboards, documentation, and support as well."

"The dashboard looks a bit cumbersome."

"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."

"In other products, I have found that they use some kind of GUI that is drag and drop. While in ArcSight they use still scripting. They should keep scripting because some people prefer scripting but they should have the option for those who prefer using drag and drop."

"ArcSight ESM could improve the alerts for the storage capacities or actions."

More OpenText Enterprise Security Manager cons

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."

"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."

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

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

"AlienVault OSSIM is an open-source solution."

More AlienVault OSSIM pricing and cost advice

"Thanks to Micro Focus's licensing model, as an MSSP, we are able to see a complete return on our investment almost immediately."

"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."

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

"The pricing is great compared to others."

"It's a good price, it's one of the cheaper solutions."

"It is best to be an institutional buyer and directly contact the sales team, as they can provide over-the-top discounts for bulk orders."

"The product licenses are inexpensive."

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

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

15%

Comms Service Provider

11%

University

Educational Organization

Financial Services Firm

15%

Computer Software Company

13%

Manufacturing Company

11%

Educational Organization

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...

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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 71% of the time

USM Anywhere vs AlienVault OSSIM

Compared 6% of the time

Venusense USM vs AlienVault OSSIM

Compared 4% of the time

Elastic Security vs AlienVault OSSIM

Compared 4% of the time

Splunk Enterprise Security vs AlienVault OSSIM

Compared 4% of the time

More AlienVault OSSIM Competitors

Trellix ESM vs OpenText Enterprise Security Manager

Compared 18% of the time

IBM Security QRadar vs OpenText Enterprise Security Manager

Compared 11% of the time

Splunk Enterprise Security vs OpenText Enterprise Security Manager

Compared 10% of the time

Elastic Security vs OpenText Enterprise Security Manager

Compared 6% of the time

SurfWatch Labs SurfWatch vs OpenText Enterprise Security Manager

Compared 5% of the time

More OpenText Enterprise Security Manager Competitors

Product Reports

Buyer's Guide

AlienVault OSSIM

August 2025

Download AlienVault OSSIM product report

Buyer's Guide

OpenText Enterprise Security Manager

August 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

Find out what your peers are saying about AlienVault OSSIM vs. OpenText Enterprise Security Manager and other solutions. Updated: July 2025.

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