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OpenText Enterprise Security Manager vs Stellar Cyber Open XDR comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 2025

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

OpenText Enterprise Securit...
Ranking in Security Information and Event Management (SIEM)
21st
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
98
Ranking in other categories
No ranking in other categories
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
48th
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
User Entity Behavior Analytics (UEBA) (24th), Endpoint Detection and Response (EDR) (60th), Network Traffic Analysis (NTA) (20th), Security Orchestration Automation and Response (SOAR) (24th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (34th), Identity Threat Detection and Response (ITDR) (20th)
 

Mindshare comparison

As of December 2025, in the Security Information and Event Management (SIEM) category, the mindshare of OpenText Enterprise Security Manager is 1.6%, up from 1.2% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.4%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
OpenText Enterprise Security Manager1.6%
Stellar Cyber Open XDR1.4%
Other97.0%
Security Information and Event Management (SIEM)
 

Featured Reviews

NM
Senior Security Engineer at Valuepoint Systems
Interpreting data effectively despite challenges in integration and support
If someone lacks the budget for a new SIEM tool with advanced capabilities, I would recommend ArcSight Enterprise Security Manager (ESM). However, if they have the budget, I would suggest looking into other options. Overall, I would give ArcSight Enterprise Security Manager (ESM) a rating of seven out of ten.
JC
Global Director, Commercial Operations at Promasecure LLC
Automated security monitoring increases efficiency, but market visibility needs improvement
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to cater to everyone effectively. While I have not encountered significant drawbacks so far, market penetration is challenging due to the product's newness, despite its flexibility and customization features. I find their user interface to be quite good.

Quotes from Members

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

Pros

"The webpage algorithm is the most valuable feature because it was the fastest feature for searching the logs, events, and correlation."
"Once the rules are defined, it is capable of detecting minute changes in the systems, which are effectively based on the entries in the log.​"
"I am satisfied with the solution's stability."
"The correlation feature is good."
"Support is very good."
"The solution offers very good monitoring."
"On the positive side, ArcSight ESM's performance was excellent. It was very fast when writing queries. It provided good performance monitoring and had built-in rules to show which rules triggered most often and impacted performance. This performance monitoring was well-implemented."
"This process has helped to improve our organization because we have centralized the intra-group security equipment logs."
"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."
"It can integrate with almost any cybersecurity tool available in the market."
 

Cons

"ArcSight ESM could improve by adding more features and documentation. There needs to be more documentation."
"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."
"There could be more API features for extracting logs on different devices included in the product."
"When we need to consume old events, we have to wait for a long time. ArcSight should improve the database capability to reply to queries faster. It would also be interesting if they implemented network visibility. For example, they could add a feature like NetWitness with a model just for looking through the packets."
"The security area has room for improvement."
"The API integration could be better, and I'd like to see more machine-learning capabilities in the future."
"They also could improve the product by integrating user and identity behavior analytics."
"Customer service and support is our biggest challenge."
"Support is an issue because they have a limited number of resources."
"I would rate the stability at about five to six. The platform requires some fine-tuning, especially when integrating data sources and creating connectors."
 

Pricing and Cost Advice

"The pricing model is expensive compared to open-source alternatives."
"The cost of the solution is not very high, although hiring a qualified analyst to work with the product is expensive."
"ArcSight ESM is an affordable solution, it cost approximately $200,000 for three years. This price was at a substantial discount."
"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."
"Pricing is good, I'd rate the pricing a seven out of ten, with ten being low price. It's better than Splunk and IBM QRadar because their pricing is based on EPS."
"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."
"​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.​"
"It’s a single license platform."
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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
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…
 

Top Industries

By visitors reading reviews
Manufacturing Company
11%
Financial Services Firm
10%
Computer Software Company
10%
Performing Arts
9%
Manufacturing Company
12%
Computer Software Company
11%
Comms Service Provider
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business37
Midsize Enterprise14
Large Enterprise57
No data available
 

Questions from the Community

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 ...
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.
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.
What is your experience regarding pricing and costs for Stellar Cyber Open XDR?
Pricing is a major benefit of Stellar Cyber Open XDR. I rate it between three and four on the cost scale. It offers functionalities at a significantly lower cost than rival products, enabling me to...
What needs improvement with Stellar Cyber Open XDR?
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to ca...
What is your primary use case for Stellar Cyber Open XDR?
I use Stellar Cyber Open XDR ( /products/stellar-cyber-open-xdr-reviews ) as a 24/7 security monitoring tool, especially for customers with large and medium networks. It eliminates the need for a d...
 

Also Known As

Micro Focus ArcSight, HPE ArcSight, ArcSight
No data available
 

Overview

 

Sample Customers

Lake Health, U.S. Department of Health and Human Services, Bank AlJazira, Banca Intesa, and Obrela.
Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City
Find out what your peers are saying about OpenText Enterprise Security Manager vs. Stellar Cyber Open XDR and other solutions. Updated: December 2025.
879,310 professionals have used our research since 2012.