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OpenText Enterprise Security Manager vs SentinelOne Singularity AI SIEM comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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)
26th
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
98
Ranking in other categories
No ranking in other categories
SentinelOne Singularity AI ...
Ranking in Security Information and Event Management (SIEM)
23rd
Average Rating
8.6
Reviews Sentiment
6.1
Number of Reviews
5
Ranking in other categories
AI Observability (22nd)
 

Mindshare comparison

As of March 2026, in the Security Information and Event Management (SIEM) category, the mindshare of OpenText Enterprise Security Manager is 1.5%, up from 1.1% compared to the previous year. The mindshare of SentinelOne Singularity AI SIEM is 1.6%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
SentinelOne Singularity AI SIEM1.6%
OpenText Enterprise Security Manager1.5%
Other96.9%
Security Information and Event Management (SIEM)
 

Featured Reviews

DayaramGoyal - PeerSpot reviewer
Vice President, Technology at Cache Digitech Pvt Ltd.
Integration shines but threat detection and technical support need attention
Regarding threat detection capabilities, I think OpenText Enterprise Security Manager covers the MITRE ATT&CK framework at an average level, and on a scale of one to ten, I would rate it only five. They have to improve in those areas in terms of threat detection capabilities. For ArcSight, they need to give the complete package, with UBA being part of that. They have added it, but I question what capabilities are there, especially on the SOAR side where they have to improve because the SIEM was very strong. For the SOAR side, because SIEM was very strong when they were earlier launched, but for SOAR, they were integrating with third-party solutions initially, and then they built the capability. They have acquired some company, but it is not up to that potential. They slowly and gradually lost that ground to Splunk, QRadar, and other companies, so when anybody talks about the full capabilities, they are not thinking about Micro Focus as of now. I would desire additional features in OpenText Enterprise Security Manager, especially on the SOAR side, and maybe on the UBA side, as threats intel and all, which are part of bundled solutions. Those are the areas they have to improve so that customers can trust and enhance those things, and maybe the customers will feel they should go for this product. As of now, if we are evaluating our own scenario, we are not even thinking about it. Earlier, that was not the scenario when they were selling this SIEM solution in the market; everybody was thinking OpenText was the default option, but now, if you're looking for a complete solution stack, nobody is even considering it.
Prince Joseph - PeerSpot reviewer
Group Chief Information Officer at NeST Information Technologies Pvt Ltd
Advanced AI-driven monitoring has strengthened investigations and now prioritizes critical threats
I would not say there is anything that could be better in SentinelOne Singularity AI SIEM; I think we have seen something unique in the product. This product has the potential to add more SOC functionality on top of its SIEM, which can automate a few more things because I have the information there. I need to do what I would call security agents or agentic AI to be built on top; it can take care of a lot more analysis and actions. Maybe licensing cost can also be looked at and reduced. We are still to see the automated feature work a little bit more; we are not really using it to the full extent.

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 ArcSight ESM are ease of use and readily usable components."
"Feature-rich solution which provides better network visibility for improved security"
"The stability of the solution is very good; it's pretty perfect, actually, as we don't have crashes, it doesn't freeze, there aren't bugs or glitches, and it's completely reliable."
"The most valuable features are flexible setup of the architecture and large coverage of devices."
"Its versatility when it comes to vendor support, the powerful ESM and logger tools, the Alert and Case Tracking mechanism, the Express all-in-one component for small businesses, the efficient NTP for blocking identified threats, and the ArcSight Flex Connector Development module for unsupported vendor products make this solution extremely capable."
"The solution enables you to monitor logs and to analyze data, but you can also use additional add-ins such as reputation services that can integrate ArcSight ESM with tipping point IPS."
"We use this product for managed SIEM services and its stability and maturity helps with standard deployments (hardly any surprises)."
"What I found most valuable in ArcSight Enterprise Security Manager (ESM) is its good integration with third-party products. The solution also has good core capabilities."
"SentinelOne Singularity AI SIEM's AI-powered analytics does affect our SOC's ability to reduce false positives; that is one of the biggest advantages because the manpower that I have is limited."
"Overall, I would assess the overall security posture after implementing SentinelOne Singularity AI SIEM as significantly better."
"After using SentinelOne Singularity AI SIEM, it has reduced our incident response time by forty to fifty percent compared to other tools."
"AI-driven capabilities will give me real-time detection and will protect my autonomous AI interruption."
"When they face attacks such as ransomware and are dissatisfied with their existing solutions, they switch to SentinelOne Singularity AI SIEM, which is quite good in detecting unknown threats, cleaning the system, and handling ransomware."
 

Cons

"The only concern is that AI needs to be integrated"
"The solution could be more stable."
"Customer service and support is our biggest challenge."
"OOB content is limited Microfocus should release the smart connector update on quaterly basis."
"The hardware requirements are very high and the solution has poor stability when they are not met."
"The solution could be more stable."
"The technical support was not very good. They are slow and not very efficient."
"The UI interface is somewhat complex and needs to be simplified."
"At the moment, I feel the pricing is a little bit on the higher side, but the tool is positioned in a place where risk is very high, and we do not want to take chances, so we are prepared to pay the premium."
"SentinelOne Singularity AI SIEM has some performance and reliability issues that need improvement."
"It is quite good, but the only downside is that it is costly."
"In AI SIEM, the areas that have room for improvement are the parsers for third-party integrated data or for third-party data sources that are not native integrations, which could be made a bit easier."
"Another area for improvement is that the product is somewhat expensive. Pricing could be improved as well."
 

Pricing and Cost Advice

"ArcSight can be a little bit expensive because of the area that we work in and the cost. Licensing is mostly on a yearly basis, not monthly."
"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."
"Customers without a ton of resources to dedicate to deployment may be better served by a managed ArcSight service."
"​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.​"
"ArcSight is pretty expensive compared with its competitors. I believe that is fine as it provides value."
"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 ESM is an affordable solution, it cost approximately $200,000 for three years. This price was at a substantial discount."
"HPE ArcSight pricing might be more expensive than other SIEM solutions, but in my opinion it has powerful features and great flexibility in developing complex use cases."
Information not available
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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
Marketing Services Firm
11%
Manufacturing Company
9%
Financial Services Firm
7%
Performing Arts
7%
Healthcare Company
9%
Comms Service Provider
9%
Construction Company
9%
Transportation Company
5%
 

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 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 needs improvement with ArcSight Enterprise Security Manager (ESM)?
Regarding threat detection capabilities, I think OpenText Enterprise Security Manager covers the MITRE ATT&CK framework at an average level, and on a scale of one to ten, I would rate it only f...
What needs improvement with SentinelOne Singularity AI SIEM?
In AI SIEM, the areas that have room for improvement are the parsers for third-party integrated data or for third-party data sources that are not native integrations, which could be made a bit easi...
What is your primary use case for SentinelOne Singularity AI SIEM?
Our use case with SentinelOne Singularity AI SIEM is primarily AI observability for a large part. We are using it for SIEM purposes as well. Prior to the inclusion of Purple AI, it was exclusively ...
What advice do you have for others considering SentinelOne Singularity AI SIEM?
My impression of the AI-driven threat detection capabilities of SentinelOne Singularity AI SIEM is great. I am really looking forward to the upcoming feature with agentic incident investigation. If...
 

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.
Information Not Available
Find out what your peers are saying about OpenText Enterprise Security Manager vs. SentinelOne Singularity AI SIEM and other solutions. Updated: March 2026.
885,311 professionals have used our research since 2012.