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Fortinet FortiSIEM vs OpenText Enterprise Security Manager comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 19, 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

Fortinet FortiSIEM
Ranking in Security Information and Event Management (SIEM)
7th
Average Rating
7.6
Reviews Sentiment
6.5
Number of Reviews
74
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
97
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 Fortinet FortiSIEM is 3.3%, up from 3.0% 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

Oliver Jackson - PeerSpot reviewer
Systems monitoring enhanced by firewall and intrusion detection features
My primary use case for Fortinet FortiSIEM is systems monitoring and alerting. I use it for standard functions like log monitoring, incident detection, and notification.  My customers are mostly medium-sized enterprises ranging from engineering companies, mining companies, independent schools, and…
Gaurav Ranade - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"The solution’s IP database is awesome."
"Some of our customers who use this solution have seen improvement in their connection with load balancing on both connections."
"The tool's most valuable feature stems from the fact that I can see a complete analysis, like all the incidents that have happened, and it detects everything in real-time."
"The Threat Hunting feature provides complete traffic analysis."
"The most fascinating aspect of FortiSIEM is its integration with the MITRE ATT&CK framework."
"The advanced agents used to collect logs have been most valuable. We have also made use of the advanced intelligence this solution offers."
"The most valuable feature is the ability to view all the network events on a single pane and find the point of contact or point of the incident."
"I like FortiSIEM because it integrates natively with our other Fortinet solutions and the Fortinet Fabric, but it also integrates with Cisco, Palo Alto and other security fabrics."
"It has absolutely improved the efficiency of our security team. We use it internally as well. It is such a powerful tool that our internal security team became a customer of our ArcSight managed service."
"The solution offers very good monitoring."
"I value the event correlation of this product."
"It prevented my users from getting infected by ransomware. It can also pinpoint the story behind every virus or network attack to our environment."
"It is a very useful tool for intelligence building because it has many use cases and many rule sets."
"It gives better overall visibility. Before, we didn't have a unified system for managing security alerts. ArcSight introduced various alerts, giving us a better visibility of potential problems."
"The solution is pretty stable."
"Usability is the most valuable feature. The accessibility is quite good."
 

Cons

"Fortinet FortiSIEM could improve to extend to several locations or sites."
"There could be improvements like introducing some solutions directly into FortiSIEM to avoid the need for separately purchasing additional tools like FortiStore."
"The only drawback is the licensing model. It can get expensive if you want to integrate more solutions."
"The graphs on the user interface could be improved as we often experience glitches."
"Fortinet FortiSIEM could improve by having better integration and extensions. This would benefit by allowing us to give more rules."
"The reporting feature is not very attractive for the upper management and I am not able to perform complex/nested queries."
"The dashboards need to be improved. It gives you so much detail, but sometimes too much detail, especially to an executive, it's too much."
"Does not have load-sharing or high-availability, and these are important things to implement. I can do the same things in another way, but not naturally having these features makes it complicated."
"The user interface of ArcSight Enterprise Security Manager could improve. It is not very good. Additionally, they could integrate the web interface better."
"ArcSight ESM needs to improve performance, user interface, and automation."
"They need to develop NetFlow appliances that can be installed in the customer network on span ports, collect NetFlow, and send it to ArcSight without relying on the devices' NetFlow capability and their position in the network."
"The roadmap is not clear."
"ArcSight ESM is not easy to use and it should be integrated with other tools that have infrastructure capabilities."
"ArcSight is incredibly complex when configuring and deploying, and if your organization doesn't know what they want and what they need, ArcSight will be a challenge for them."
"The product should include a lot more predefined scenarios so the adopted company will have knowledge and a broader skill set in security and network."
"Sometimes, it takes ages to get an issue resolved. I have ArcSight experience, so I normally try to fix things on my own or find a workaround, but it's tough to get support when I need it."
 

Pricing and Cost Advice

"The price of Fortinet FortiSIEM was reasonable compared to other solutions."
"Pricing is determined based on the customer's budget."
"The tool is really expensive. For what the tool does for our team, the price is fair."
"The solution is available for both, perpetual and subscription licenses."
"Its price can be better. We are Fortinet partners, so we can get discounts, but its price can be an issue at the beginning for others. There is a licensing scheme for every case. There are three licensing schemes that we can choose from."
"Manageable, however would be better as pay as you go versus CapEX."
"The price of Fortinet FortiSIEM is a lot less when compared to other solutions."
"Pricing is acceptable for more than 90% of our customers, as they normally get discounts."
"The product licenses are inexpensive."
"We're paying a fee for an MSSP, and the cost of the total cost of ArcSight ESM was approximately three to four million dollars a year. The price was less than similar solutions. We did not have additional fees."
"The cost of the solution is not very high, although hiring a qualified analyst to work with the product is expensive."
"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."
"Aggregation can help a lot in pushing down licensing costs."
"There is a license required for this solution."
"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."
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Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
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Comparison Review

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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
Computer Software Company
14%
Financial Services Firm
10%
Comms Service Provider
7%
Government
7%
Financial Services Firm
19%
Computer Software Company
13%
Manufacturing Company
9%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Fortinet FortiSIEM?
Fortinet FortiSIEM needs to provide better API integrations to users.
What is your experience regarding pricing and costs for Fortinet FortiSIEM?
The pricing is reasonable, which is why it is preferred by government customers. Windows agent licenses cost around 3,000 Rupees per device per year.
What needs improvement with Fortinet FortiSIEM?
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management. Currently, to manage repetitive incidents or for remediation, I need to use a separate softw...
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.
 

Also Known As

FortiSIEM, AccelOps
Micro Focus ArcSight, HPE ArcSight, ArcSight
 

Overview

 

Sample Customers

FortiSIEM has hundreds of customers worldwide in markets including managed services, technology, financial services, healthcare, and government. Customers include Aruba Networks, Compushare, Port of San Diego, Cleveland Indians, Infoblox, Healthways, and Referentia.
Lake Health, U.S. Department of Health and Human Services, Bank AlJazira, Banca Intesa, and Obrela.
Find out what your peers are saying about Fortinet FortiSIEM vs. OpenText Enterprise Security Manager and other solutions. Updated: July 2025.
861,524 professionals have used our research since 2012.