

Find out in this report how the two Security Information and Event Management (SIEM) solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.
The platform has resulted in time saved and reduces mean time to response, making it a great platform.
The customer support for Fortinet FortiSIEM is excellent.
Local tech support is available, however, for more critical or technical issues, we depend on the OEM directly, especially when it comes to on-prem solutions.
There is a knowledgeable, though small, team of support engineers around the world.
Fortinet FortiSIEM is highly scalable.
Fortinet FortiSIEM's scalability is excellent, and it is also easy to configure, maintain, and operate.
At any point in time, when network devices increase or there is a change in the infrastructure, we can add more workers and collectors to expand our infrastructure setup.
If the user interface isn’t presenting data well, it becomes difficult to manage when scaling.
It stabilizes itself in an appropriate time, so its uptime is good.
Some stability issues occur, but Fortinet's technical support team provides assistance.
These issues may cause unusual errors and user interface issues.
It is very stable.
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management.
Recently, they revised it to a subscription-based, all-inclusive license.
The built-in APIs in Fortinet FortiSIEM are somewhat lacking and could be improved for better integration with external ITSM products.
Many tools have poor user interfaces, making them hard to manage and navigate.
The GUI could be improved. It's a bit too basic.
Setting it up for oneself as an enterprise-licensed product can be quite expensive.
Windows agent licenses cost around 3,000 Rupees per device per year.
My experience with pricing, setup cost, and licensing for Fortinet FortiSIEM is wonderful, as it offers an excellent license compared to other vendors.
We are using the free, open-source version.
The pricing for the Nagios XI product is good and better than other solutions.
I find the real-time monitoring and correlation capabilities effective for security alerts.
It provides extensive logging and record-keeping for internal networks, cloud applications, and services as well as perimeter physical network security.
Reliability and scalability have helped me in my work, especially because the license for Fortinet FortiSIEM is excellent from a cost perspective, and we can add more collectors as we expand.
Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
The alerting system is very effective.
| Product | Market Share (%) |
|---|---|
| Fortinet FortiSIEM | 2.7% |
| Splunk Enterprise Security | 7.1% |
| Wazuh | 6.4% |
| Other | 83.8% |
| Product | Market Share (%) |
|---|---|
| Nagios XI | 3.1% |
| Zabbix | 6.8% |
| Datadog | 4.0% |
| Other | 86.1% |

| Company Size | Count |
|---|---|
| Small Business | 34 |
| Midsize Enterprise | 22 |
| Large Enterprise | 24 |
| Company Size | Count |
|---|---|
| Small Business | 22 |
| Midsize Enterprise | 17 |
| Large Enterprise | 21 |
FortiSIEM (formerly AccelOps 4) provides an actionable security intelligence platform to monitor security, performance and compliance through a single pane of glass.
Companies around the world use FortiSIEM for the following use cases:
Nagios XI provides monitoring of all mission-critical infrastructure components, including applications, services, operating systems, network protocols, systems metrics, and network infrastructure. Third-party add-ons provide tools for monitoring virtually all in-house and external applications, services, and systems.
Nagios XI uses a powerful Core 4 monitoring engine that provides users with the highest levels of server monitoring performance. This high degree of performance enables nearly limitless scalability and monitoring powers.
With Nagios XI, stakeholders can check up on their infrastructure status using the role-based web interface. Sophisticated dashboards enable access to monitoring information and third-party data. Administrators can easily set up permissions so users can only access the infrastructure they are authorized to view.
Nagios XI Benefits and Features
Some of the benefits and top features of using Nagios XI include:
Reviews from Real Users
Nagios XI stands out among its competitors for a number of reasons. Several major ones are its integration options and monitoring abilities, as well as its alerting features.
David P., a senior DevOps engineer at EML Payments Ltd, writes, “We use Nagios as a network discovery tool. We use Nagios to maintain our uptime statistics and to monitor our services. It has allowed us to be much more sophisticated in our monitoring and alerting.”
An IT-OSS manager at a comms service provider notes, “Nagios XI has a custom API feature, and we can expose custom APIs for our integration. This is a great feature.”
We monitor all Security Information and Event Management (SIEM) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.