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Fortinet

Entry FortiGate with 1.1 Gbps threat protection and broad model range

Overview

FortiSIEM is Fortinet’s SIEM, sold as part of the company’s Security Fabric and SecOps product range. Fortinet, founded in the San Francisco Bay Area in 2000, says more than one million customers use its products, most of them for network firewalls[9]. FortiSIEM’s appeal is strongest for those customers: it ingests FortiGate and other Fortinet telemetry natively, while also collecting logs from third-party devices.

Fortinet states that FortiSIEM was recognised as a Challenger in the 2025 Gartner Magic Quadrant for SIEM, and was named a 2024 Gartner Peer Insights Customers’ Choice[9]. Distinctive capabilities include a built-in IT and OT configuration management database with passive and active discovery and continuous monitoring of asset health and performance, native SOAR automation, generative AI assistance, and multi-tenant operation used by providers of SIEM as a service[9]. Support is sold through Fortinet’s FortiCare services[9].

Fortinet reported revenue of US$6.8 billion for 2025[25]. Pricing is not published and is quoted through partners. The product is less frequently chosen by organisations without Fortinet networking, where competitors’ cloud-native analytics are often preferred.

Fortinet features

  • 5 Gbps firewall, 1.1 Gbps threat protection (50G)
  • Integrated SD-WAN
  • Integrated network controller
  • Variants with 5G, PoE, DSL or Wi-Fi
  • 200 site-to-site IPsec tunnels
  • Native ingestion of FortiGate and Fortinet Security Fabric data
  • Built-in configuration management database and discovery
  • Performance and availability monitoring alongside security

Fortinet pricing

Hardware plus security-service subscription bundles sold through partners; no list prices on Fortinet's pages.

Fortinet strengths and limitations

Strengths

  • Highest throughput per class in many comparisons
  • Wide model range from 30G to 90G
  • Built-in SD-WAN and network controller
  • Many connectivity variants
  • Strong fit for Fortinet-heavy networks
  • Covers operational technology as well as IT

Limitations

  • No SSL-VPN figures on the 50G data sheet
  • Services require subscription renewal
  • No published prices
  • Feature depth brings a learning curve
  • Positioned as a Challenger rather than a Leader by Gartner in 2025
  • Less compelling outside the Fortinet ecosystem

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