SUNNYVALE, Calif., March 27, 2006 - Fortinet - the pioneer and leading provider of multi-threat security solutions - today announced that IDC research data confirms it is the largest private security appliance vendor among tracked companies and is the leader in several key categories of the unified threat management market.

Data in IDC's Q4 2005 Worldwide Quarterly Security Appliance Tracker confirmed:

• Fortinet is the world's largest private vendor in the security appliance market across all categories that IDC measures in the security appliance market--UTM, IDP/IPS and VPN/firewall.
• Fortinet was the fastest growing vendor in the high-end UTM market for 2005.
• Fortinet led the mid-range UTM appliance segment (from $6,000 to $9,900 price band) for all of 2005.

In regional results, Fortinet led the entire UTM market in Western Europe and Asia Pacific (including Japan) for 2005, based on strong revenues and success in all market segments.

"Fortinet, as the first provider of this integrated functionality, is seeing rapid growth in the mid- and high-end markets," said Ken Xie, founder and CEO of Fortinet. "Our business is being driven by enormous demand from enterprises of all sizes, service providers, and carriers that are increasingly recognizing that no other vendor can offer the security, performance and cost advantages that Fortinet provides."

IDC defines UTM security appliance products as those that integrate multiple security features within one device, including network firewalling, network intrusion detection and prevention (IDP), and gateway anti-virus. Fortinet pioneered the UTM market and has held the confirmed worldwide leadership position for two consecutive years. Through its family of award-winning FortiGate™ multi-threat security systems, Fortinet offers best-in-class security applications and services - including firewall, antivirus, virtual private network (VPN), intrusion prevention (IPS), anti-spam, Web content filtering and traffic shaping -- individually, or combined as a UTM solution.

For more information on Fortinet solutions, please visit: www.fortinet.com/products.