GFI is a leading developer of content security, network security and messaging software. Its product range includes GFI MailSecurity email content/exploit checking and anti-virus software; GFI MailEssentials server-based anti-spam software; GFI MailArchiver email archiving solution; GFI FAXmaker fax server software; GFI Network Server Monitor that alerts about and corrects network and server issues; GFI LANguard Network Security Scanner (N.S.S.) that performs network security auditing and patch management; GFI LANguard Security Event Log Monitor (S.E.L.M.) for network-wide event log monitoring and management; and GFI LANguard Portable Storage Control (P.S.C.) for network-wide control of removable media.

GFI is a market leader thanks to its ability to innovate and adopt key technologies early on. For example: GFI MailEssentials was the first server-based anti-spam software to include Bayesian filtering. GFI MailSecurity was the first software to tackle the email security problem more aggressively via its exploit checking and Trojan checking features. GFI FAXmaker led the way with its seamless email and network integration. GFI LANguard N.S.S. proved revolutionary in the security scanning market. GFI holds several patents pertaining to network and email security.