Comodo Internet Security (CIS), developed by Comodo Group, is an all-in-one Internet Security solution available for Microsoft Windows XP (SP2) and Vista. Comodo Internet Security currently includes Firewall, HIPS and antivirus software, and an optional application known as SafeSurf to help protect against buffer overflow attacks when surfing the Internet. All CIS components are optional when installing allowing the user to choose which components they wish to install. The components can be activated/deactivated by user preference.