Today's organizations rely increasingly on the Internet for access to information and resources. Businesses, schools and government agencies provide their employees, students and partners with access not only to internal networks, but to the outside world as well. The benefits of the Internet are great, but so are the risks. The opportunity to connect to Web sites that contain information and images that are objectionable or even illegal can leave organizations vulnerable to legal liabilities and unwanted security risks. Unrestricted Web access and the use of instant messaging (IM) and peer-to-peer (P2P) applications compete for employees' time and can result in tremendous losses in productivity and exposures to unwanted worms, trojans and viruses.