The problem with traditional, perimeterbased security methods is twofold: First, they can stifle the educational mission that district networks were created to encourage. Firewalls can thwart hackers, but they can also prevent staff and students from accessing online tools or information. Second, these approaches tend to provide inadequate defenses against modern security threats, such as USB devices and memory sticks, which are potential sources of infection, as well as handy and easily concealed storage for data theft; instant messaging, through which a variety of suspect files may be introduced to the network; and peer-to-peer file sharing programs (Kazaa, Gnutella, BitTorrent), which clog up the system and can not be blocked at the firewall. The most important thing to remember about the process of securing data, is that it is in fact, a "process," and not a product. Security is not something that comes out of a box and it is not something that is "in" a box.