Cyberspace is the interdependent network of IT infrastructures including the Internet, telecommunications networks, computer systems, and embedded processors and controllers in critical industries. Common usage of the term cyberspace refers to the "virtual" environment of information and interactions between people.

Cyberspace underpins almost every facet of modern society and provides critical support for the U.S. economy, civil infrastructure, public safety, and national security. IT has transformed the global economy and connected people and markets in ways never imagined.