Protecting the vast complexity of computer systems, networks, devices, and data depended upon by modern society is where cybersecurity comes into play.

This broad category of products, services, technologies, practices, processes and procedures, strategies, devices concerns itself with preventing unauthorised or criminal use of information technology assets of all kinds. As multifaceted as information technology itself is, so too is the cybersecurity subset of the industry broken down into multiple areas of specialization.

Major cybersecurity types include critical infrastructure security, application security, network security, cloud security, and device security.