1. Any process, program, or protocol relating to the use of the Internet or an intranet, automatic data processing or transmission, or telecommunication via the Internet or an intranet; and
2. any matter relating to, or involving the use of, computers or computer networks. (Cybersecurity Act of 2009).
Source: Terms & Definitions of Interest for DoD Counterintelligence Professionals, Office of the National Counterintelligence, https://www.dni.gov/files/NCSC/documents/ci/CI_Glossary.pdf
3. Relating to, involving, or characteristic of computers, computer networks, information and communications technology (ICT), virtual systems, or computer-enabled control of physical components.
Source: U.S. Cyberspace Solarium Commission, March 2020, https://subscriber.politicopro.com/f/?id=00000170-c638-d8f7-a7f1-f63b33510000