An electronic information and communications systems and services and the information contained therein.
Extended Definition: The information and communications systems and services composed of all hardware and software that process, store, and communicate information, or any combination of all of these elements: Processing includes the creation, access, modification, and destruction of information. Storage includes paper, magnetic, electronic, and all other media types. Communications include sharing and distribution of information.
Adapted from: NIPP.
Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards