Definition(s)
Key Resource
A publicly or privately controlled asset necessary to sustain continuity of government and/or economic operations, or an asset that is of great historical significance.
From: NCSD glossary.
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