Cyber Resilience Definitions
Here's a curated list of the most reputable formal definitions of Cyber Resilience I could identify to date.
National Institute of Standards and Technology (NIST)
The ability to anticipate, withstand, recover from, and adapt to adverse conditions, stresses, attacks, or compromises on systems that use or are enabled by cyber resources. Cyber resiliency is intended to enable mission or business objectives that depend on cyber resources to be achieved in a contested cyber environment. Source: https://csrc.nist.gov/glossary/term/cyber_resiliency
Financial Stability Board (FSB)
The ability of an organisation to continue to carry out its mission
by anticipating and adapting to cyber threats and other relevant
changes in the environment and by withstanding, containing and
rapidly recovering from cyber incidents.
Source: https://www.fsb.org/wp-content/uploads/P121118-1.pdf
European Central Bank (ECB)
Cyber resilience refers to the ability to protect electronic data and systems from cyberattacks, as well as to resume business operations quickly in case of a successful attack.
Source: https://www.ecb.europa.eu/paym/cyber-resilience/html/index.en.html
MITRE
Cyber resiliency (also referred to as cyber resilience) is the ability to anticipate, withstand, recover from, and adapt to adverse conditions, stresses, attacks, or compromises on cyber resources.
Source: https://www.mitre.org/sites/default/files/PR_17-1434.pdf
Bank for International Settlements, CPMI-IOSCO
An FMI’s (Financial Market Infrastructure) ability to anticipate, withstand, contain and rapidly recover from
a cyber attack.
Source: https://www.bis.org/cpmi/publ/d146.pdf
Australian Securities and Investments Commission (ASIC)
Cyber resilience is an
organisation’s capacity to prepare
for, respond to and recover from
cybersecurity events.
Source: https://download.asic.gov.au/media/5416529/rep651-published-18-december-2019.pdf
Stockholm University
Cyber resilience refers to an entity's ability to continuously deliver the intended outcome, despite adverse cyber events.
Source: https://en.wikipedia.org/wiki/Cyber_resilience