olemus
ISO 31073, ISO/IEC 27000:
riski või riskide kombinatsiooni suurust väljendav
tagajärgede ja nende võimalikkuse kombinatsioon
= magnitude of a risk or combination of risks, expressed in terms of the combination of consequences and their likelihood

piltlikult
https://duckduckgo.com/?q=risk+matrix&t=h_&iax=images&ia=images

ülevaateid
https://www.faa.gov/about/initiatives/maintenance_hf/library/documents/media/hfacs/4_riskassessment.pdf

https://en.wikipedia.org/wiki/Risk_assessment

https://ehealthresearch.no/files/documents/Appendix-Definitions.pdf

näiteid
https://itsecurity.uiowa.edu/resources/everyone/determining-risk-levels

https://security.calpoly.edu/content/policies/asset-risk-level-examples

https://www.drupal.org/drupal-security-team/security-risk-levels-defined

https://pdfs.semanticscholar.org/a364/63530db8c4050dd1d2765533e191fdf69de6.pdf