olemus
ISO Guide 73, ISO/IEC 27000:
riski või riskide kombinatsiooni suurust väljendav
tagajärgede ja nende võimalikkuse kombinatsioon

piltlikult
https://d14.s3-eu-west-1.amazonaws.com/images/Matrix_jpg_uWonLV1i.jpg

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

http://www.mass.gov/anf/research-and-tech/cyber-security/security-for-state-employees/risk-assessment/risk-assessment-guideline.html

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

https://www.cnil.fr/sites/default/files/typo/document/CNIL-ManagingPrivacyRisks-Methodology.pdf