ISO 27001 RISK ASSESSMENT TABLE
Implement risk register using catalogues of vulnerabilities and threats.
Get it now 
ISO 27001 RISK ASSESSMENT TABLE
Implement risk register using catalogues of vulnerabilities and threats.
Get it now
ISO 27001 RISK ASSESSMENT TABLE
Implement risk register using catalogues of vulnerabilities and threats.
Get it now
Answer: The probability of occurrence can be identified by means such as historical data (either from the own organization or from available data from organization's industry), statistical models, or by expert opinion.
This article may provide you more information about identification of probability of occurrence: - How to assess consequences and likelihood in ISO 27001 risk analysis https://advisera.com/27001academy/iso-27001-risk-assessment-treatment-management/#assessment
2. How to identify the Chance of non-detection ?
Answer: For equipment you may find information about failure rates (or false negatives) on documentation provided by manufacturers. Regarding procedural controls, tests and simulations involving users, technical staff can provide information to help identify chances of a procedural control fail without detection.
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Jul 21, 2018