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Measuring Information Security Risk. Metricon 1 1 August 2006 Bob Blakley blakley@burtongroup.com. Measurements are not Metrics.
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Measuring Information Security Risk Metricon 1 1 August 2006 Bob Blakley blakley@burtongroup.com
Measurements are not Metrics • Metricsare a system of parameters or ways of quantitative and periodic assessment of a process that is to be measured, along with theprocedures to carry out such measurementand theprocedures for the interpretationof the assessmentin the light of previous or comparable assessments. • - Wikipedia
Measuring Risk estimate probability and consequence Mitigate estimate log(probability) and consequence Mitigate & Recover estimate worst-case consequence Recover high impact estimate probability and consequence Mitigate ignore ignore low impact common uncommon rare
If you can’t measure one thing, you might be able to measure two
Risk Correlates: Vital Signs It’s hard to make you sick without changing your pulse, temperature, or blood pressure.