Appendix E - Probability of Ocurrence

There are differences between the probabilities for upside risk and downside risk (i.e. Opportunities and Threats). The most commonly used is the 3 x 3 matrix and these are shown below with some other options

Three by Three - Threats
Three by Three - Opportunities
Five by Five
Ten by Ten

An Introduction To Information, Network and Internet Security
Appendix E - Probability of Ocurrence There are differences between the probabilities for upside risk and downside risk (i.e. Opportunities and Threats). The most commonly used is the 3 x 3 matrix and these are shown below with some other options Three by Three - Threats Three by Three - Opportunities Five by Five Ten by Ten	The Security Practitioner An Introduction to Information Security
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