A key risk indicator (KRI) is a metric that provides an early warning of potential exposure to a risk. A KRI should be relevant, measurable, timely, and actionable. The most important factor in an organization's selection of a KRI is the criticality of information, which means that the KRI should reflect the value and sensitivity of the information assets that are exposed to the risk. For example, a KRI for data breach risk could be the number of unauthorized access attempts to a database that contains confidential customer data. The criticality of information helps to prioritize the risks and focus on the most significant ones. Reference: https://www.isaca.org/credentialing/cism https://www.wiley.com/en-us/CISM+Certified+Information+Security+Manager+Study+Guide-p-9781119801948