Explore the fundamentals of measuring cyber risk using Open FAIR in this conference talk from Louisville Infosec 2017. Delve into cybersecurity leadership, executive-level information, and quality quantitative data for informed decision-making. Learn about risk analysis models, comparing qualitative and quantitative approaches, and understand key concepts like frequency vs. probability and threat event frequency. Examine a case study, explore the Open FAIR ontology, and gain insights into histogram analysis. Discover practical tips for implementing Open FAIR, including scenario-based analysis and navigating high-trust vs. low-trust environments. Gain valuable knowledge to enhance your organization's cyber risk assessment capabilities.