Explore the intersection of cybersecurity, behavioral economics, and social engineering in this keynote address from BSidesLV 2017. Delve into the concept of "Defensible Social Architecture" as it relates to big data, behavioral economics, bot networks, and malicious actors. Examine modern detection systems, data analysis techniques, and user preferences in the context of cybersecurity. Investigate the role of behavioral economics and choice architecture in shaping security policies and practices. Learn about opinionated design, microeconomics, and the application of economic principles to enhance security measures. Discuss the security poverty line, risk assessment, uncertainty management, and competitive strategies in the evolving landscape of digital threats and defenses.