Explore a comprehensive analysis of email encryption usage across an entire university in this 19-minute IEEE conference talk. Delve into the findings of a 27-year study encompassing 81 million opportunities for secure communication. Learn about the patterns, challenges, and implications of email encryption adoption within an academic setting. Gain insights from the research conducted by experts from Leibniz University Hannover, Freie Universität Berlin, Max Planck Institute for Security and Privacy, and CISPA as they present their investigation into the long-term trends and factors influencing the use of email encryption technologies in a large-scale institutional environment.