Explore the intricacies of distinguishing between human-discovered and machine-detected web application vulnerabilities in this 25-minute conference talk from BSidesSF 2020. Delve into Vanessa Sauter's presentation, which draws inspiration from the Voight-Kampff test to create a filtering system for vulnerability discoveries. Learn about the importance of identifying discovery methods, the strengths of automated scanners, and the unique value of human expertise in cybersecurity. Examine case studies, including insights from Uber's bug bounty program, and understand the nuances of various vulnerability types such as weak workflow enforcement, race conditions, and chained exploits. Engage in a thought-provoking debate on the roles of humans and machines in the ever-evolving landscape of web application security.