Explore the security assessment of Hong Kong's LeaveHomeSafe app in this hour-long LASCON conference talk. Gain insights into the app's design, functionality, and vulnerabilities ranging from minor to critical. Learn about the tools and techniques used to identify and exploit security issues, and understand the implications for data privacy. Discover the challenges in proving security findings and the subsequent reactions from the press and Hong Kong government. Acquire valuable knowledge on securing contact tracing apps, the importance of thorough security assessments before deployment, and actionable recommendations for improving similar applications. Engage in a thought-provoking discussion on the security implications of contact tracing apps in the context of the COVID-19 pandemic, drawing from real-world examples and experiences.