This lecture covers the security and verifiability aspects of digital voting systems, focusing on in-person and remote e-voting. Topics include protection against tampering, efficiency in ballot counting, input validation, and digital assistive technologies. The lecture also discusses the Swiss e-voting system, end-to-end verifiability, and the importance of trust, security, and privacy in electronic voting. It explores the challenges of ensuring the integrity of vote count, voter privacy, and the usability and scalability of e-voting systems.