This event presented by DG HOME aims to bring together practitioners, local authorities, policymakers, and researchers to discuss trends, risks, further research, and lessons learned from the multitude of major public events taking place over the course of the year 2024. The event will focus on security research needs and new threats, advanced technologies, crisis preparedness, and ethical and legal considerations in this field. The growing complexity and scale of major public events, such as international sporting championships or large music events, present significant security challenges, attracting global attention and large crowds, making them potential targets for a range of threats, from terrorism to cyberattacks. In this context, the need for cutting-edge security measures has never been more critical.