The Village of Rosemont in Chicago hosted PHP TEK 2025, a key event for PHP enthusiasts and web developers.Eric Mann emphasized the importance of threat modeling for proactive security measures at the conference.Peter Meth highlighted security implications in architectural decisions, promoting embedded security practices.Tim Lytle stressed the importance of relevant testing and maintaining security integrations effectively.Developers were recognized as partners in security efforts, emphasizing the need for collaboration rather than imposition.Security maturity involves creating guides and fostering conversations rather than imposing compliance measures.Improved communication and collaboration between security teams and developers are crucial for effective security practices.Shared responsibility with differentiated expertise was proposed as a model for sustainable security ownership.Security teams are evolving to be developer advocates, ensuring better integration of security practices into development processes.The culture of security needs to align with developer practices to make security measures more easily adopted and implemented.