In this engaging discussion, Jonathan Horvath, owner of Z-bit Physical Access Control Systems Consultancy with over 25 years in the field, delves into the intricate world of physical access control systems. He highlights the slow shift from proprietary systems to open standards like OSDP and the security risks of cloud-based systems. Horvath reveals vulnerabilities in hotel key card systems, explores advancements in credential technology, and stresses the importance of local decision-making in an increasingly interconnected security landscape.