Treat physical security and cybersecurity as one discipline, not two

A physical intruder who reaches a networked terminal has bypassed all your digital access controls. A cyber attacker who needs to install a hardware implant (as NSA TAO did with Cisco routers) must overcome physical security first. The Stuxnet weapon crossed an air gap via a USB drive — a physical act. Verkada's camera breach exposed live footage inside Tesla, Cloudflare, and schools because a super-admin credential stored on the public internet could reach every camera simultaneously. Physical and cyber security teams must share threat models, incident response processes, and access control policies. A camera system is a cyber attack surface, not just a physical one.