Episode 61 — Physical Security Controls: surveillance, biometrics, proximity, NFC, door sensors

Physical security appears in CloudNetX scenarios because network reliability and security can be undermined instantly if an attacker or unauthorized person can access wiring closets, rack consoles, or edge devices. This episode introduces physical controls as layered defenses that establish who can enter, what actions can be taken, and what evidence exists if something goes wrong. The first paragraph defines common controls in operational terms: surveillance for deterrence and post-event reconstruction, biometrics for strong identity verification with careful fallback handling, proximity and NFC for convenient access that must be protected against cloning and sharing, and door sensors for detecting forced, propped, or unexpected entry. It also explains that physical security is a governance problem as much as a technology problem, because processes for visitors, escorts, credential issuance, and periodic review determine whether controls remain effective.