Physical security, deception technologies (honeypots, honeynets), risk terms, audits and compliance (PCI DSS, GDPR)

If an attacker can touch your equipment, many logical controls can be bypassed: they can plug a device into a switch, reset a router to factory defaults through its console, install a hardware keylogger, or simply steal a server or backup drive. Physical security is therefore the foundation layer of defense in depth. Network+ pairs it with deception technologies that detect intruders, the vocabulary of risk, and the audits and compliance frameworks that require all of these controls.