Physical Port Access
Physical port access occurs when an unauthorized person connects equipment to an exposed Ethernet, console, USB, or other interface.
Mechanism
A physical port can provide network access, management access, or a path to introduce devices if controls are weak.
Indicators to watch
New switch MAC addresses, link-up events at unused ports, console access logs, USB device events, and unexpected endpoint changes.
Concept diagram
Defensive controls
Disable unused ports, lock equipment rooms, use port security/NAC, protect console ports, and monitor device connections.
Recommended security control
NAC + switch port security
Demonstrate with a spare switch or lab endpoint.
Defense tool
The administrator has not attached a tool yet. This slot will show “Build Soon” until a link or file is configured.
All attack descriptions are for defensive education. Test scanning, traffic generation, interception, wireless testing, and vulnerable applications only on systems and networks you own or are explicitly authorized to assess.