Systems, methods, and storage media for detecting a security intrusion of a network device

A networking device comprising:

• a network communication port receiving a telecommunications signal;
• a switch module replicating the telecommunications signal on a plurality of bi-directional communication ports each comprising an output port and a corresponding input port;
• a photodetector associated with the at least one port of the plurality of bi-directional communication ports to detect a light signal on the input port of the at least one port;
• a controller receiving a light detection signal from the photodetector and generating, based on the light detection signal, a security alarm for a security enabled port of the plurality of bi-directional communication ports;
• and
• a switch device associated with the at least one of the plurality of bi-directional communication ports and transmitting, to the controller, an insertion signal upon a change of state of the switch device in response to an insertion of a cable into the at least one of the plurality of bi-directional communication ports,
• wherein generation of the security alarm is further in response to receiving, at the controller, the insertion signal from the switch device associated with the security enabled port.