Impeding unauthorized network infiltration at remote critical infrastructure facilities

A system preventing unauthorized access to a network comprising:

• a plurality of secure containers, each secure container comprising:
• an access portal for controlling access to contents of the respective secure container;
• a security checkpoint configured to receive an authorization code for access to the contents of the respective secure container and to determine a state of the access portal for the respective container;
• and
• a logical lock module that switches to a breach mode of operation in response to a signal from the security checkpoint indicating that the access portal has been opened without receipt of the authorization code within a predetermined amount time before or after opening the access portal;
• a plurality of network switches, each network switch being disposed within a respective secure container, wherein each network switch is configured to:
• communicate on a network;
• and
• disable outgoing network communications to the network in response to a breach signal indicating that a respective logical lock module has switched to the breach mode;
• and
• a plurality of terminal devices, wherein each terminal device is disposed within a respective secure container, and each terminal device communicates on the network through a respective network switch.