When visiting another company i recently saw a setup where a company had 2 offices one on the 3rd floor and one on the 5th floor in the same block.
To link the 2 offices (i guess so that they where on one LAN) they had run a bunch of cat cable some in concealed risers, but some of the cable run was discreetly surface mounted.
Is this a security issue ? Would it be as simple as someone cutting the cable, putting rj45 ends on each end of the cut and placing them into a 5 port switch. Then connecting a laptop to one of the other ports on the switch to gain access to the network.
What can be done in the system / router config to prevent this ? Can the local network be encrypted on the router ?
(Other than making sure all structured cabling is properly concealed, but even then someone can cut through a 2mm thick piece of aluminium trunking.)