Can someone plug a device into a free network socket in our office?

In most small offices, yes: a live socket in a meeting room, at reception or behind a printer gives whoever plugs in a device the same network access as a company PC. A small computer hidden there can call out to its owner and act as a door into the network for months. Close it with simple measures: disable switch ports and wall sockets that are not in use, put meeting rooms and reception on the guest network, use port security to allow only known devices on a port, or 802.1X so that a device must authenticate before it gets any access. Walk through the office now and then, and check the switches for unknown devices. NetSenX helps find what already got in: its network map lists devices seen on monitored segments, including ones without an agent, on every plan, and a hidden device that calls out at regular intervals is flagged as beaconing. A device that stays silent, or sits on an unmonitored segment, is not seen.

← All 45 questions on Zero trust, identity and segmentationAll topics