If you've spotted an unintended Ethernet connection and wondered what you could do with all of the information coursing through those wires, there's an easy way to hack into it and find out. Let's say there's a router that we need to know the password for, and we have physical access to an Ethernet connection where we can attach a Packet Squirrel, a pocket-sized tool to main-in-the-middle the network. If the router isn't using HTTPS, we can record all of the traffic over the Ethernet. Once so...
