Wired? Like network cabled?
:/
Are you serious?
If you see other cables drilled thru the wall or thru a window, then buddy, you have some issues, people are leeching your net connection!!!!! A good way to find out who the culprits are is follow the cable to their house! But dont be fooled! One of the cabled will lead to your computer! Those sneaky web people are so tricky!
Dude, unless you have a wireless network card or router, there is no way anyone can leech your net connection.