Here it does not matter whether these are connected via Wlan or an network wire. Are you sure that your network is absolutely secure and that there is nobody using it illegally? When do your kids switch on their computers and when do they switch it off? and there are even more useful opportunities ISpy Lan Monitor proves it to you. THIS THING BETTER THAN A FIREWALL U CAN ACTUALLY SEE SOME MAKING A DIRECT CONNECTION TO U PC OR LAPTOP AN EASILY BAN THEM OR BLOCK DEM.. FILE IS ONLY 1MB . THIS ME USE FOR MY FIREWALL..