There is one department here in school whose computers are connected to the internet through the wireless system.  They thought that if they are using wireless, they are not prone to internet bugs.  So they did not check on the latest wireless security systems because they thought they are safe. How wrong they are because last Tuesday, 4 of their computers crashed down and the reason is that their connection was not protected.  As of the moment, the pc being fixed and hopefully it will be back on the system soon to expidite work.