Friends, hello, if you buy a laptop, or a wireless network card desktop computer, you can through the WIFI network, where to ask the neighbor WIFI password, if you do not want to go to the problem, you can through a software to crack, such as CDLINUX, or baby bottles, and BT5, Any of these three software can be used to crack wireless WIFI passwords, with CDLINUX having the highest cracking rate. In this way, you can meet the requirements of rubbing other people's networks, so that it does not know. I hope my answer is helpful to you. I wish you success and happiness