Having a wifi connection helps you to do a lot of activities on the web. Starting from work, streaming videos to playing games, it can cover all. And if you are not having a wifi- but your neighbour has, let me tell you a secret. Just go looking for how to hack unknown wifi password. It will help you to use their wifi without their concern. For knowing how to hack unknown wifi password, you just need to follow some netish rules, like going for CMD source code, entering the username and hacking them.