You can use a master key to connect to shared WIFI. After the connection is successful, you can view the WIFI password by searching for the WIFI password viewer in the application mall, provided that you need ROOT permission. It will be a bit troublesome if you don't share it, and you need a lot of password dictionaries. It's only a matter of time before we grab the WIFI handbag and run the dictionary through the CDlinux wireless system. Whether you can succeed depends on the dictionary.