Privacy warnings will appear when connecting to the campus network.

Wifi link displays privacy warning because the network you joined has no password or the password is too simple and has been stolen, so set a more complicated password for your wireless router.

WIFI traps are actually everywhere. Sometimes, if you use your mobile phone to connect to an unofficial public WIFI, your various bank accounts and passwords will be leaked without vigilance. This method is commonly called fishing.

Now merchants will provide WiFi access services, and in order to prevent Internet access, merchants will also set passwords. Hackers will provide a free WiFi access point with the same name as the merchant, but without a password to attract netizens to access.