Encryption refers to the process of converting data into secret code so that outsiders can’t read the information if they were to access the communication. In other words, it keeps your information private. Most Wi-Fi routers have built-in encryption services that can be accessed in the settings. Log into your router’s settings and select the wireless network configuration section. Here, you can turn on encryption by selecting either the WPA or WPA2 option. Be sure to save and apply the changes and reboot your router for them to take effect.