Precaution while using WiFi
Use a mobile hotspot
In lieu of tethering, many phones now have the ability to act as a Wi Fi hotspot themselves. There are also dedicated devices, such as the MiFi, that when turned on, are simple dedicated hotspots. Either way, the device connects to the mobile broadband network and provides a Wi Fi hotspot accessible to one or more devices within range. When used in this manner, these devices are acting as routers and must be configured securely, including applying a WPA/WPA2 password so as not to be simply another open Wi Fi hotspot susceptible to hacking.