Because you could end up using a public hotspot once in a while, having Hotspot Shield installed. Hotspot Shield has been designed from scratch as a software solution that protects the data you're downloading or uploading from and to various servers on the web while using insecure wireless networks. It works when your devices are near each other and set up as follows: Use Instant Hotspot with any Mac, iPhone, iPad, or iPod touch that meets the Continuity system requirements.
