Your Android mobile or the Google Maps app on your iPhone is silently sending your location and speed details back to Google servers. You can find the complete location history at google.com/maps/timeline and further have the choice to export this information as KML files that may be viewed on Google Earth. This makes your cell phone act as a Trojan Horse or as a Saviour, right! Ensure your data is in right hands always by using 2-way authentication for your Google account.
Beware, Big Brother is watching us!!