I think I have been duplicated or hacked. Google Maps time line shows me present for three days consecutively and me amd device were at another location, home. Is this possible what info /action have I allowed if it is possible? What I need to stop or solve the problem
If only one device is on the timeline, there is a high possibility that you GPS is not good. My device thinks often that I am in a city about 20km away. I is a bug with google. To get really save, you can open the Android device manager in your web browser and get a list of all Android devices logged in into your account.