Google Maps Hacks
This paper (2013) might be of interest
"We  demonstrate  in  practice  how  hackers  can  take  control  of navigation  systems  and,  in  the  case  of  a  wide  distribution  of floating car data, can actively control the traffic flow."https://media.blackhat.com/eu-13/briefings/Jeske/bh-eu-13-fl...