Note that streetview cars are not only for maps, they&#x27;re also wardriving cars. They collect information on Wi-Fi networks, so then you can map a router MAC address to a physical location. They used to sniff wifi traffic too.<p>There was a tool (<a href="http:&#x2F;&#x2F;samy.pl&#x2F;mapxss&#x2F;" rel="nofollow">http:&#x2F;&#x2F;samy.pl&#x2F;mapxss&#x2F;</a>) that allowed you to interface that system. When I moved to a new home, my router appeared on the old location for a few weeks, and then it got updated to the new one. Creepy.