4 ms·
To expand on this, it takes three points to identify a circle, so you'd need to leave home and return from three different roads (at least at the intersection w
by CapacitorSet 9y ago
To expand on this, it takes three points to identify a circle, so you'd need to leave home and return from three different roads (at least at the intersection with the circle).
- drdrey 9y agoYou can still potentially make useful inferences without 3 points. For instance, imagine the configuration where there is a single straight road that leads to your home (center of the privacy circle) - you can just extend the line where the GPS tracks for 5/8 mile (the biggest privacy setting) and infer the location of the home. Similarly, if you have 2 straight GPS tracks leading to your home, you can infer both the center and the radius of the privacy zone. You may not get the exact street address, but you could definitely figure the block or the street. Maybe not super useful in a dense city, but that could leak quite a bit about you if you live in a suburb or rural area.