Not only that but also, as SSIDs are often unique, it's possible to completely passively track all the locations your device has been. More info in this talk: h

Not only that but also, as SSIDs are often unique, it's possible to completely passively track all the locations your device has been. More info in this talk: https://www.youtube.com/watch?v=03iEaKPRb9A https://www.youtube.com/watch?v=03iEaKPRb9A