Privacy is an illusion. But so is protection.
Many people go online via a router and typically only the computer directly connected to the device can interrogate it for ID information. However, Mr Kamkar found a way to booby-trap a webpage via a browser so the request for the ID information looks like it is coming from the PC on which that page is being viewed. He then coupled the ID information, known as a MAC address, with a geo-location feature of the Firefox web browser. This interrogate a Google database created when its cars were carrying out surveys for its Street View service.(via BBC News – Web attack knows where you live.)
When the State does not leave its citizens alone, what can be done of these unscrupulous or aggressive hackers.