When you have an internet connection it is pretty difficult not to divulge certain details to second and third parties.
For example....a simple ip addy (in the right/trained hands) can lead to a plethora of information on an individual, information the individual hadn't knowingly shared.
I've witnessed its interrogation first hand in persuit of the criminal fraternity and it left me speechless.
Granted, it is time consuming and dependant on hi tech resources, but it is doable if the inquisitor is determined.
