Even so - if 'cybercrime' and 'industrial espionage' are made possible by the lack of personal identifiers online, how are we supposed to understand telephone s

Even so - if 'cybercrime' and 'industrial espionage' are made possible by the lack of personal identifiers online, how are we supposed to understand telephone scams and pre-digital espionage? Landlines may have been unique identifiers in common usage, but they weren't identifiable when someone was seeking to misbehave. Which is exactly the problem with the metaphor.