Originally Posted by Bladewire

You don't know hacking.

To make it simple for you; walking in to rob a bank you know you'll be recorded. You disguise youself but they'll still know you have 2 arms 2 legs and came in from the side exit instead of the front. They'll know which teller you went to and how much she had in her drawer. They'll know when you leave, and sometimes where you went to and where you came from. I could go into more detail but you get the point.