Identity theft techniques used by thieves

Name the vulnerability and thieves will use it to steal access to their electronically stored funds or to pose as their victims when they establish credit using purloined credentials.

Imagine a thief who hangs out in a supermarket, looking for the most harried and ditzy shopper. That individual falls in line behind the shopper, watching as the ATM card is used and as the PIN is entered. "Somehow", the card falls to the floor and the helpful thief picks up the card and hands it back to the distracted customer. Only it is another card that looks the same. Now the thief has the card and the PIN. The bank only wants the card and the PIN, making the thief identical to the true owner of the card. Expand the list to those who have access to security camera records of a person as they are entering their PIN.