Basically this scam works by a thief putting a narrow piece of folded black plastic film into the ATM slot. The thief glues the ends of the film to the outside of the ATM slot so you cannot see it. The mark then puts his ATM card in the ATM slot and it gets stuck because of the plastic film is in the ATM slot. The mark then tries to get the card out and is soon “helped out” by the thief. The thief suggest re-entering the pin number to get the card out. The mark does this several times where the thief is able to see the pin number that is being entered. After awhile the mark gives up and goes to report his card is stuck in the ATM machine. The thief then goes in and gets the card out of the slot by ungluing the film and withdrawals the maximum amount of cash from the ATM.
Digg.com posts, “Using black film which blends with the black plastic of an ATM thieves can steal your card along and capture your pin number.”