I remember reading about a case in Europe where someone was able to insert a credit card shaped device into an ATM slot and capture the information of whoever had just used the ATM.
It sounds a little farfetched to me unless the ATM had kept that information in memory which I don’t believe they do.
If it’s the one I’m thinking of, they set a fake cover over the reader that swiped the card when you did a transaction.
There was a case a couple of years ago in Rhode Island where some Armenians showed up at an all night Stop and Shop. While one of the gang distracted the skeleton staff, the others swapped out the debit card PIN pads at the registers, substituting hacked versions that recorded the card info and PINs. Not long afterward, local banks started getting complaints of unauthorized ATM withdrawals. They noticed that all the hacked cards had been used at the Stop and Shop prior to the unauthorized transactions. And sure enough, the PIN pads were found to be modified.
They reviewed the surveillance videos and briefed the staff to watch for the bad guys, who needed to return periodically to retrieve the recorded card details. They were busted soon after.
http://www.projo.com/news/content/PINPAD_SENTENCING_09-08-07_LN71VVS.3274012.html
That has happened here in Canada. The scam involved inserting a card reader into the slot on the ABM and hiding a camera to record the user keying in the PIN. The banks here had all of the ABMs modified to prevent it.
They don't.