Robert Siciliano of http://IDTheftSecurity.com was recently on Extra. He was showing how easy it is for a scammer to attach a skimmer to an ATM machine and steal the bank information from hundreds of people in one day. The even scarier part is that the ATM machine that Robert bought to demonstrate this was purchased on Craigslist.
Here is a link to the segment that aired.
Boston Globe Article here:
More here: http://www.finextra.com/community/fullblog.aspx?id=3551