"When traveling, Elizabeth and I are always a little bit extra
cautious; we hide money in special belts, we carry emergency cards in 3
separate places, we never withdraw more than $100 from the ATM. One
precaution Elizabeth always takes, is covering her PIN number with her
left hand while she types it with her right. At first, I thought it was
over-paranoid, but being a security researcher, I was soon covering my
PIN everytime I typed it as well. Little did I know that this precaution
would soon pay off…"
In this article a security researcher discovers an ATM skimmer in the form of a stuck on pin-guard, and proceeds to reverse engineer it. This kind of crime is more prevalent than break in robberies, and more effective too.
Full Article here