Card skimmers have been around for a while now, but they're only getting more sophisticated and hard to detect. This one features a tiny pinhole camera that records victims' PIN as they punch it into the keypad, and it was clearly molded to fit and work with this exact ATM.
What can you do to protect yourself? Just be aware. Look at all the ATMs in the bank you're in to make sure they all look the same. Look for hidden cameras or extra seams that seem out of place. Look for odd protrusions or elements that have colors that don't match the rest of the machine. If you're paying attention, you should be OK. But if you aren't, you're at risk for giving up your checking account to a scammer. [Krebs on Security via Cynical C]
