ATM skimmers are so successful is because they’re nearly impossible to catch. They’re cheap and easy to make and just slide onto anything you might use to swipe a card, stealing your information in the process. They’re also part of the reason you have to use that annoying chip card that takes forever to process.

But check out this skimmer found by security researcher Ben Tedesco in Vienna. It’s totally unrecognizable. It literally took a professional to find it.

Card skimmers may be going out of style pretty soon, as chip readers become increasingly prevalent. Until then, be on the lookout for anything suspicious where you swipe your credit card.