It pays to be just a little paranoid. It helped one guy in Vienna avoid having his ATM card info stolen.

YouTube user Ben Tedesco, who claims to work in cybersecurity, spotted an ATM skimming device while in Vienna, Austria. Starting by spotting just a little glue on the edges of the card reader, he makes a disturbing discovery — that the "reader" actually comes right off. The card would have gone through two readers otherwise.

In the video description, he's since claimed that he notified the police, which is probably the best course of action here.