You may have seen wallets or backpacks advertising RFID shielding, a protective covering designed to keep malicious ne’er-do-wells from scanning any items that contain embedded wireless receivers, like certain credit cards and passports. Sure, RFID shielding does prevent unwanted wireless transmissions, but with so little evidence of RFID-based theft, combined with the security measures present in today’s RFID tech, it doesn’t seem to be a threat you need to worry too much about.

Hi Lifehacker, a lot of people are trying sell RFID blockers to protect your card against getting skimmed via paywave while you are out and about. I was wondering if this was a thing that can actually happen or if they are just scaremongering to sell a product?