Why Use An RFID-Blocking Wallet?
As it stands right now, most credit cards and debit cards issued within the past decade have RFID technology embedded in them. All US passports issued in 2006 and later have RFID chips that track your data and photo. RFID chips are a convenient way to store and read data – instead of having to swipe your card through a reader, you can simply wave your card in front of an RFID scanner without even taking it out of your wallet. It’s convenience at its best.
Unfortunately, the danger is that someone could build a counterfeit reader – which wouldn’t be too difficult for anyone who has experience in that field – and pick up your RFID information against your will. It’s similar to one of the risks in an NFC device, which requires a close-up “bump” to trigger a transaction. Counterfeit card readers existed before RFID, but they require you to physically swipe your card through a slot; counterfeit RFID readers can pull or delete data without so much as you walking by.
Angela listed some tips on how to stay safe against hacked RFID chips, and she mentioned RFID-blocking sleeves, pouches, and wallets. A proper RFID blocker will utilize something called a “Faraday cage” and the specification you want to look for is “electromagnetically opaque”. These RFID blockers will prevent illegitimate reading of your RFID-embedded objects