Aug 25, 2015

How do RFID blocking wallets work?

How do wallets that claim to prevent RFID skimming actually work? Are they a scam, or is it a prudent measure to protect yourself from criminals?
RFID works on a radio waves, the blocking wallets interrupt the signal from getting through there for protecting the information encoded in the chip. There are a number of technologies that are used, the most popular ones use either an aluminum/metallic lining (aluminum foil) to block the signal, alternatively they can use the Faraday Cage technology (any static bags). Both work fairly well but not 100% and any wear and tear can cause failure.
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