What Is RFID Skimming?
RFID skimming is the unauthorized reading of contactless cards — credit cards, hotel keys, transit cards, and US passport cards — using a portable scanner. The attacker doesn't need physical access to your wallet; they just need proximity. A skimmer the size of a phone can read multiple cards through a bag or pocket within seconds.
What's at Risk
Modern contactless credit cards, NFC-enabled debit cards, and passport cards transmit data on the 13.56 MHz frequency. Without protection, this data can be intercepted from up to 3 feet away. The intercepted data isn't always immediately usable (most modern cards rotate cryptographic tokens), but card numbers, expiration dates, and cardholder names can be exposed depending on the card's age and issuer.
How RFID-Blocking Lining Works
RFID-blocking material is typically a thin layer of metallic mesh or foil woven into the lining of a card slot, wallet, or purse compartment. The metal layer creates a Faraday cage effect — blocking the radio frequency that powers passive RFID chips and disrupting any attempt to read the chip from outside. SaveTheGirls integrates RFID-blocking material into card slots across the touchscreen purse line.
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