Overview
- Spanish-language outlets, publishing Wednesday, reported fresh guidance that aluminum foil can shield contactless cards from wireless skimmers.
- The foil blocks the card’s RFID or NFC radio signal by creating a small Faraday-style shield around it.
- Effectiveness depends on full coverage with intact material and adequate thickness, with some guides suggesting a double layer.
- Step-by-step tips urge gentle folds, no hard pressure on the chip, and periodic replacement if the foil wears.
- Reporters say remote skimming is uncommon and advise using foil only as a low-cost extra along with RFID sleeves or wallets and bank purchase alerts.