What type of RFID tag is embedded in current U.S. passports, and how can people protect themselves from unauthorized detection?
Current passports used in the United States utilize high-frequency (HF) RFID tags based on the ISO 14443 standard. The passports now have a foil lining in their cover, to protect the tag from being read without a passport holder realizing it. For further protection, you could wrap the passport in tin foil, or carry it in a Mylar bag.
—Mark Roberti, Editor, RFID Journal
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