RFID Cloning

Updated 31 Jul 2026

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def
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  duplicating the signal from an RFID-based access badge or key fob onto a blank card, using an inexpensive duplicator (readily available online for well under $50)
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mitigation
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  multifactor authentication — require an additional factor alongside the RFID card, since the card alone can be cloned in seconds
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related
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  Physical Security
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  Multifactor Authentication
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cards
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  Why is RFID cloning a serious risk, and what mitigates it?
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    A cloning device (cheap, widely available) can copy a badge/fob in seconds; MFA (an additional factor beyond just the card) mitigates it

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