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Are NFC hardware tokens (Yubikey, NitroKey) less secure than USB-only ones? If so, how to mitigate? (thebrainbin.org)

submitted 22 hours ago by modem_down@thebrainbin.org to c/cybersecurity@sh.itjust.works

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Yubikey and NitroKey offer NFC and non-NFC versions of their flagship hardware security tokens (HSTs).

NFC is convenient, but can under some circumstances send e.g. challenge-response exchanges in clear text.

Smartcards using RFID, a similar though not identical protocol, can be queried from ~100cm away.

Are there other ways are NFC HSTs are known to be more risky than their non-NFC counterparts?
Should users store NFC HSTs in RFID-blocking pouches, like those used for wireless car keys or contactless bank cards?

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[–] y0kai@anarchist.nexus 1 points 22 hours ago

not an expert on this but i would imagine a Faraday case for it, perhaps with a little flap for ease of access would work?

I would also hope a security company making hardware keys would be aware of and avoid the sending in clear text, as it would be a major vulnerability. Then again, ive never trusted a company to do anything beyond what is absolutely necessary to stay afloat.