“Is this an rfid key? Does it work by sensing body heat when touched? Thanks”

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• Not sure about rfid on the 5Ci. There's a version that has USB C and NFC. The 5Ci has USB C and Lightning connection. As for body heat, the yubikey is activated by touching the 2 metal contacts along the long sides which generates the token. Shown with arrows on the picture

  Answered by Rakib 9 months ago

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• Hello! YubiKey uses NFC (Near Field Communication), a contactless technology similar to RFID (Radio-Frequency Identification). However, NFC requires you to be much closer than RFID. Additionally, YubiKey features capacitive touch, which senses touch through electric capacitance rather than heat or pressure.

  Answered by Yubico Official Support 11 months ago

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