We had no trouble setting up either the USB-A or USB-C models with our Windows 10 PC and then enrolling each one with a Google account. There's also no NFC chip on the YubiKey Bio to wirelessly interact with phones.įunctionally, the YubiKey Bio is similar to the $25 Security Key by Yubico, a basic security key with a USB-A plug that supports only FIDO U2F and FIDO2/WebAuthn but also has NFC. Neither Android nor iOS supports the FIDO Client to Authenticator Protocol (CTAP) version 2.1 (opens in new tab) that the keys use. Smartphones won't work with the YubiKey Bio either, despite the USB-C option. Yubico representatives told me this is because FIDO and FIDO2 support biometric authentication while the other formats do not. Many services that require YubiKey 5, such as Instagram, LastPass and Twitch, won't work with YubiKey Bio. The YubiKey Bio does not support many of the 5 series' functions, including several one-time-password and smart-card formats. However, the Bio's utility is a bit limited compared to that of the YubiKey 5 series.
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