[otabdeveloper4]

WebAuthn is the standard for token authentication.

(I.e., Yubikeys and other USB sticks.)

It works fine and it a no-brainer to use.

The problems start when vendors start trying to shoehorn their shitty cloud auth services into WebAuthn.

[NetMageSCW]

How well does that Yubikey work with an iPhone?

[sandeepkd]

Works just fine, you have to get the one with NFC

[bugcheck7b]

You can also plug them in to the USB-C port, works just fine.

[akdev1l]

Some functionality is not supported via USB-C. Namely HMAC Challenge does not work via usb-c but will work via lighting port.

[iamnothere]

Works great, they even have ones with USB on one side and Lightning on the other for older iPhones.

[thyristan]

iPhones are a lost cause.

[bdamm]

Passkeys on my iPhone works awesome.

Too bad for Yubikey. I don't need them any more.