Sorry... but... like... How is that not 2FA? You moved one of the factors. The possible factors are: Something you know Something you are Something you have

Sorry... but... like... How is that not 2FA? You moved one of the factors. The possible factors are: Something you know Something you are Something you have Choose 2. A PIN would be something you know A fingerprint would be something you are. The key is something you have. I'm saying in the post that we're never going to just a passkey for this. And the yubikeys I have used in the past have all been just "something you have".