Using a card as auth is not 2FA. I've hated some 2FA methods I've had to use (phone apps, RSA tokens), but when your auth method is just a yubikey or a key card

Using a card as auth is not 2FA. I've hated some 2FA methods I've had to use (phone apps, RSA tokens), but when your auth method is just a yubikey or a key card, the usability experience is pretty excellent.