It is really surprising the amount of paranoia and thought that goes into software security compared to pretty much everything else. A driver's license is mostly a laminated piece of paper with some holograms. Social security numbers are 9 digit passwords you share over and over again that can't really be changed.
I was recently asked to sign a receipt at a store when I'd used Apple Pay. My phone uses a fingerprint reader to authorize a one-time-use token for payment that's transmitted in a cryptographically secure way. But that signature - that's the real unfakeable proof.
I was recently asked to sign a receipt at a store when I'd used Apple Pay. My phone uses a fingerprint reader to authorize a one-time-use token for payment that's transmitted in a cryptographically secure way. But that signature - that's the real unfakeable proof.