> Authenticator apps, and SMS help them derive you have identity How do they do that? TOTP (i.e. authenticator apps) is a simple algorithm where the value is

> Authenticator apps, and SMS help them derive you have identity How do they do that? TOTP (i.e. authenticator apps) is a simple algorithm where the value is derived from a secret key and current time. It certainly doesn't verify anything about you.