If the data never leaves your device, then a third-party service never gets the opportunity to leak or misuse it. This is far more private. How many stories h

If the data never leaves your device, then a third-party service never gets the opportunity to leak or misuse it. This is far more private. How many stories have you heard about breaches due to accidentally mis-configured logging in web services? Also in the news lately was Twitter misusing 2fa phone numbers for advertising purposes.