> making phone numbers a passport of sorts (a proprietary, insecure, easy to lose passport, over which you have basically no control)
Phones are an imperfect solution for two-factor authentication but nothing else is as widely available.
There are also very well-supported ways to recover access to your phone number if the physical device is lost or stolen: Contact your phone company, present legal ID and get a new sim card.
Phones are an imperfect solution for two-factor authentication but nothing else is as widely available.
There are also very well-supported ways to recover access to your phone number if the physical device is lost or stolen: Contact your phone company, present legal ID and get a new sim card.