[crabbone]

MFA in its current form owes its existence to a lawsuit filed against Google being a monopoly on Android when packaging and selling advertisement data to ad campaign management companies.

It's not about being able to tie your phone number to your name. It's about being able to tie your browsing, purchasing, and other behavior history to an id that doesn't change much.

Google by itself doesn't run ad campaigns. It sort of has API to design a campaign yourself... but that's super ineffective. There are multiple companies who manage ad campaigns which run on Google. In order to be effective they need to have some predictive power over user's future browsing, purchasing etc. choices. Being able to consistently identify the user (and tie that to their history) is the most valuable ad-related info anyone can sell.

Whatever existed in the 80s has nothing to do with MFA is today. Today it's a scam that helps big tech companies who want to be an advertisement platform to harvest and to catalogue data helping advertisers predict user behavior. All it does to end users is inconvenience and less security. All it does to IT is an extra headache and more procedures that may potentially go wrong.