Technology
This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.
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phone numbers are typically tied to your name/identity, and phone companies can locate you using their towers and such. Giving a company your phone number is identical to giving a company your full legal name and address.
me giving, let's say, twitch my phone number gives them exactly 0 ways of tracking me in any way whatsoever
Source: worked for a mobile company
First part is not quite true, varies by country.
Second part is full on Olympic mental gymnastics
yeah, no idea why you're getting downvoted, it's clear why companies are so eagerly embracing and requiring 2FA -- if the benefits were only for the consumers, it wouldn't be mandated anywhere near this quickly. but when they know they get a real human phone tied to every account, that's a huge motivation