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Exposing The Flaw In Our Phone System - YouTube
(www.youtube.com)
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
[Matrix/Element]Dead
much thanks to @gary_host_laptop for the logo design :)
He says nothing about the PIN, so I don't think that is what protects Signal as OP writes. It simply doesn't rely on SS7.
You only type your PIN into Signal about once a month.