Yes, you can use Signal without sharing your personal phone number. Here’s how I did it.
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 :)
I cant find any information that discusses the security risk. But it would seem that this transfering all content to the owner of the phone number is a standard feature.
So, maybe its not discussed because it doesn’t frequently happen.
It doesnt seem like a trustworthy way to ensure users’ content remains secure.
Update:
https://old.reddit.com/r/signal/comments/8r7tbc/someone_impersonating_me_using_my_old_number_what/
https://support.signal.org/hc/en-us/articles/360007062012-Change-Number
https://support.signal.org/hc/en-us/articles/360007062452-What-do-I-do-if-my-phone-is-lost-or-stolen
https://support.signal.org/hc/en-us/articles/360007059752-Backup-and-Restore-Messages