Subj : w/o the govt, fed or China listening
To : Ogg
From : Arelor
Date : Sun Jan 26 2025 04:47 pm
Re: w/o the govt, fed or China listening
By: Ogg to Arelor on Sun Jan 26 2025 11:23 am
> BUT.. is it not true that when you create a Signal account,
> they will [by default anyway] blast every user in your contact
> list that also has Signal with a notice they you're newly
> joined?
It is the only way around. People who has you in their contact list gets notified that you have joined.
It is not like you are broadcasting the existence of your account.
It is also a service that can be disabled on your end.
You can check how contact discovery works here:
https://signal.org/blog/private-contact-discovery/
"The client calculates the truncated SHA256 hash of each phone number in the [yours] device’s address book.
The client transmits those truncated hashes to the [contact discovery] service.
The service does a lookup from a set of hashed registered users.
The service returns the intersection of registered users."
It is far from great but it is not nearly as bad as people makes it out to be.
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