Even State Department-funded Human Rights Watch admits that authorities combine legal and illegal methods to obtain convictions: https://text.hrw.org/report/2018/01/09/dark-side/secret-origins-evidence-us-criminal-cases
Combining dragnet surveillance with device hacking is intended in the design of both tools. Hence, State Department-funded Signal dupes you into handing over your identity as part of the population-centric mapping. In custody, your phone will be hacked when it is taken away if it’s important.
https://xcancel.com/hannahcrileyy/status/2034273723667161480#m
The government already has access to every phone number in existence. They can already track every phone to figure out who attended a protest or whatever. Filtering down to “all phone numbers who’ve ever connected to Signal” doesn’t exactly narrow anything down. They don’t have any metadata about who you were chatting with.
They used to publish them in big books, even
that’s precisely why you should not trust services that require it as private. phone number = identification.
plus apparently you government considers you a terrorist if you do.