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Re:Telegram reportedly surrendered user data to authorities by sgjohnson on Monday June 06, 2022 @10:11AM (#31640744)
> Signal has a push token for the vast majority of accounts otherwise they wouldn't be able to send out push notifications on iOS

It's technically possible for them to not know which phone numbers correspond to which devices and tokens.

Re:Telegram reportedly surrendered user data to authorities by Kinrany on Monday June 06, 2022 @11:44AM (#31641937)
If they have the ability to send notifications, it's irrelevant how exactly that works: they can let a third party do that through them.