"In stark contrast, Signal collects no metadata, whereas Apple's iMessage makes use of only email address (or phone number), search history, and a device ID to attribute a user uniquely."
@PNeurona @hund a copy of data is backed up in icloud(default)
@Dashtop @hund Correct.
To get this kind of detail, this is my "Bible in short". https://www.securemessagingapps.com/ For me, this is a quite useful way to compare that matters.
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