Comment by fidotron
2 years ago
Encrypted messengers aren’t sending unencrypted push payloads, at least not deliberately.
A lot of apps don’t even put much in the push messages themselves at all, they are mainly an indicator to phone home for more information.
Consequently no gov has been getting meaningful info from the content of this stuff for many years - it will all be what you can infer from observed patterns, which is a lot.
I'm not sure I'd trust dating apps and weaker chat apps not to just be sending the contents of messages to a TLS push notification endpoint that Apple/Google could do whatever with before forwarding on to devices.