Apparently if I’m reading the work of others correctly a notification component and subsequent other interaction logs, in this case that the notification was not generated, is also logged in knowledgeC pointing to at least some metadata of non-notified messages logged.
The message text is still sent to the push notification server from the app's infrastructure - this setting simply stops the phone from displaying the message.
The app itself must choose not to send the message text in the push notification.
So does every app, go to iOS settings > notifications shows previews > never.
Most likely changes the preview on the client-side, but the message is still full on the server-side
Signal does not have the plaintext of the messages and therefore could not send it as part of the notification.
Apparently if I’m reading the work of others correctly a notification component and subsequent other interaction logs, in this case that the notification was not generated, is also logged in knowledgeC pointing to at least some metadata of non-notified messages logged.
Correct, parent comment is spreading misinformation/false sense of security.
Is setting it from Signal directly more trustworthy?
Or maybe it’s impossible for iOS to store the preview content if it never showed in the first place, but not sure if it’s even documented.
I wish it can be disabled for particular apps and not an all or nothing situation.
Can be!
Settings > Apps > choose an app > Lock Screen Appearance: Show Previews - Never
The message text is still sent to the push notification server from the app's infrastructure - this setting simply stops the phone from displaying the message.
The app itself must choose not to send the message text in the push notification.
That setting is available for each individual app.
That's the first thing that came to mind. Glad that they already thought about it!
And if you turn off notifications, Signal is more than happy to nag at you for having notifications turned off.