Let this be a warning dear Signal users …
🔗 FBI Extracts Suspect’s Deleted Signal Messages Saved in iPhone Notification Database
What happens is that if the text of a Signal message shows up on a lock screen, it’s stored in iOS itself, in a place where forensic investigators can gain access to it. That’s a really good reason to turn off lock-screen notifications for Signal, and to remove the text of Signal messages from its notifications entirely.
💬 Ben Werdmuller