

CVVi7rfLoYĪrs reproduced the problem, which Patrick Wardle of Objective See conducted a particularly deep dive on-revealing that the problem is, in part, a bug in the way Signal handles calls to the macOS notification system and, in part, is just how macOS notifications work. Quit and reopen the app at any time to see if an update is available. If you are using the desktop app for Mac, check your notifications bar messages get copied there and they seem to persist - even if they are "disappearing" messages which have been deleted/expunged from the app. Go to Signal Desktop > About Signal Desktop Linux Go to Signal Desktop > Help > About How do I update Signal Desktop Windows or macOS Signal periodically checks for updates and also checks for updates during startup. There is just one small problem, however, with that feature on the Mac desktop version of the application, as information security consultant Alec Muffett discovered: if you send a self-deleting message to someone using the macOS application, the message lives on in macOS' Notifications history. Signal version v1.25.1-beta.1 Hardware MacBook Pro running Mojave 10.14.5 Debug Log Close Signal rm -r /Library/Caches/ (maybe you need root permissions) Start Signal Update Reboot the machine and ensure that Signal is NOT opened before executing the next step.


Signal, the privacy-focused voice and text-messaging application, offers an attractive bit of operational security: ephemeral text messages that "self-delete" after a predetermined amount of time.
