Modified version of Signal sent copies of messages to a central server for record retention compliance, but hackers have demonstrated the messages can be accessed on the server.

TeleMessage website before they pulled most of it down: https://web.archive.org/web/20250502003943/https://www.telem...

App source code (GPL3) via Micah Lee:

- https://github.com/micahflee/TM-SGNL-iOS

- https://github.com/micahflee/TM-SGNL-Android