The U.S. military has DCS, MilSuite, and Mattermost on DoD servers some law enforcement use Rocket chat.
Israel uses SecureTalk equivalents.
While UK uses MODNet Chat. We should have ours and this can be created , there are private firms in Nigeria that can do this well!
The AFN needs its own secure messaging platform not WhatsApp or telegram or even signal .
A simple AFN Secure Messaging Suite (AFN-SMS) could fix 90% of comms vulnerabilities.
That has an Emergency Officer Locator used ONLY during kidnaps, lost comms or SAR ops not 24/7 track