They used XMPP for this.
"The FBI and Australian law enforcement set up the encrypted chat service and ran it for over 3 years, seizing weapons, drugs and over $48m in cash."
@hund The article does not say the Anom devices used XMPP. It just said they sent copies of the messages to a bot. This bot might have relayed those copies by XMPP.
@hund It doesn't appear that they worked all that hard to make it even appear to be secure either (e.g. no VPN, no firewall, no blocking Google services, etc.)
@hund I was wondering how you build your own key into an encryption system. Did they just build a new encryption system with symmetric keys so they can basically just decrypt the message that are encrypted with this key? I wanted to know how exactly they did that.
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