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TeleMessage creates modified versions of Signal/WhatsApp/Telegram that archive messages for gov agencies.
Recently made headlines when National Security Advisor Waltz was photographed using it.
May 5, 2025 18:20A hacker accessed unencrypted message contents, contact info of gov officials, admin credentials, and customer data.
Notably includes CBP, Coinbase, and other financial institutions.
This confirms security researchers' warnings: Adding message archiving to E2EE apps fundamentally breaks their security model by creating a vulnerable "man-in-the-middle" point.
One screenshot showed 747 CBP officials in the system.
Data includes fragments of live communications, including sensitive discussions about pending crypto legislation.
Incident validates Signal's previous statement that they "cannot guarantee security properties of unofficial versions."
TeleMessage's claims about maintaining Signal's security were demonstrably false.
