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Sead Fadilpašić

French government internal messaging tool Tchap hit by data breach — but it doesn't know if any data was compromised

View on National Assembly building in Paris, France, with French and European flags flying.
  • French government‑only chat app Tchap breached via stolen valid account, attacker claims 13.5GB exfiltrated
  • Alleged haul includes 73k accounts, 640k+ messages, 800+ chat rooms; private chats encrypted, public rooms not
  • ANSSI and DINUM investigating amid wider warnings about state‑targeted messaging‑app espionage

A chat app used exclusively by French government employees was apparently hacked and hundreds of thousands of messages allegedly exfiltrated, with the authorities now investigating these claims.

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