Tchap is a technology platform tracked across 2 threat clusters and 6 intelligence report mentions on ThreatCluster. First observed October 31, 2025; most recent activity June 10, 2026.
Tchap is a government-backed, open-source encrypted messaging platform used to facilitate secure communications within the public sector. Positioned as a sovereign alternative to proprietary Big Tech apps, it leverages open standards (Matrix) to provide end-to-end encrypted messaging and auditable security. Its adoption across European governments highlights a cybersecurity shift toward data sovereignty and government-controlled communications infrastructure.
On June 7, 2026, the French government's encrypted messaging platform Tchap was breached due to an account hijacking. The attack was executed through social engineering, compromising a user account linked to Tchap's…
European governments are increasingly adopting the Matrix decentralized communications network as an alternative to US-based encrypted messaging services like WhatsApp and Microsoft Teams. This move is driven by…