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Tchap (Matrix, France)
EuropePublic-sector reuse evidence A verified
French government secure messenger built on the Matrix protocol (end-to-end encrypted, decentralised), part of La Suite numerique and hosted in the Interior Ministry cloud. About 400K monthly active users per a March 2026 DINUM presentation. Start date and original deployment scale not verified here.
- since
- beta announced 2019-04-19 (DINSIC; project started early 2018)
- scale
- DINUM figures inconsistent by page/date: >600k agents, >800k monthly (La Suite), ~400k daily (Jul 2026); PM circular Jul 2025 encourages use