Why France just dumped Microsoft Teams and Zoom - and what's replacing them

France is migrating government workers from Microsoft Teams, Zoom, and other non‑European services to Visio, an open-source platform developed with EU partners, as part of a drive for digital sovereignty and to reduce exposure to foreign laws such as the 2018 US Cloud Act. Built with Django, React, and LiveKit, integrated with Pyannote AI transcription and Tchap/Matrix, and hardened with ANSSI guidance, Visio is rolling out across ministries toward full deployment by 2027, with about 40,000 current users, a near-term target of ~200,000, and projected cost savings by discontinuing external licenses.