SecNumCloud 4.0 Mandates Operational Sovereignty for All Clouds Hosting Sensitive Data — the Framework Changes Everything by September 2026

On September 1, 2026, version 4.0 of the SecNumCloud framework takes effect for new qualifications. It mandates immunity to extraterritorial laws, capital independence, and software supply chain transparency. CISOs handling sensitive data must reconsider their cloud strategy before year-end.