BSI Updates C5:2026 Cloud Security Standard (heise.de)

• Alignment of C5 criteria with the EU Cloud Certification Scheme (EUCS).
• Increased emphasis on digital sovereignty for cloud infrastructure.
• Harmonization of security requirements for service providers.

"The Federal Office for Information Security (BSI) has released the updated C5 criteria catalog for cloud computing. Version 2026 aligns German national security requirements with the evolving EU Cloud Certification Scheme (EUCS). This update aims to harmonize security benchmarks across Europe, ensuring that cloud infrastructure providers meet strict reliability and sovereignty standards. By embedding these criteria, the BSI seeks to provide a robust framework for secure cloud deployment, enhancing resilience against cyber threats while supporting the EU’s unified digital market objectives."