This COcyber white paper examines how cyber incidents increasingly spill across civilian and defence domains, showing where current responses fall short while outlining practical, coordinated measures to strengthen Europe’s ability to protect and recover the critical functions that depend on interconnected digital systems.

The third cohort of COcyber Ambassadors brings together seven cybersecurity professionals whose combined expertise supports Europe’s efforts to improve cooperation between civilian and defence communities, strengthen digital resilience, and encourage practical knowledge-sharing across diverse security domains.

This Cybersphere Insights Special Edition presents findings from COcyber’s Deliverable D4.2 National Case Studies Booklet on Cybersecurity Technology and Information Transfer, offering a consolidated overview of the cybersecurity landscapes of Lithuania, Spain, Hungary, and Slovenia.