EU cyber defences undermined by poor data sharing, auditors say

Efforts to combat cyberattacks across the European Union are being undermined by member states' failure to share enough information on the incidents, the European Court of Auditors said on Monday. "When a serious cyber incident occurs, timely and actionable information is essential. Without it, networks and mechanisms lose much of their added value," the report said. It pointed to a ransomware attack on a technology provider for the aviation industry in September 2025, which disrupted airports in London, Brussels, Berlin, Dublin and other hubs. None of the affected states notified the EU