EUROCONTROL has published Version 2 of the European Action Plan for Airspace Infringement Risk Reduction, March 2022
https://skybrary.aero/articles/european-airspace-infringement-action-pl…

Airspace infringement, also known as “unauthorised penetration of airspace”, is a major operational hazard that can result from the division of airspace into different classes and structures, with their associated procedures and services, and its joint use by different categories of users, often with competing objectives and different operational requirements and capabilities.