Abstract
The text focuses on the definition and reconceptualisation of the concept of hybrid interference, traces the use of the concept in Czech security documents, presents the historical development of the use of the concept and then seeks a practical conceptualisation applicable towards research on the resilience against it. This conceptualisation includes a narrower definition of the concept, which is necessary for the real application, graspability and researchability of resilience in the context of the Czech environment. We arrive at a framework of hybrid interference that we believe to be more practical and useful, mostly due to its higher clarity and precision. Furthermore, we believe that definition of hybrid interference which is agnostic towards sectors, actors and specific tools used during such activities is preferable and more likely to remain universally relevant than those relying on enumeration and itemisation.