The energy transition and grid expansion are progressing incessantly – while this is a great development, it poses major challenges for energy suppliers and grid operators. New technologies play a key role: If intelligent systems and sensors work together at all important distribution points, they function both as a database and an "artificial specialist". Digitalised, intelligent systems provide precise and condition-based recommendations for actions to asset management and thus actively help to keep fleets safe and healthy. With the right cyber security concepts in place, the following three levels are particularly important.