NIS Entities are organizations identified as essential for the maintenance of critical societal and economic activities, as defined by the EU Network and Information Systems (NIS) Directive. These entities operate in sectors such as energy, transport, banking, health, and digital infrastructure. The NIS Directive requires these organizations to implement robust cybersecurity measures and report significant incidents to national authorities. The aim is to enhance the overall level of cybersecurity and resilience across the EU. NIS Entities are subject to regular audits and must demonstrate compliance with security requirements, ensuring the continuity and reliability of essential services.