NIS 2 is the EU’s cross-sector cybersecurity law. It replaced the 2016 NIS Directive with a wider scope, stricter requirements and stronger enforcement. It covers medium-sized and large organisations in eighteen sectors, from energy, transport, banking, health and digital infrastructure to postal services, manufacturing and food, and some entities regardless of size.
Because NIS 2 is a directive, it does not apply to organisations directly. Each Member State has to transpose it into national law, identify the entities in scope, and appoint competent authorities and CSIRTs. The national law is what an organisation is actually obliged to follow, and Member States may go further than the directive. Transposition was due by 17 October 2024. Many Member States were late, and on 9 July 2026 the Commission referred four of them to the Court of Justice for failing to transpose it. Organisations operating in several countries need to check the status and detail of each national law.
The core obligations for entities sit in Articles 20 to 23. Management bodies must approve the cybersecurity risk management measures, oversee their implementation, follow training, and can be held liable for infringements. Entities must take appropriate and proportionate technical, operational and organisational measures, covering at least the ten areas in Article 21(2). Significant incidents must be reported to the CSIRT or competent authority in stages: an early warning within 24 hours, an incident notification within 72 hours, and a final report within one month.
Commission Implementing Regulation (EU) 2024/2690 sets the technical and methodological requirements, and the criteria for a significant incident, for digital infrastructure and digital service providers such as cloud, data centre, managed service and managed security service providers. In January 2026 the Commission proposed targeted amendments to NIS 2; these remain a proposal until adopted. Financial entities subject to DORA follow DORA for the equivalent risk management and reporting requirements. In the UK, see the NCSC CAF v3.2.