NIS 2 Directive, Preamble 91-100.
(91) The coordinated security risk assessments of critical supply chains, in light of the features of the sector concerned, should take into account both technical and, where relevant, non-technical factors including those defined in Recommendation (EU) 2019/534, in the EU coordinated risk assessment of the cybersecurity of 5G networks and in the EU Toolbox on 5G cybersecurity agreed by the Cooperation Group.
To identify the supply chains that should be subject to a coordinated security risk assessment, the following criteria should be taken into account:
(i) the extent to which essential and important entities use and rely on specific critical ICT services, ICT systems or ICT products;
(ii) the relevance of specific critical ICT services, ICT systems or ICT products for performing critical or sensitive functions, including the processing of personal data;
(iii) the availability of alternative ICT services, ICT systems or ICT products;
(iv) the resilience of the overall supply chain of ICT services, ICT systems or ICT products throughout their lifecycle against disruptive events; and
(v) for emerging ICT services, ICT systems or ICT products, their potential future significance for the entities’ activities.
Furthermore, particular emphasis should be placed on ICT services, ICT systems or ICT products that are subject to specific requirements stemming from third countries.
(92) In order to streamline the obligations imposed on providers of public electronic communications networks or of publicly available electronic communications services, and trust service providers, related to the security of their network and information systems, as well as to enable those entities and the competent authorities under Directive (EU) 2018/1972 of the European Parliament and of the Council and Regulation (EU) No 910/2014 respectively to benefit from the legal framework established by this Directive, including the designation of a CSIRT responsible for incident handling, the participation of the competent authorities concerned in the activities of the Cooperation Group and the CSIRTs network, those entities should fall within the scope of this Directive.
The corresponding provisions laid down in Regulation (EU) No 910/2014 and Directive (EU) 2018/1972 related to the imposition of security and notification requirements on those types of entity should therefore be deleted. The rules on reporting obligations laid down in this Directive should be without prejudice to Regulation (EU) 2016/679 and Directive 2002/58/EC.
(93) The cybersecurity obligations laid down in this Directive should be considered to be complementary to the requirements imposed on trust service providers under Regulation (EU) No 910/2014. Trust service providers should be required to take all appropriate and proportionate measures to manage the risks posed to their services, including in relation to customers and relying third parties, and to report incidents under this Directive. Such cybersecurity and reporting obligations should also concern the physical protection of the services provided. The requirements for qualified trust service providers laid down in Article 24 of Regulation (EU) No 910/2014 continue to apply.
(94) Member States can assign the role of the competent authorities for trust services to the supervisory bodies under Regulation (EU) No 910/2014 in order to ensure the continuation of current practices and to build on the knowledge and experience gained in the application of that Regulation. In such a case, the competent authorities under this Directive should cooperate closely and in a timely manner with those supervisory bodies by exchanging relevant information in order to ensure effective supervision and compliance of trust service providers with the requirements laid down in this Directive and in Regulation (EU) No 910/2014.
Where applicable, the CSIRT or the competent authority under this Directive should immediately inform the supervisory body under Regulation (EU) No 910/2014 about any notified significant cyber threat or incident affecting trust services as well as about any infringements by a trust service provider of this Directive. For the purpose of reporting, Member States can, where applicable, use the single entry point established to achieve a common and automatic incident reporting to both the supervisory body under Regulation (EU) No 910/2014 and the CSIRT or the competent authority under this Directive.
(95) Where appropriate and in order to avoid unnecessary disruption, existing national guidelines adopted for the transposition of the rules related to security measures laid down in Articles 40 and 41 of Directive (EU) 2018/1972 should be taken into account in the transposition of this Directive, thereby building on the knowledge and skills already acquired under Directive (EU) 2018/1972 concerning security measures and incident notifications.
ENISA can also develop guidance on security requirements and on reporting obligations for providers of public electronic communications networks or of publicly available electronic communications services to facilitate harmonisation and transition and to minimise disruption. Member States can assign the role of the competent authorities for electronic communications to the national regulatory authorities under Directive (EU) 2018/1972 in order to ensure the continuation of current practices and to build on the knowledge and experience gained as a result of the implementation of that Directive.
(96) Given the growing importance of number-independent interpersonal communications services as defined in Directive (EU) 2018/1972, it is necessary to ensure that such services are also subject to appropriate security requirements in view of their specific nature and economic importance. As the attack surface continues to expand, number-independent interpersonal communications services, such as messaging services, are becoming widespread attack vectors.
Malicious perpetrators use platforms to communicate and attract victims to open compromised web pages, therefore increasing the likelihood of incidents involving the exploitation of personal data, and, by extension, the security of network and information systems. Providers of number-independent interpersonal communications services should ensure a level of security of network and information systems appropriate to the risks posed.
Given that providers of number-independent interpersonal communications services normally do not exercise actual control over the transmission of signals over networks, the degree of risks posed to such services can be considered in some respects to be lower than for traditional electronic communications services. The same applies to interpersonal communications services as defined in Directive (EU) 2018/1972 which make use of numbers and which do not exercise actual control over signal transmission.
(97) The internal market is more reliant on the functioning of the internet than ever. The services of almost all essential and important entities are dependent on services provided over the internet. In order to ensure the smooth provision of services provided by essential and important entities, it is important that all providers of public electronic communications networks have appropriate cybersecurity risk-management measures in place and report significant incidents in relation thereto.
Member States should ensure that the security of the public electronic communications networks is maintained and that their vital security interests are protected from sabotage and espionage. Since international connectivity enhances and accelerates the competitive digitalisation of the Union and its economy, incidents affecting undersea communications cables should be reported to the CSIRT or, where applicable, the competent authority. The national cybersecurity strategy should, where relevant, take into account the cybersecurity of undersea communications cables and include a mapping of potential cybersecurity risks and mitigation measures to secure the highest level of their protection.
(98) In order to safeguard the security of public electronic communications networks and publicly available electronic communications services, the use of encryption technologies, in particular end-to-end encryption as well as data-centric security concepts, such as cartography, segmentation, tagging, access policy and access management, and automated access decisions, should be promoted. Where necessary, the use of encryption, in particular end-to-end encryption should be mandatory for providers of public electronic communications networks or of publicly available electronic communications services in accordance with the principles of security and privacy by default and by design for the purposes of this Directive.
The use of end-to-end encryption should be reconciled with the Member States’ powers to ensure the protection of their essential security interests and public security, and to allow for the prevention, investigation, detection and prosecution of criminal offences in accordance with Union law. However, this should not weaken end-to-end encryption, which is a critical technology for the effective protection of data and privacy and the security of communications.
(99) In order to safeguard the security, and to prevent abuse and manipulation, of public electronic communications networks and of publicly available electronic communications services, the use of secure routing standards should be promoted to ensure the integrity and robustness of routing functions across the ecosystem of internet access service providers.
(100) In order to safeguard the functionality and integrity of the internet and to promote the security and resilience of the DNS, relevant stakeholders including Union private-sector entities, providers of publicly available electronic communications services, in particular internet access service providers, and providers of online search engines should be encouraged to adopt a DNS resolution diversification strategy. Furthermore, Member States should encourage the development and use of a public and secure European DNS resolver service.
Note: This is the final text of the NIS 2 Directive. The full name is "Directive (EU) 2022/2555 of the European Parliament and of the Council of 14 December 2022 on measures for a high common level of cybersecurity across the Union, amending Regulation (EU) No 910/2014 and Directive (EU) 2018/1972, and repealing Directive (EU) 2016/1148 (NIS 2 Directive)".
Articles, Directive (EU) 2022/2555 (NIS 2 Directive):
https://www.nis-2-directive.com/NIS_2_Directive_Articles.html