NIS2 Implementing Regulation

(18) In order to protect against cyber threats and support the prevention and containment of data breaches, the relevant entities should implement network security solutions. Typical solutions for network security include the use of firewalls to protect the relevant entities’ internal networks, the limitation of connections and access to services where connections and access are absolutely needed, and the use of virtual private networks for remote access and allowing connections of service providers only after an authorisation request and for a set time period such as the duration of a maintenance operation.