The Communication Infrastructure must ensure that information cannot go outside the assigned communication channels. For the technical implementation this implies that:
all unauthorised and/or uncontrolled access to other networks is strictly prohibited. This includes the interconnectivity to the Internet,
data leakage to other systems on the network may not occur; e.g. interconnection of different IP VPNs is not allowed.
Apart from the aforementioned technical restrictions it causes, it also impacts the communications infrastructure’s helpdesk. The helpdesk may not release any information with regard to the Central SIS II to any party else than the one responsible for the operational management for the Central SIS II.