Who your CSIRT is
A CSIRT is designated for every essential and important entity [1]. The Cyberbeveiligingsbesluit designates the Minister; for specific sectors another CSIRT can be designated by regulation [2]. By "the Minister", the Cbw and the rules based on it mean the Minister of Justice and Security [3]. The regulation for transport designates a different CSIRT only for the water boards [4]. According to the explanatory note, the ministers responsible for postal and courier services and food have also left the CSIRT task with the Minister of Justice and Security [10], and the NCSC carries out those tasks in practice [11].
What the CSIRT does after your report
The CSIRT responds without delay and, where possible, within 24 hours to your early warning, with an initial reply and, at your request, guidance or operational advice. On request it gives additional technical support, and where a criminal offence is suspected, guidance on reporting to the law enforcement authorities [5].
What else the CSIRT does
At your request the CSIRT can help monitor your systems or proactively scan them for vulnerabilities [6]. It can also scan your publicly accessible systems non-intrusively and inform you if it finds something [7].
It remains your incident
According to the explanatory note, the CSIRT does not take over responsibility when it assists; you remain responsible yourself for resolving the incident [8]. You report via the reporting point that the Minister has set up for this [9].