Member States should designate one of its CSIRTs as a coordinator, acting as a trusted intermediary between the reporting natural or legal persons and the manufacturers or providers of ICT products or ICT services, which are likely to be affected by the vulnerability, where necessary. The tasks of the CSIRT designated as coordinator should include identifying and contacting the entities concerned, assisting the natural or legal persons reporting a vulnerability, negotiating disclosure timelines and managing vulnerabilities that affect multiple entities (multi-party coordinated vulnerability disclosure). Where the reported vulnerability could have significant impact on entities in more than one Member State, the CSIRTs designated as coordinators should cooperate within the CSIRTs network, where appropriate.