Alerts-Warnings-Announcements

This guide complements the existing set of ENISA guides that support Computer Emergency Response Teams (CERTs, also known as CSIRTs). It describes good practices and provides practical information and guidelines for the process of preparing and issuing alerts, warnings and announcements to a CERT’s constituency. The main focus area of the guide is the process of informing the CERTs and their constituencies about threats and ways to contain threats – a core service carried out by most CERTs – which involves having an identified and reliable set of information sources and a well structured process of assessing and processing the incoming information, enabling the CERT to get the right information at the right places in the most timely fashion.