The 6th Network and Information Security (NIS’19) Summer School, took place in Crete, Greece from 16 to 20 of September 2019. This event, having a different “special theme” every year, is jointly organised by the European Union Agency for cybersecurity (ENISA) and the Foundation for Research and Technology – Hellas (FORTH). The theme for this year was “Security Challenges of Emerging Technologies”. Towards this objective, ENISA and FORTH, brought together to this Summer School a distinguished faculty from around the world with the purpose to identify current trends, threats and opportunities against the background of recent advances on NIS measures and policies. The SPIDER project was included -among other projects- in the event flyer that was disseminated in the NIS’19 summer-school and was enlisted among the event sponsors.