A letter from the workshop co-chairs

The first European Workshop on Maritime Systems Resilience and Security (MARESEC) was dedicated to the research on Resilience, Security, Technology and related Ethical, Legal, and Social Aspects (ELSA) in the context of Maritime Systems, including but not restricted to (Offshore/Onshore) Infrastructures, Navigation and Shipping and Autonomous Systems. The event, which was organized by the Institute for the Protection of Maritime Infrastructures of the German Aerospace Center (DLR), occurred virtually on June, 14th 2021 and counted on 86 participants. Out of all submitted extended abstracts, 26 submissions had been selected for presentation. Additionally, 3 works of undergraduate and graduate students have been presented (the final schedule can be found in the appendix). The authors are affiliated to institutions from Austria, Denmark, France, Germany, Italy, Norway, Portugal, South Korea, Spain and United Kingdom