Cyber security has become a key issue in virtually all domains of public sector ICT. High profile incidents have put the topic also high on the political agenda. The view of cyber security over time has changed; from an add-on to existing systems to an integral part of system design, implementation, operation and management. The General Data Protection Regulation heightened this even more. Cyber security however is not only a technical endeavour - which is challenging enough in itself - but also understood as an administrative and organizational challenge, which ensures that technological solutions are leveraged to the best of their abilities and in a sustainable way. This ultimately makes cyber security a cross-platform and multi-disciplinary approach, which spans the entire domain of eGovernment and eDemocracy solutions. Beyond this focal topic, the conference continues to address the whole breadth of ICT in the public sector and democratic decision making, with a particular focus on the specificities of the Danube Region. This year's volume therefore again attempts to contribute to the exchange of academic knowledge and practical experience in this domain among the countries of the region.