While there are many common issues in the field of cyber security, including the need to safeguard critical infrastructure to protect against possible attacks, there has been no activity linking the individual national Computer Security Incident Response Teams (CSIRT) in the Danube Region. CSDanube aimed at strengthening the cooperation of CSIR teams and jointly combating cybercrime in the entire region. Cyber crime is generally not bound to borders, yet some types of attacks are regionally targeted. The project was able to establish an information flow among the individual CSIR teams. The goal was to establish an infrastructure for information exchange that works also after the project’s completion, based on ongoing needs (attacks). The above-mentioned activities, together with the implemented trainings, strengthened the experts’ capacities.