Despite the increasing influence of cyber activities on our everyday lives, researchers encounter difficulties in understanding this subject matter and in legally qualifying these activities and their effects. Current discussions tend to concentrate on distinct aspects, which lead to a fragmented, rather than a holistic understanding of the legal aspects of cyber activities. This paper approaches the legal dimension of cyber activities from a more general direction and searches for elements and legal principles that may be found in international law, including space law, and can apply to cyber activities.