The thesis deals with the liability issue of connected and intelligent products in the IoT for product liability. Product liability is currently facing challenges due to the risks of an increasingly digitized world. The thesis examines, on the basis of the liability requirements, whether the existing legal framework is suitable or legislative measures are needed to address the risks. One focus of the analysis is the question of whether the software used in the innovative products can be covered by the notion of product. In this respect, the thesis argues de lege lata for a new interpretation of the approach to corporeality. De lege ferenda, the cautious development of product liability is recommended.