[...] * In this regard, an import role is played by massive interconnection, i.e. massive number of objects/things/sensors/devices connected through the information and communications infrastructure to provide value-added services, in particular in the context of smart cities initiatives. The unprecedented availability of data raises obvious concerns for data protection, but also stretch the applicability of traditional safeguards such as informed consent and anonymization (see Kokkinakos et al. 2016).