 Besides augmenting existing surveillance systems, ICT techniques are nowadays mainly used in the digital domain, typically grouped together under the term “surveillance capitalism” (Zuboff 2019). Social media and other online systems are used to gather large amounts of data about individuals – either “voluntary”, because users subscribe to a specific service (Google, Facebook), or involuntary by gathering all kinds of user related data in a less transparent manner. Data analysis and machine learning techniques are then used to generate prediction models of individual users that can be used, for example, for targeted advertisement, but also for more malicious intents such as fraud or micro-targeting to influence elections (Albright 2016, Other Internet Resources) or referenda such as Brexit (Cadwalladr 2019, Other Internet Resources).