-> Digitisation also changes politics and the state. State sovereignty is massively challenged, especially with regard to administrative action, digital infrastructure, and democratic processes. -> Digital sovereignty refers to the exclusive self-determination of legal entities such as states and natural persons under the conditions of digitisation. -> In order to (re)establish digital sovereignty, it is necessary to act consistently on various levels (national and international), both in technical, organisational and regulatory terms, and not least in public discourse.