The European Central Bank (ECB) recently announced that it will start an investigative phase of the digital euro project in Q4 2021. While this was not a big surprise to many who closely follow the worldwide discussions about CBDCs and digital money, the ECB released a very interesting report on experiments that were conducted over the past 9 months. This report and its results caught many by surprise. It shows that the ECB has already tested different technologies as the core infrastructure for a potential digital euro and investigates how to mimic cash-like privacy and offline payments in a digital world. This article provides a brief overview about the background of why the ECB looks into the digitization of physical cash, which experiments it has already conducted, and which results these experiments produced.