Machine-to-Machine (M2M) paymentMachine-to-Machine (M2M) payment is the integration of the payment process into the fully automated processing of business transactions; in short, the possibility of autonomous machine-to-machine payment. M2M payments represent an important further development stage of the Internet of Things (IoT). For example, a refrigerator could automatically reorder and pay for milk as soon as it is used up. (Publication date 15/03/2021)