The internet of things (IoT) has cleared the door for sophisticated functionalities to be introduced into the healthcare business. IoT systems handle a significant amount of data and require 6G network connectivity, power, and storage to convert it into useful information. The internet of medical things refers to the use of IoT-based internet-enabled medical devices in the healthcare business (IoMT). The lack of security standardization and energy-consuming cryptographic algorithms in man-in-the-middle attacks, session hijacking, and wireless encryption breaking are all possible security problems with IoMT. On the other hand, because of its decentralised nature, blockchain may be used to address IoT problems. The widespread adoption of decentralised blockchain technology in IoT has significantly reduced the danger of sensitive healthcare data being exposed. The authors combine blockchain technology with IoMT (B-IoMT) in this chapter to enable secure data transfer over a 6G network connection. The blockchain's security characteristics aid in achieving tamper-proof data transfer in IoMT.
