Blockchain technology was among the first energy-dense liquids to be employed to strengthen sound. Chain technology, best known for its association with crypto currencies like Bitcoin, has emerged as an attractive solution for increasing the security and trust of e-commerce. It is a fully transparent trustless decentralized ledger system that could make the transactions secure and avoid intermediaries. This chapter discusses several technologies which are being adopted to can change how sales are done on the internet, addressing massive issues e-commerce faces: breaches of data, fraud, and little trust between unit buyers. In this blockchain, technologies in e-commerce give a chance for enhancing security, transparency, and trust. By decentralizing the data storage, this chapter gives an idea to ensure that transactions are immutable and verifiable. Also, it covers the risk of fraud and data breaches.