According to its creators, Ethereum is the first "programmable blockchain" in the world, enabling it to function as a virtual marketplace for software, games, and, most significantly, financial services. The Ethereum network's payment mechanism, Ether, which is a cryptocurrency, provides the foundation for everything. Complete protection against theft or fraud is guaranteed by its decentralized structure. Your inquiry, "What is Ethereum?," I hope I was able to address. For additional information on this, you can look here.