Ethereum may act as a virtual marketplace for applications, games, and, most significantly, financial services because, as its creators put it, it is the first "programmable blockchain" in the world. All of this is supported by the Ethereum network's payment mechanism, which runs on the cryptocurrency Ether. Because it is decentralized, total protection from theft or fraud is guaranteed. I hope I was able to address your inquiry regarding "What is Ethereum?". You may get more information about this here, in any case.
