Ethereum is the community-run technology powering the cryptocurrency ether (ETH) and thousands of decentralized applications
Ethereum is a technology for building apps and organizations, holding assets, transacting and communicating without being controlled by a central authority. There is no need to hand over all your personal details to use Ethereum - you keep control of your own data and what is being shared. Ethereum has its own cryptocurrency, Ether, which is used to pay for certain activities on the Ethereum network.
Ethereum is an open access to digital money and data-friendly services for everyone - no matter your background or location. It’s a community-built technology behind the cryptocurrency ether (ETH) and thousands of applications you can use today.
Ethereum is not controlled by any one entity. It exists solely through the decentralized participation and cooperation of the community. Ethereum makes use of nodes (a computer with a copy of the Ethereum blockchain data) run by volunteers to replace individual server and cloud systems owned by major internet providers and services.
These distributed nodes, run by individuals and businesses all over the world, provide resiliency to the Ethereum network infrastructure. It is therefore much less vulnerable to hacks or shutdowns. Since its launch in 2015, Ethereum has never suffered downtime. There are thousands of individual nodes running Ethereum network. This makes Ethereum one of the most decentralized cryptocurrencies out there, second only to bitcoin.