Ethereum is a blockchain that enables the creation of decentralised applications and the use of smart contracts. The cryptocurrency used to conduct transactions on the Ethereum blockchain is called ETH.
ETH is used to pay for gas fees on the Ethereum network, which is the cost of performing a transaction or executing a smart contract. The gas fee is paid to the network's miners, who process and verify transactions on the blockchain.
To use ETH, you need to have an Ethereum wallet, such as Metamask, which stores your ETH and allows you to send and receive it. You can purchase ETH from a cryptocurrency exchange.
It's important to keep your ETH safe and secure by following best practices for crypto security, such as using a hardware wallet, keeping your private keys safe, and enabling two-factor authentication on your wallet. If you suspect that your wallet or ETH has been compromised, take immediate action to protect your assets by transferring them to a new, clean wallet and contacting support for further assistance.