A cryptocurrency is a digital coin, designed to be transferred between people in virtual transactions. Cryptocurrencies exist only as data and not as physical objects; you cannot actually hold a Bitcoin in your hand or keep Ethereum in your safe. Owning a Bitcoin means you have the collective agreement of each and every computer on the Bitcoin network that it is currently owned by you and – more importantly – that it was legitimately created by a miner.
Cryptocurrencies are handled like cash but are mined like gold. Mining is simply the process of verifying a crypto transaction. People around the world transfer e-coins from wallet to wallet, while miners use computer-processing power to maintain the blockchain and verify these transactions.