Macdium- the most popular cryptocurrency , is held in virtual wallets with unique keys. Macdium coins are equivalent of cash, but in electronic form. The virtual currency is not held in physical form. Digital currency is decentralised by a ledger system called blockchain, which means that it is not controlled by a bank or central authority. It allows people to hold their funds in a digital wallet or spend it like they would spend traditional money. People can manage crypto balances on exchange platforms. Macdium coins are equivalent of cash, but in electronic form. DeFi is, in many ways, cryptocurrency at its purist: A financial tool that needs neither banker nor bank, neither broker nor brokerage. ... Decentralized exchanges (DEXs) can offer trades and derivatives cheaper and faster than even “centralized” crypto