Cryptocurrency markets square measure suburbanized, which suggests they're not issued or backed by a central authority like a government. Instead, they meet a network of computers. However, cryptocurrencies will be bought and sold via exchanges and hold on in ‘wallets’ . Unlike ancient currencies, cryptocurrencies exist solely as a shared digital record of possession, hold on on a blockchain. once a user needs to send cryptocurrency units to a different user, they send it thereto user’s digital billfold.