CryptocurrencyCryptocurrency is decentralized digital currency secured by cryptography. Cryptocurrency utilizes cryptographic protocols to record ownership and prevent counterfeits (when ownership... Read More exchanges are digital marketplaces where traders buy and sell cryptocurrencies using fiat and cryptocurrency. Currently, there are over 200 cryptocurrency marketsA cryptocurrency market is a digital marketplace where traders can buy and sell cryptocurrencies using different fiat currencies or altcoins.... Read More in operation worldwide. Well-known exchanges include CoinbaseA coinbase is a transaction that spends or creates newly minted coins. It is the first transaction in a block.... Read More, Binance, and Kraken.