where the existence of digital money is fully decentralized, secure, and is a digital currency whose production is controlled by cryptography. Digital Currency is not issued by the central bank and its value does not depend on bank policies. Unlike currencies in general where new money can be introduced into the money supply through Quantitative Easing (QE), the price of digital currency is entirely based on supply and demand. Bitcoin, created in 2009, is the first digital currency. There are currently more than 800 alternative digital currencies, called Altcoins, such as Ethereum, Ripple, and Litecoin.