Digital Currency is a form of currency that is stored and exchanged electronically. Bitcoin is the most well-known example of a digital currency, and it was created in 2009 by an anonymous person or group known as Satoshi Nakamoto. Bitcoin is decentralized, meaning it is not controlled by any government or central bank. Transactions are recorded on a public ledger called the blockchain, and users can send and receive bitcoins without the need for a third-party intermediary. Bitcoin is also secure, as it uses cryptography to protect transactions from being tampered with.