#TrumpTaxCuts Cryptocurrencies are a type of digital asset that rely on blockchain technology to secure transactions and verify ownership. *Bitcoin*, the first and most popular cryptocurrency, was launched in 2009 by an anonymous person or group under the name *Satoshi Nakamoto*. Cryptocurrencies are decentralized, meaning they are not controlled by governments or financial institutions. They are used for digital transactions, enabling quick and secure money exchanges online. Despite their volatility, cryptocurrencies are gaining attention as an investment tool and a form of payment. However, they face challenges such as regulatory changes and the environmental impact of mining.