Cryptocurrency is a digital or virtual currency that uses cryptography for security. It is decentralized, meaning it is not subject to government or financial institution control. Cryptocurrencies are often traded on decentralized exchanges and can also be used to purchase goods and services. Bitcoin was the first and most well-known cryptocurrency, but there are now thousands of different cryptocurrencies in existence. Some of the most popular cryptocurrencies include Ethereum, Litecoin, and B