Cryptocurrency is a digital or virtual currency that uses cryptography for security and operates independently of a central bank. It's decentralized, meaning it's not controlled by any government or financial institution. Cryptocurrencies can be used to buy goods and services, transfer funds, and trade in markets. Popular ones include Bitcoin, Ethereum, and Litecoin. The global crypto market cap is around $3.21 trillion, with Bitcoin dominating the market. Crypto transactions are recorded on a public ledger called a blockchain, ensuring transparency and security. Some use proof-of-work, while others use proof-of-stake consensus mechanisms ¹.$BTC $ETH my portfolio mix. Follow to see how I invest!