$BTC Cryptocurrency is a digital or virtual currency that uses cryptography for security and operates on a decentralized technology called blockchain. Popular cryptocurrencies include Bitcoin, Ethereum, Litecoin, and Ripple. The total crypto market capitalization exceeds $1 trillion, with thousands of different cryptocurrencies. Cryptocurrencies can be bought, sold, and traded on various online exchanges. Their value is determined by market demand and supply. Cryptocurrencies offer a secure, transparent, and decentralized way to make transactions, but their prices can be highly volatile. As the market continues to evolve, cryptocurrencies are becoming increasingly popular for investment and transactional purposes. Usage is growing rapidly.