#MetaplanetBTCPurchase Cryptocurrency is a digital currency secured by cryptography, preventing counterfeiting. Unlike traditional money, it operates on decentralized blockchain networks, meaning no central authority controls it. Bitcoin was the first and remains the largest. Cryptocurrencies are used for online payments, peer-to-peer transfers, or as speculative investments. They offer benefits like lower fees and faster global transfers, but come with risks due to price volatility and regulatory uncertainty.