#USCryptoWeek Cryptocurrency is a form of digital or virtual currency that uses cryptography for secure transactions and operates on decentralized networks called blockchains. Unlike traditional currencies issued by governments (like the dollar or euro), cryptocurrencies are not controlled by any central authority. Bitcoin, launched in 2009, was the first cryptocurrency and remains the most well-known. Others like Ethereum, Binance Coin, and Solana have since emerged, offering different features and applications beyond just digital payments.