Cryptocurrency is a form of digital money that uses cryptography to secure transactions. Unlike traditional currencies, many cryptocurrencies operate on decentralized networks called blockchains. Bitcoin, Ethereum, and Solana are popular examples. People use cryptocurrencies for payments, investing, trading, and transferring money across borders. Their prices can change rapidly due to market demand, news, regulations, and investor sentiment. Although cryptocurrency offers opportunities for innovation and potential profits, it also carries risks, including scams, hacking, and significant financial losses. Before investing, research each project carefully, understand the risks, and never invest money you cannot afford to lose.