Cryptocurrency is a digital or virtual form of currency that utilizes cryptography for secure financial transactions and control the creation of new units. It operates on decentralized networks called blockchains, where transactions are recorded and verified by a network of computers, ensuring transparency and immutability. Unlike traditional fiat currencies, cryptocurrencies are not issued or regulated by any central authority, such as a government or financial institution. Instead, they rely on cryptographic techniques to secure transactions and manage the supply. Cryptocurrencies offer benefits such as fast and low-cost transactions, global accessibility, and potential for investment and speculation. Bitcoin, Ethereum, and Ripple are some prominent examples of cryptocurrencies that have gained widespread adoption and market value.