Cryptocurrency is a type of digital or virtual currency that uses cryptography for security. It operates on decentralized networks based on blockchain technology, which is a distributed ledger maintained by a network of computers (nodes). Unlike traditional currencies issued by governments, cryptocurrencies are not controlled by any central authority, making them resistant to censorship and fraud. Popular examples include Bitcoin, Ethereum, and Litecoin. Cryptocurrencies can be used for various purposes, such as online payments, investments, or powering decentralized applications (dApps).
