Cryptocurrency, or crypto, is a digital or virtual form of currency that uses cryptography for secure transactions, making it decentralized and independent of traditional banking systems. Built on blockchain technology, crypto enables peer-to-peer exchanges and is widely known for assets like Bitcoin and Ethereum. Cryptocurrencies offer new financial opportunities, from decentralized finance (DeFi) to smart contracts, allowing users to engage in transactions, investment, and value transfer without intermediaries. With global accessibility, crypto has become an innovative part of the digital economy, appealing to investors, tech enthusiasts, and those interested in financial independence.