#SouthKoreaCryptoPolicy Cryptocurrency, or crypto, is a digital or virtual form of money that uses cryptography for secure transactions. Unlike traditional currencies, it operates on decentralized networks based on blockchain technology, which ensures transparency and prevents fraud. Bitcoin, launched in 2009, was the first and remains the most well-known cryptocurrency. Since then, thousands of alternative coins (altcoins) like Ethereum, Binance Coin, and Solana have emerged, each offering unique features. Cryptocurrencies can be used for online purchases, investments, or decentralized applications. Though volatile and often debated, crypto represents a shift toward decentralized finance (DeFi), empowering individuals with control over their money without relying on banks.