Crypto or cryptocurrency is a digital currency that uses blockchain technology to record transactions securely and transparently. Unlike regular money controlled by banks or governments, crypto is decentralized so transactions can be made directly between users. Popular examples of cryptocurrencies are Bitcoin and Ethereum. Many people use crypto as an investment because its value can increase rapidly, although the risks are also high. In addition to investment, crypto is used in digital payments, NFTs, and modern financial applications. The development of this technology continues to grow and is beginning to influence the global economic system as well as the way humans conduct financial transactions in the future.