Crypto, short for cryptocurrency, refers to digital or virtual currencies that use cryptography for security. These currencies operate on a technology called blockchain, which is a decentralized ledger that records all transactions across a network of computers. Popular examples include Bitcoin and Ethereum, which have gained significant attention and adoption in recent years. The appeal of crypto lies in its potential for high returns and the promise of a decentralized financial system. Many investors view it as a hedge against inflation and a way to diversify their portfolios. However, the market is highly volatile, and understanding the risks is crucial for anyone looking to invest.