$USDC Cryptocurrency is a digital or virtual form of money that uses cryptography for security. Unlike traditional currencies issued by governments, cryptocurrencies operate on decentralized networks based on blockchain technology. Bitcoin, created in 2009, was the first and remains the most well-known crypto. Others like Ethereum, Solana, and Cardano offer additional functionality, such as smart contracts. Cryptocurrencies can be used for transactions, investments, and decentralized applications. They offer benefits like transparency, lower fees, and borderless transfers, but also face risks like volatility, regulation, and security threats. As the technology evolves, crypto continues to reshape finance, raising both opportunities and challenges worldwide.