Cryptocurrency is a decentralized digital currency secured using cryptography, making it impossible to counterfeit. Operating on blockchain technology—a distributed digital ledger—these assets eliminate the need for intermediaries like banks, enabling direct peer-to-peer transactions. Bitcoin, as a pioneer, and Ethereum are the most popular examples, followed by thousands of other altcoins. Its main advantages include transparency, high security, and global accessibility. Although it offers the potential for high returns, crypto is known for extreme price volatility, making it a high-risk asset that requires independent analysis (DYOR). Users store them in digital wallets and trade on crypto exchanges.