Since their emergence in 2009, cryptocurrencies have experienced rapid and widespread adoption, with over two thousand now in circulation. Among the most traded and recognized are Bitcoin, Ethereum, Ripple, and Litecoin, dominating markets worldwide. At the core of cryptocurrencies lies blockchain technology — a decentralized system distributed across numerous computers that securely manages and records transactions. This technology is globally valued for its transparency, resilience, and exceptional security, making digital currencies a unique and powerful asset class in modern finance.