Cryptocurrency is a form of digital currency that uses cryptography to secure transactions and control the creation of new units. Unlike traditional fiat currencies issued by governments and central banks, cryptocurrencies operate on decentralized networks built on blockchain technology.
The core idea behind cryptocurrency is decentralization. Instead of relying on a single authority, transactions are verified and recorded by a distributed network of computers called nodes. This structure makes cryptocurrencies resistant to censorship, fraud, and manipulation.
Bitcoin, created in 2009, was the first cryptocurrency and remains the most well-known. Since then, thousands of other cryptocurrencies have emerged, each designed to serve different purposes such as smart contracts, payments, decentralized finance (DeFi), and digital ownership.
Cryptocurrencies allow users to transfer value globally without intermediaries. Transactions are typically faster and cheaper than traditional banking transfers, especially across borders. As adoption grows, cryptocurrencies are increasingly used for trading, investment, payments, and blockchain-based applications.
