#TradingPairs101 Cryptocurrencies are digital currencies that use blockchain technology to ensure security and transparency in transactions. Bitcoin, launched in 2009, was the first and remains the most well-known. Since then, thousands of cryptocurrencies have emerged, such as Ethereum, which allows smart contracts. Cryptos are decentralized, meaning they are not controlled by governments or banks. Their volatility is high, offering investment opportunities but also significant risks. Despite concerns about regulation and security, cryptocurrencies are gaining acceptance in commerce and investment, transforming the global financial landscape.