#ActiveUserImpact Cryptocurrency (crypto) is a digital or virtual currency secured by cryptography, making it nearly impossible to counterfeit or double-spend. It operates on decentralized blockchain technology, ensuring transparency and security without the need for intermediaries like banks. Bitcoin, created in 2009, was the first cryptocurrency, followed by Ethereum, Binance Coin, and others. Cryptos can be used for payments, investment, and decentralized applications. Prices are highly volatile, influenced by demand, regulation, and market trends. While offering benefits like fast transactions and financial inclusion, crypto also faces challenges such as regulatory uncertainty, security risks, and environmental concerns due to energy consumption.