Criptomoneda, or crypto, is a digital form of currency that operates on blockchain technology. It is decentralized, meaning it is not controlled by any government or central authority. Popular cryptocurrencies like Bitcoin, Ethereum, and  Litecoin are used for online transactions, investments, and trading. Cryptocurrencies utilize cryptographic methods to secure transactions, ensuring transparency and security. They offer features like low transaction fees, global accessibility, and anonymity. However, crypto markets are highly volatile, making them risky for investors. Additionally, cryptocurrencies are used in developing decentralized applications (DApps) and contratos inteligentes, expanding their functionality beyond just currency to power innovative financial solutions.