Decentralized Finance (DeFi) leverages blockchain technology to eliminate the control of banks over financial services, providing real-time, transparent transactions where users maintain custody of their assets. While DeFi offers significant benefits, such as programmability and security, it also presents risks including technological immaturity, lack of consumer protection, high collateral requirements, and the need for secure private key management. As the DeFi landscape evolves, users must navigate these advantages and challenges carefully.