Flash loans have emerged as a powerful liquidity mechanism within the DeFi ecosystem, allowing users to borrow assets from on-chain liquidity pools without upfront collateral, provided that the borrowed amount and a small fee are returned within the same transaction. This model enables users to access substantial capital for activities like arbitrage and leverage position creation but also poses risks to certain DeFi protocols, especially those reliant on centralized price oracles. Malicious actors can exploit flash loans to manipulate market prices and execute attacks on DeFi protocols, leading to potential financial losses for users. The vulnerability often lies not in flash loans themselves but in the protocols that depend on a single source for price data. Chainlink's decentralized oracle network, which aggregates data from multiple sources, offers a solution by providing tamper-resistant price feeds that mitigate the risk of price manipulation attacks. By integrating Chainlink, developers can enhance the security and reliability of their smart contracts, ensuring the sustainability and trustworthiness of the DeFi ecosystem.