Protocol Liquidation Engines

Protocol liquidation engines are automated smart contract systems responsible for identifying under-collateralized positions and executing their liquidation in a decentralized manner. These engines monitor the collateralization ratio of every user position in real-time and trigger a liquidation process the moment it drops below the protocol's threshold.

The process typically involves selling the borrower's collateral to repay the loan, often at a discount to market price to incentivize external actors to perform the liquidation. These engines are critical to the stability of DeFi lending protocols, ensuring that bad debt does not accumulate and compromise the protocol's solvency.

They are designed to be transparent, trustless, and resilient, though they can also be points of failure if the code contains vulnerabilities or if oracle data is manipulated.