How Does the Use of a Fallback Oracle Mitigate Risk?
A fallback oracle is a secondary, independent data source that a smart contract is programmed to switch to if the primary oracle fails to provide an update or provides a data point that is significantly outside a pre-defined range of reasonableness. This redundancy ensures that the smart contract can continue to operate with verified data, preventing a liveness failure or a single, drastically incorrect data point from causing an unfair liquidation or settlement.