The Unit Docs

Account Liquidations

Suppose an account's collateralization ratio falls below the liquidation level. In that case, the account owner will have 72 hours to bring the collateral back over the minimum requirement by minting or burning UNIT. However, after 72 hours, anyone can claim the collateral locked in the contract by burning the required amount of UNIT set in the liquidation parameters.
The vault owner will pay a liquidation fee for the risk added to the system.