It's over-collaterized, so if you fall below the 150% minimum collateral ratio, maker smart contract could liquidate the asset to cover the loan and then return

It's over-collaterized, so if you fall below the 150% minimum collateral ratio, maker smart contract could liquidate the asset to cover the loan and then return the remaining 50%-liquidation fees back to you. As long as you're conservative in your borrowing (as in you borrow up to 25%-50% of your holding), your chances of getting liquidated are pretty slim.