It appears that some states have a "non recourse" law so your debt is limited to the property value.
>There are currently 12 non-recourse states: Alaska, Arizona, California, Connecticut, Hawaii Idaho, Minnesota, North Carolina, North Dakota, Texas, Utah, and Washington
https://www.legalmatch.com/law-library/article/what-is-a-rec...
Original comment:
>and they can't come after the rest of your assets, only the securing property
That's not true. The come for the property FIRST. Then once they've sold that and it fails to cover the debt (plus interest and fees, plus the cost of sale) they come for whatever else you have.