Wisconsin Statutes Vehicles (Ch. 340 to 351) § 344.37. Money or securities as proof

(1) Proof of financial responsibility for the future may be evidenced by a deposit with the secretary by the person of $60,000 in cash, or in securities such as may legally be purchased by savings banks or for trust funds of a market value of $60,000. The secretary shall not accept any such deposit unless accompanied by evidence that there are no unsatisfied judgments of any character against the depositor in the county where the depositor resides.

(2) Deposits made under this section shall be held by the secretary to satisfy, in accordance with this chapter, any execution on a judgment issued against the person making the deposit, for damages resulting from the ownership, maintenance, use or operation of a motor vehicle after such deposit was made, including damages for care and for loss of services because of bodily injury to or death of any person and damages because of injury to or destruction of property and the consequent loss of use thereof. Money or securities so deposited are not subject to attachment or execution unless such attachment or execution arises out of a suit for damages as set forth in this section.