This is why we'll be using ACs to pay for things. Load up an autonomous corporation with $5, make its job paying for API calls. If something goes South, it's last job is to pay an alert mechanism that triggers a human response.
These models turn existing models on their heads, so be aware of other pitfalls. Productive paranoia is good, but only practice it after you innovate first.
The threat of chargebacks disciplines the market to provide reasonable customer service.