Troy Hunt builds Xero auto-suspension after customer drags HIBP invoices 80+ days late

Hunt spent the week dealing with an unnamed enterprise customer whose invoices were running more than six months overdue, averaging 80-day payment cycles against contractual 30-day terms. The friction escalated when the customer’s CEO objected to Hunt’s tone rather than addressing the underlying non-payment, prompting Hunt to automate the problem out of his life entirely.

Working with Copilot over the weekend, he wired up a Xero integration that will automatically suspend Have I Been Pwned enterprise service for accounts with overdue invoices. The post functions partly as a public notice: future customers who find their HIBP access cut off weeks after a missed payment should understand the suspension is policy, not personal.

The broader signal here is operational — a one-person-scale security service treating accounts receivable as a reliability problem solvable with code, rather than continuing to absorb the soft cost of chasing payment from enterprise buyers who exploit the imbalance.