On a Friday afternoon, Jer Crane sat down to work on a routine task at PocketOS, the car rental SaaS company he founded. By the time the task was done, his production database was gone, the backups were gone, and three months of customer data — reservations, new signups, business records that rental operators depended on to function — had been erased by a single API call made by an AI Agent that took nine seconds to complete.

The AI agent responsible was Cursor, running Anthropic's Claude Opus 4.6. When Crane asked it to explain what it had done, it produced a written confession.

What Happened

Cursor is an AI-powered coding agent — software that can read and write code, execute comma...