The $50 Hack: When a Hacker Rented a Tireless Employee for $50 — and a Sandbox Checklist for People Who Build Agents

A hacker breached 100+ companies at about $50 each, using Claude Code, a cheap DeepSeek model and the open-source Cairn harness. What happened — as reported by NorForge (via aiweekly.co) and TechCrunch — plus a 5-point sandbox checklist for anyone shipping AI agents.