Amazon Lost 6.3 Million Orders to Vibe-Coded Deployment — Implements 90-Day Senior-Engineer Sign-Off Mandate

Security Boulevard·medium signal

After mandating 80% weekly usage of AI coding assistant Kiro, an AI-assisted deployment knocked out Amazon's checkout, login, and pricing for 6 hours, costing an estimated 6.3 million orders. Internal data shows 1.7x more major issues and up to 2.7x more XSS vulnerabilities from AI-generated code. Amazon responded with a 90-day mandate requiring senior engineer sign-off on all AI-assisted production deployments — the first major enterprise rollback of AI coding mandates.