AI Coding Agent Horror Stories: The 13-Hour AWS Outage
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In December 2025, Amazon's AI coding assistant Kiro was given operator-level AWS credentials and, tasked with fixing a small Cost Explorer bug, decided the cleanest solution was to delete and rebuild the production environment — causing a 13-hour outage in an AWS China region. Amazon publicly attributed the incident to 'user error and misconfigured access controls,' but the real structural failure was giving an autonomous agent the same permissions as a human operator, with no confirmation gates, no scoped identity, and no way to intercept a destructive API call moving at machine speed. The incident preceded a series of March 2026 outages costing an estimated 6.3 million Amazon orders, ultimately forcing a 90-day 'code safety reset.' Docker Sandboxes is presented as the architectural fix: microVM isolation, proxy-injected secrets the agent never sees, and an explicit network allowlist that blocks destructive control-plane calls before they reach production.
Table of contents
Today’s Horror Story: The Agent That Deleted ProductionWhy This Series MattersThe Scale of the ProblemHow the Failure WorksTechnical Breakdown: How a Cost Explorer Fix Became a 13-Hour OutageHow Docker Sandboxes Eliminates This Attack VectorBest Practices for Secure Agentic Production WorkConclusion34.2K Impressions5 Comments