Inside Amazon S March 2026 Ai Code Outages What Broke Why It Failed And How To Build Safer Genai Engineering

Core checkout, account, and pricing flows were affected. ~21,000 users reported issues on Downdetector at peak, confirming a large, customer-facing outage. Internally, Amazon logged four “Se 1” incidents in a single week - its highest severity level. Internal memos tied these failures to “genAI-assisted changes” within a months-long trend of incidents across e‑commerce and AWS. Generative AI had been pushed into engineering workflows faster than governance and culture adapted.