AI-Written Code Priced $2,200 of Crypto at $1.12 and Drained $1.8 Million

A Moonwell DeFi price-oracle update co-authored by Claude Opus 4.6 valued Coinbase Wrapped ETH at $1.12 instead of about $2,200. Automated liquidators seized honest borrowers' collateral within minutes, leaving $1.78 million in bad debt. The auditor noted a senior developer could have made the same error.