IBM's 2025 report: shadow AI breaches cost $4.63M average — $670K more than standard incidents, with 20% of breaches involving shadow AI. The ROI math for governance. (IBM's 2026 edition has since raised both figures.)
The enterprise ChatGPT invoice is not the number. Individual subscriptions, API spend inside engineering budgets and free tiers that quietly upgraded never reach it — see costs across 297 providers and 9,000+ models in one dashboard.