Learning from the Vercel breach: Shadow AI & OAuth sprawl

This briefing explains how shadow AI and unmanaged OAuth integrations expand enterprise attack surface, using the Context.ai–Vercel incident and other OAuth-driven supply-chain attacks as examples; it details techniques (infostealer delivery, OAuth token pivoting, device-code phishing), the broad impact on many organizations, and recommends immediate actions like default-deny OAuth consent, routine audits, and cross-SaaS visibility.