When a single ungoverned AI tool gave attackers a path from a Vercel employee’s device into Vercel’s internal systems, and a poisoned VS Code extension let attackers pull roughly 3,800 repositories out of GitHub, the common thread wasn’t a coding flaw — it was an unmanaged non-human identity. With AI agents now driving machine identities to roughly 109 per human inside the average enterprise (CyberArk, 2026), most governance frameworks still treat identity as a human-only problem.