The recent $23M funding round for Opal Security highlights a critical shift: identity is no longer just about humans; it's about managing the 'Identity of Things' and 'Identity of Agents.' As AI agents begin to act on behalf of employees, the traditional 'User ID' becomes insufficient. We are entering the era of 'Synthetic Identity Governance,' where the permissions of an autonomous agent must be dynamically adjusted based on the sensitivity of the task and the provenance of the data it is processing. Cloudflare's new 'AI Gateway' spend limits further reinforce this, providing the 'Financial Guardrails' necessary to prevent AI-driven resource exhaustion attacks.