Identity Solves Attribution, Not Scope Agent identity is necessary because a security team needs to know which software actor is operating. NIST's 2026 AI Agent Standards Initiative explicitly links secure autonomous action with ongoing work on agent identity and authorization. [1] The key distinction is operational: identifying the agent answers which actor is present; authorizing the action answers what that actor is permitted to do now. A Single Agent Can Need Different Authority in Different Moments The same agent may read a customer record, draft a response, update a case, and request a refund in one workflow. Those steps should not automatically inherit the same aut…
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