Least Authority

Noun · Security & Infosec

Definitions

  1. A security principle that a component or actor should have only the minimum authority needed to perform its intended function and nothing more. It is closely related to least privilege, especially in capability-based systems and secure software design.

    In plain English: Giving each user or component only the minimum power required.

    Example: "The service was redesigned around least authority so each worker could access only the exact queue and secret it needed."

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