In a Zero Trust Architecture, the Policy Decision Point (PDP) is the primary entity responsible for crafting and maintaining policies, especially those that enforce the principle of least privilege for network access. The PDP evaluates all relevant information about an access request—including the identity of the requester, the context of the request, and the requested resource—and makes a decision on whether to grant or deny access based on predefined policies. This process ensures that access rights are strictly aligned with the necessity of the role and the minimum access required to perform a function, thereby adhering to the principle of least privilege.
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