Need-To-Know
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National Definitions
United States
NIST
Need-to-know (NTK) is a method of isolating information resources based on a user's need to have access to that resource in order to perform their job but no more. [1]
The terms ‘need-to know” and “least privilege” express the same idea. Need-to-know is generally applied to people, while least privilege is generally applied to processes.