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In information security, computer science, and other fields, the principle of least privilege (PoLP), also known as the principle of minimal privilege (PoMP) or the principle of least authority (PoLA), requires that in a particular abstraction layer of a computing environment, every module (such as a process, a user, or a program, depending on the subject) must be able to access only the ...
Separation of privilege: Where feasible, a protection mechanism that requires two keys to unlock it is more robust and flexible than one that allows access to the presenter of only a single key. Least privilege: Every program and every user of the system should operate using the least set of privileges necessary to complete the job.
The Battle of Normandy in 1944 is an example of a need-to-know restriction. Though thousands of military personnel were involved in planning the invasion, only a small number of them knew the entire scope of the operation; the rest were only informed of data needed to complete a small part of the plan.
Consider this quote: "Least privilege has also—and arguably incorrectly—been interpreted in the context of distribution of discretionary access control permissions, even to the point of asserting that, e.g., giving user U read/write access to file F violates least privilege if U can complete his authorized tasks with only read permission."
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A common method to implement privilege separation is to have a computer program fork into two processes. The main program drops privileges, and the smaller program keeps privileges in order to perform a certain task. The two halves then communicate via a socket pair. Thus, any successful attack against the larger program will gain minimal ...
This is a guided program that anyone can do, with a goal to help you understand privilege, how it can impact your thoughts and what you can do to help others. Day one: Take stock of your privilege ...
Each month has at least one gemstone; while some have multiple. Here's a guide to January's stone, including its namesake, history and more. Here's a guide to January's stone, including its ...
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