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  2. Principle of least privilege - Wikipedia

    en.wikipedia.org/wiki/Principle_of_least_privilege

    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 ...

  3. Privilege separation - Wikipedia

    en.wikipedia.org/wiki/Privilege_separation

    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 ...

  4. Rule of least power - Wikipedia

    en.wikipedia.org/wiki/Rule_of_least_power

    In programming, the rule of least power is a design principle that "suggests choosing the least powerful [computer] language suitable for a given purpose". [1] Stated alternatively, given a choice among computer languages, classes of which range from descriptive (or declarative) to procedural, the less procedural, more descriptive the language one chooses, the more one can do with the data ...

  5. Protection ring - Wikipedia

    en.wikipedia.org/wiki/Protection_ring

    A privilege level in the x86 instruction set controls the access of the program currently running on the processor to resources such as memory regions, I/O ports, and special instructions. There are 4 privilege levels ranging from 0 which is the most privileged, to 3 which is least privileged.

  6. Privilege (computing) - Wikipedia

    en.wikipedia.org/wiki/Privilege_(computing)

    Tasks are tagged with a privilege level. Resources (segments, pages, ports, etc.) and the privileged instructions are tagged with a demanded privilege level. When a task tries to use a resource, or execute a privileged instruction, the processor determines whether it has the permission (if not, a "protection fault" interrupt is generated).

  7. Principle of least astonishment - Wikipedia

    en.wikipedia.org/wiki/Principle_of_least...

    A textbook formulation is: "People are part of the system. The design should match the user's experience, expectations, and mental models." [13]The principle aims to leverage the existing knowledge of users to minimize the learning curve, for instance by designing interfaces that borrow heavily from "functionally similar or analogous programs with which your users are likely to be familiar". [2]

  8. Privilege escalation - Wikipedia

    en.wikipedia.org/wiki/Privilege_escalation

    Privilege escalation is the act of exploiting a bug, a design flaw, or a configuration oversight in an operating system or software application to gain elevated access to resources that are normally protected from an application or user.

  9. Privilege bracketing - Wikipedia

    en.wikipedia.org/wiki/Privilege_bracketing

    It is an example of the use of principle of least privilege in defensive programming. It should be distinguished from privilege separation , which is a much more effective security measure that separates the privileged parts of the system from its unprivileged parts by putting them into different processes, as opposed to switching between them ...