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Use encapsulation

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This is a principle or a set of principles. To view all principles, please see the Principle Category page.

Last revision (mm/dd/yy): 04/7/2009


Draw strong boundaries among application elements, including modules, functions and data, to limit the impact of potential attacks.


  • Design
    • Separate internal administrator's functions from external users' functions
    • Differentiate between validated data and unvalidated data, between one user's data and another's, or between data users are allowed to see and data that they are not.
    • In a web browser ensure that your mobile code cannot be abused by other mobile code.
  • Implementation
    • Hide internal details of a class, including data and methods, using private access modifier.

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