What save really a sandbox application?

I'm trying to understand sandboxing OS X works.  In OS X Support Essentials 10.10 I read this:

The contents of the data folder mimics especially home folder of the user, but with an essential distinction: it contains only the elements that the application is allowed to access. In the data folder you will find only the function-specific elements, or elements of the application the user has explicitly opened in the application.

Created and managed by the application in the sandbox are original parts only in the data of the container folder.

Elements from other applications or opening of the user action are represented as symbolic links that point to the original outside the container element.


I did some tests: I created a file with Textedit (menu file > open > new) to see if it is presented in the sandbox for editing text, it didn't.

What exactly does sandboxing?

https://developer.Apple.com/library/Mac/documentation/security/conceptual/AppSan dboxDesignGuide/AboutAppSandbox/AboutAppSandbox.html

Tags: Mac OS & System Software

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