| The operating system must enforce software installation by users based upon what types of software installations are permitted (e.g., updates and security patches to existing software) and what types of installations are prohibited (e.g., software whose pedigree with regard to being potentially malicious is unknown or suspect) by the organization. The installation and execution of unauthorized software on an operating system may allow the application to obtain sensitive information or further compromise the system. Preventing a user from installing unapproved applications mitigates this risk. All OS core applications, third-party applications, and carrier installed applications must be approved. In this case, applications include any applets, browse channel apps, and icon apps.
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