Some users discovered that new kernel for Intel that Apple included in the DVD of the Kit of the Developer it uses TCPA/TPM DRM.

This chip can avoid the operation of certain functionalities of the operating system without authorization.

Technology DRM only allows the execution of digital content after verifying that the user is authorized to reproduce those contents and in addition that the hardware on which it is tried the reproduction is the correct one. It is the possibility of allowing the rent of digital content, that would expire last a time, but its part is the impossibility to reproduce backups of legitimately acquired contents.

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