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The Apple EFI Security Update improves security of Mac OS X 10.9.5 systems by addressing an issue where EFI could potentially be overwritten without authorization. For more information on the security content of this update see

What's New

Version 2015-002:

Note: Requires OS X 10.9.5.

  • Prevents unauthorized overwrite of system EFI


  • OS X 10.9.5

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Apple EFI Security Update User Discussion


Current Version (2015-002.x)


Downloads 909
Version Downloads 345
License Updater
Date 22 Oct 2015
Platform Intel 64 / OS X / Intel 32
Price Free
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