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Apple Security Update is recommended for all users and improves the security of OS X. For detailed information about the security content of this update, please visit:

The download link above is for macOS 10.12.6 Sierra; see Related Links for additional security updates.

What's New

Version 2018-001:

Note: Recent security updates for macOS 10.13.x are included in the updates for that version of the operating system, found here.
Note: Security Update 2018-001 is recommended for all users and improves the security of OS X.


  • macOS 10.12.6
  • Download for macOS 10.13 and 10.13.1 in Related Links
  • See Related Links for other system versions

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Apple Security Update User Discussion

3.5 21


Current Version (2018-001.x)


Downloads 16,348
Version Downloads 342
License Updater
Date 24 Jan 2018
Platform Intel 64 / OS X
Price Free
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