Working with iOS devices? Take a few moments to review the following helpful security guides and hardening recommendations.
Not all versions of OS X are listed by Apple. Choose the version that is closest to the one you're running until Apple revises their documentation.
Some instructions in this Apple guide are complex, and deviation could cause serious adverse effects on the computer and its security.
These instructions should only be used by experienced Mac OS X users, and should be followed by thorough testing.