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Chapter 13. Security Basics > Physical Security

13.4. Physical Security

Even with the described security measures in place, they can be of little value if anyone can sit at your unattended Mac and begin working under your logged-in account. Mac OS X includes several features to prevent such unwanted access.

13.4.1. Log Out on Idle

The Security Preferences pane contains a checkbox that enables automatic logout after a specified period of inactivity, from 5 minutes to 16 hours. The behavior of this logout is identical to that of a manual logout, prompting you to save any unsaved documents (the logout stops if you don't answer the prompt).


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