How to secure your Apple computer from unauthorized network access.

OSX by default has open network ports and user access that can allow unauthorized access to your data. Following these step can "lockdown" your Apple computer.

  • Open the System Preferences.
    • To get to System Preferences, click on the Apple in the upper left corner of the screen. Click on System Preferences from the list.
  • With the System Preferences open, find Security & Privacy and click on it.
  • In the Security & Privacy preferences panel there are four sub-tabs. We are going to cover each of them in turn.
  • Click Next to continue or click on the Online Service Request icon to create an Online Trouble Ticket.
  • In the General Tab these are the changes you will be making:
    • Check the check box for Require Password (then select immediately from the dropdown list) after sleep or screen saver begins
    • Check the box for disable automatic login
  • Here is an image of how your settings should look:
  • Click Next to continue or click Previous to go back.
  • The FileVault Tab
    • Click on the FileVault tab.
    • Click on Turn on FileVault ...
    • If other users have accounts on your Mac, you might see a message that each user must type in their password before they can unlock the disk. For each user, click the Enable User button and enter in the user's password. User accounts that you add after turning on FileVault are automatically enabled.
    • School of Medicine - Office of Information Systems Recommends that you do not use the iCloud account. Click Create a Recovery Key and do not use my iCloud Account. Click Continue
    • A recovery key will be provided. Write down this recovery key! Also please provide a copy of the recovery key to your IT Department. Click Continue.
    • Click Restart.

  • Click Next to continue or click Previous to go back.
  • The Firewall Tab
    • By default the Firewall is turned off. Click on the Start button to turn on the Firewall.
    • Now click on the Advanced button so you can fine tune the Firewall
  • Click Next to continue or click Previous to go back.
  • Screen Saver
    • In System Preferences, locate and click on Desktop & Screen Saver.
    • Click on the Screen Saver tab.
    • Click on Start After: 20 Minutes.
    • Click Next to continue or click Previous to go back.
  • Sharing
    • In System Preferences,locate and click onSharing.
    • Uncheck all the boxes in the Sharing Menu.
    • Click SOM Help Webpage to return to Help.Med.Unc.Edu or click Previous to go back.