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Secure Mac OSX Yosemite

Install System Updates

  1. Open the App Store and go to Updates;
  2. Install latest system updates.

Encypt your HDD

  1. Go to System Settings > Security & Privacy > FileVault;
  2. Turn on FileVault; make sure you don't share your encryption key with Apple (beats the purpose of encryption).

Disable Spotlight Suggestions

  1. Go to System Preferences > Spotlight > Search Results;
  2. Disable Spotlight Suggestions and Bing Web Searches.

You might want to consider disabling more Spotlight Search categories. A good suggestion is to keep only Applications and System Settings.

Disable Safari Spotlight Suggestions

You might think that by disabling Spotlight Suggestions you are done - you are wrong.

  1. Go to Safari > Preferences > Search;
  2. Uncheck the Include Spotlight Suggestions option.

Enable Google DNS

  1. Go to System Preferences > Network;
  2. Select Wi-Fi from the left-hand pane and click the Advanced button;
  3. Open the DNS tab;
  4. Click the + button under the DNS Servers and type 8.8.8.8;
  5. Click and + button (again) and type 8.8.4.4;
  6. Hit OK.

You might want to repeat the process for your Ethernet interface.

Enable Find My Mac (for corporate laptops)

If you are using a laptop that belongs to your company you might want to enable Find My Mac in order to track it, remotely lock it, and send messages to your Mac’s screen.

  1. Go to System Preferences > iCloud;
  2. Log in to iCloud;
  3. Select the Find My Mac checkbox.

If the worst happens, you can track your Mac via iCloud.com or the Find My iPhone app on your iPad/iPhone.