Use the built-in firewall to protect your system

OS X now includes a built-in Firewall. The Firewall will help keep your system safe from hackers, especially on unknown networks. This video tutorial shows you how to enable the OS X application firewall and configure it for proper use.

About Joe Cotellese

Joe is the founder of Learning OS X. He's often spending way too much time playing with new Mac software in order to improve his ability at "Getting Things Done."


  1. Its nice to find a Mac-related blog with a security section (I found you via DP).

    Too many people think that the Mac and OSX/Snow Leopard are inherently totally secure but that, alas, is simply not true.

  2. Wow, great effort! OS X is probably the most secure OS out there (after Linux). And I think that’s because inbuilt features such as firewall. Windows came out with it only recently. OS X had it all along.

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