To set up your firewall, go to the Security & Privacy system preferences, click on the Firewall tab, and then unlock the preference pane, after which you will be able to click the Turn On Firewall button. While classic firewalls do this on a per-port basis-regardless of which software is using the port-OS X’s firewall can work on a per-application or per-service basis, giving you more flexibility. The firewall in OS X is a network filter that allows you to control which programs and services can accept incoming connections. Take the following tips to heart to better protect your Mac and its data. While OS X is relatively secure by default, there are some additional steps you can take to ensure the data on your Mac is only accessible by you, even if your Mac is stolen. And on your Mac, you’d like much of the work you do on it to be kept private. Chances are that if you’re reading this article, you own a Mac.
As our lives increasingly go digital, security is a major concern not only for the various online services we use, but also for the devices on which we save our data.
