A VPN, or virtual private network, is a great way to keep anyone from eavesdropping on data that passes into and out of your Mac on public networks. You should leave Block all incoming connections unchecked, too, unless all you’re doing is surfing the Web.Įnabling your Mac’s firewall and Stealth Mode are only part of the bigger picture in protecting your computer and data, especially on public networks. Leave those checked unless you know what you’re doing and plan to manage app network access manually. Those settings let the apps you already have communicate through the firewall without you having to take any extra steps. It’s below the button for turning the firewall on and off.Ĭlick the Firewall Options button to find the Stealth Mode settingĪutomatically allow built-in software to receive incoming connections and Automatically allow downloaded signed software to receive incoming connections should already be checked. Go to Security & Privacy to enable your Mac’s built-in firewall You may have to click the padlock icon and authenticate with your Mac’s password to change the setting.
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