Protect Your Personal Home Computer

For Everyone

You can protect your personal home computer from a cyberattack by turning on a firewall for free.  

For Microsoft users, you should turn on the Microsoft Defender Firewall. Do this even if you already have another firewall on, because it helps protect you from unauthorized access.

To turn on Microsoft Defender Firewall

  • Click here to open Windows security settings. Disregard the security window pop-up by clicking Yes.

    • Select a network profile.

    • Under Microsoft Defender Firewall, switch the setting to On.

  • For more details, click here.

For Mac users, a firewall can also protect your computer when you’re connected to the internet or a network. For steps to turn on firewall protection on your Mac, click here.

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