Firewall Facts

10/25/2022 3:41 PM | Technical Framework (Administrator)

While firewall science is well beyond the scope of this book, it's worth knowing basically what they are and why they exist.

There are generally two types of firewalls: hardware and software. Both work as a barrier against hacks.

Hardware firewalls earn their name because they are part of a hardware appliance like your home router. Software firewalls come standard on PCs and Macs and are turned on by default. It's usually not necessary to change the default settings of your firewall(s), and doing so requires the services of a trained professional.

Why do you need both? Your hardware firewall works much like a guard at the outer gate, blocking threats before they enter your home network. Your software firewall is...
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