And nearly every day I hear another horror story about someone who left their whole computer open for the world to see. So let's talk about good, better and best. First, let's talk turkey. It's the last line of defense before you open up your whole PC to the world. And that is what you are doing if you have a high-speed Internet connection and you're not running a firewall.
Most people use software firewall programs.
The company also sells a more-featured product for business on the same site. If you are looking for the best protection, or if you have several computers connected to the Internet in your home or office, consider a hardware firewall. That's little more than you would pay for a decent router anyway. Installation was a snap. Just plug it in and hook in the remote computers using Cat-5 Ethernet cables.