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Free Personal Computer Firewall Protection

Window's XP SP2 comes with built in firewall you should have this turned on unless you replace it with another firewall. Software firewalls block incoming and outgoing threats, sometimes this is difficult for the firewall to know what is legitimate and what is a threat, when this happens a pop up usually appears and alerts the user, and asks for confirmation. Software firewalls are good because if a spyware or virus did get on your system the firewall can block it from communicating to the outside world. Never install more than one personal firewall on a computer.

Hardware firewall is a physical box that sits between a modem and a computer. Any wired router or wireless router will offer firewall protection. The router hides your network from the internet. One good advantage with the hardware firewall is that it can't be turned off, a clever hacker may be able to disable a software firewall. A broadband router is more than adequate protection for most users, and is much less likely to cause problems.

Here are some free personal firewalls

Sunbelt Kerio Personal Firewall - Kerio Personal Firewall helps users control how their computers exchange data with other computers on the Internet or local network.

Zone Alarm Personal Firewall - ZoneAlarm is an easy-to-use firewall that blocks hackers and other unknown threats.

Comodo Free Firewall - Comodo has put firewall through all kinds of sophisticated tests to ensure its firewall powerful enough to ward off these attacks with default settings.

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