How Does A Firewall Work?

You may have heard the term firewall before butWhen computer firewall protection is enabled,
have you ever wondered how does a firewall workeverything that goes in and out of your computer is
and why do I need one? A computer firewall protectsmonitored. With the amount of malicious programs on
your computer by putting up a barrier to keep anyonethe Internet today it's also a way to prevent spyware
from accessing your files when you are surfing theand adware from getting into your computer.
Internet.Many people think that the anti-virus software that
Once a hacker get access to your files maliciouscame with their computer protects them from hackers.
codes spread through your computer retrieving yourWhile it's important to keep anti-virus software
personal information that the hacker can use to stealupdated for viruses it does nothing to secure your
your identity or charge items with your credit cardcomputer against direct hacker attacks.
numbers. So how does a firewall work?Whether you have a dial-up, cable, broadband or DSL
A firewall not only stops this from happening but keepsconnection, every minute that your computer is
the malicious file out of your computer so it can'tconnected to the Internet, it is at risk. Hackers are
spread to your other files. That's why it's called alooking to do you harm and even steal your identity.
firewall because its job is similar to a firewall thatIdentity theft is one of the fastest growing crimes
keeps a fire from spreading from one area to thetoday.
next.One of the most effective ways to guard your
If a hacker tries to invade your computer files to getpersonal information and keep these criminals away
your passwords and credit card numbers you've usedfrom your sensitive passwords and credit card
for online purchases he simply can't get access.numbers is the use of computer firewall protection.
Computer firewall software will allow good data in butYou'll hear the term firewall used a lot in the near
blocks all bad data from entering your computer.future because these problems are growing at an
Good data is when you are surfing the Internet, visitingalarming rate on the Internet. You'll probably also hear
web sites, downloading photos or data files. But badother people ask, how does a firewall work and why
data, like hacker programs, or anything that spies ondo I need one? But now you'll know the answer.
your Internet habits without your knowledge is notCopyright © 2005 Spyware All Rights Reserved.
allowed.