HOW DOES A FIREWALL WORK? BY GARY GRESHAM
Gary Gresham demystify how the firewall works.
You may have heard the term firewall before but have you ever wondered how does a firewall work and why do I need one? A computer firewall protects your computer by putting up a barrier to keep anyone from accessing your files when you are surfing the Internet.
Once a hacker get access to your files malicious codes spread through your computer retrieving your personal information that the hacker can use to steal your identity or charge items with your credit card numbers. So how does a firewall work?
A firewall not only stops this from happening but keeps the malicious file out of your computer so it can't spread to your other files. That's why it's called a firewall because its job is similar to a firewall that keeps a fire from spreading from one area to the next.
If a hacker tries to invade your computer files to get your passwords and credit card numbers you've used for online purchases he simply can't get access. Computer firewall software will allow good data in but blocks all bad data from entering your computer.
Good data is when you are surfing the Internet, visiting web sites, downloading photos or data files. But bad data, like hacker programs, or anything that spies on your Internet habits without your knowledge is not allowed.
When computer firewall protection is enabled, everything that goes in and out of your computer is monitored. With the amount of malicious programs on the Internet today it's also a way to prevent spyware and adware from getting into your computer.
Many people think that the anti-virus software that came with their computer protects them from hackers. While it's important to keep anti-virus software updated for viruses it does nothing to secure your computer against direct hacker attacks.
Whether you have a dial-up, cable, broadband or DSL connection, every minute that your computer is connected to the Internet, it is at risk. Hackers are looking to do you harm and even steal your identity. Identity theft is one of the fastest growing crimes today.
One of the most effective ways to guard your personal information and keep these criminals away from your sensitive passwords and credit card numbers is the use of computer firewall protection.
You'll hear the term firewall used a lot in the near future because these problems are growing at an alarming rate on the Internet. You'll probably also hear other people ask, how does a firewall work and why do I need one? But now you'll know the answer.
About the Author
This article is provided by http://www.spyware-information.com where you will find free spyware cleaners, downloads, removal software, computer firewalls and valuable tips. For regularly updated articles about adware, spyware and protection from identity theft go to http://spyware-information.com/articles_1.html
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SPYWARE DEFINITION LIST BY GREGG GRESHAM
The list of adware and spyware definitions runs very long. But these definitions listed below are some of the most common ones. This is a glossary of spyware facts and terms so you'll know what these malicious programs can do to your computer.
Adware
Adware components install along with a shareware or freeware download. The adware developer creates revenue advertisements usually through pop up windows. Most adware components are actually installed with consent from the user. The reason this happens is because most people never bother to read the end-user license agreement that comes with software.
Spyware
Spyware is often installed bundled with freeware or shareware, much like adware. Spyware gathers and transmits sensitive and personal information about the user's behavior to an unknown party. The data is collected without the user even knowing it happened. By the time you discover it, the damage has been done and the hacker is long gone.
Browser Hijackers
Browser hijackers are innocently installed as helpful browser toolbars. They can alter your browser settings and can change your default home page to point to another site.
Trojan Horse Programs
Trojan horse programs sneak into your system and run without you realizing it like spyware. Programmers use these programs for any number of malicious uses and none of them you would approve of. But one good thing is Trojan horse programs do not make copies of themselves.
Tracking cookies
Tracking cookies are files with small amounts of data like passwords and settings. Tracking cookies can provide a benefit to you especially if you revisit web sites. But in the wrong hands, cookies are used to track your Internet behavior. This is done without your knowledge or consent and provides marketers with private information about you.
Keyloggers
Keyloggers are programs that run silently in the background, recording all your keystrokes. Once the keystrokes are logged, they can be retrieved later by the hacker using a remote keyloggers program. The hacker can get your passwords, credit card numbers and any other personal information on your computer.
Malware
The definition of malware is any malicious software or program that will harm your computer. Computer viruses, worms and Trojans are all considered malware, but several other types of programs may also be included under the term.
Password Cracker
A password cracker is simply a program used to decrypt a password or password file. Security administrators use password crackers for legitimate use by using them to improve system security. But you can only imagine the dangers when a hacker gets a program like this.
There are many other spyware definitions including scumware, annoyanceware, parasites and the list continues to grow daily.
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