Frequently Asked Computer
Security Questions
Working on the
Internet provides Internet marketers with the opportunity to make a living
in the comfort of their own home. However, as your business is completely
reliant upon your computer, you must take the necessary steps to ensure your
computer is safe.
Over the years, I have received many questions in regard to computer security,
viruses and firewalls. Below, are some of the most frequently asked
questions:
Question: I'm new to the Internet and have
been hearing a lot about viruses. I'm not exactly sure what they are. Can
you help?
Answer: A virus is a small piece of software
that attaches itself to 'real' software programs (executable code). Each
time you launch the real program, the virus is also launched. The virus may
then spread and attach itself to other programs and wreak havoc on your
system.
The most widespread virus is an email virus. An email virus spreads through
email attachments. It usually spreads by mailing itself to everyone within
the email program's address book. It tricks the email recipient into believing
the message was sent from someone they know.
Although this type of virus rapidly spreads, you can't get it simply by reading
a plain text email. However, you can execute the virus by clicking on an
encoded message that contains embedded executable code such as JavaScript
within an HTML email message, or an executable file attachment.
Another type of program that is often thought of as a virus is a 'Trojan
horse' program. However, it is not a virus. It is simply a computer program
that acts like it's something it's not. For example, you may download a program
that you think is a computer game. However, when you run the program, it
may delete files on your hard drive. Trojan horses cannot automatically replicate
themselves.
Another widespread program is known as a worm. A worm is actually a small
piece of software that travels through vulnerable computer networks with
security holes. The worm scans the network in search of other computers with
security holes. It copies itself to each system it finds.
Although viruses
can infect any type of executable code such as EXE files or DOC files, most
media files such as GIF, JPG, BMP, MP3, WAV, AVI, MOV and TXT files are generally
safe.
Although viruses can wreak havoc, computer virus hoaxes can also be damaging.
Virus hoaxes may cause Internet users to begin to ignore all virus warnings.
This can be harmful, as they are then left vulnerable to 'real' virus
warnings.
In addition, many virus hoaxes also include a 'fix' that instructs the user
to delete a certain file from their system. However, the file the hoax says
is a virus is actually an important file needed by your computer.
Never follow the advice within an email 'virus alert' instructing you to
remove a virus from your system without first verifying its validity.
Visit Symantec to search their virus encyclopedia:
http://securityresponse.symantec.com/avcenter/vinfodb.html/
You can also search McAfee's virus database here:
http://www.mcafee.com/anti-virus/default.asp
You can protect your computer by taking a few precautionary steps:
1) Purchase a quality virus protection software and keep it updated.
McAfee
http://www.mcafee.com
Norton
http://www.symantec.com
Please note, the above programs (especially Norton) have been known to cause
problems with some operating systems. Although there isn't any particular
pattern, caution should be exercised. I use McAfee online virus scan and
haven't had any problems.
2) If you're using Microsoft programs, make sure that the "Macro Virus
Protection" is enabled. Never run a macro within a document unless you know
exactly what it does.
3) Never open an email attachment unless you're absolutely sure where it
came from and what it is.
4) Avoid downloading software programs from sources you're not familiar with.
If you do download a program, make sure you scan the file with your anti-virus
software prior to installing.
Question: I've been hearing a lot about
firewalls, but I'm not sure what it is or if I need it. Can you help?
Answer: A firewall is basically a software
program that allows you full access to the Internet and/or your network,
while restricting access to your computer system from outside intrusions.
Internet users are extremely vulnerable to hackers, especially if you have
cable or ADSL access to the Internet. You definitely need to protect your
computer system. I recommend using a great program called Zone Alarm Pro
http://www.zonealarm.com
.
Once you install a firewall, you'll be amazed at how many attempts to access
your computer are blocked by your firewall.
Hackers can directly access your computer system by installing programs such
as a key logger that can read every keystroke you make. This information
is recorded and sent back to the hacker. Private information such as passwords
and credit card numbers can easily be stolen.
A key logger is a small software program that quietly runs in the background.
As these programs quite often run in DOS, you will most-likely never realize
it's running. However, you can see if a key logger is running by pressing
'control' - 'alt' - 'delete' on your keyboard. This will launch a window
that contains a list of all the programs currently running on your system.
Review the list and watch for programs you don't recognize.
As there are many small programs such as adware (pop-windows) and spyware
cookies that can bypass your anti-virus and firewall software, I recommend
using a program called Pest Patrol
http://www.pestpatrol.com/
. This program will detect and remove non-viral malicious software.
Although you can purchase Pest Patrol at the above site, you can receive
a discount if you purchase it with Zone Alarm Pro
http://www.zonealarm.com
. I can't guarantee how long this special offer will be available, so if
you want it, now is a good time to get it.
If you really want to keep your computer safe, I recommend the following:
1) Purchase a good virus program and keep it updated
2) Purchase a good firewall program and keep it updated
3) Purchase a program like Pest Patrol and keep it updated
Taking the time to protect your computer is one of the best business decisions
you'll ever make. If you don't protect it now, you'll definitely regret it
later. It's just a matter of time.
Copyright © Shelley
Lowery
About the Author:
Shelley Lowery is the author of the acclaimed web design course, Web Design
Mastery.
http://www.webdesignmastery.com
And, Ebook Starter - Give Your Ebooks the look and feel of a REAL book.
http://www.ebookstarter.com
Visit Web-Source.net to sign up for a complimentary subscription to Etips
and receive a copy of the acclaimed ebook, "Killer Internet Marketing
Strategies."
http://www.web-source.net
You have permission to publish this article electronically, in print,
in your ebook or on your web site, free of charge, as long as the author
bylines are included.
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