December 2003 Issue #1
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Protecting
your computer against
VIRUSES
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With the advent of
broadband Internet and the push of the spammers, Virus protection
and a
solid firewall
are a necessity. Virus protection doesn't have to cost you anything
either, for home use I recommend using AVG
Anti-Virus available
for free for personal use. Other great virus scanners are Symantec
Antivirus and McAfee
AntiVirus. But remember, your antivirus product is only good
as long as you keep it updated, all of the above products have
an update feature to keep it current with new viruses.
EMail is probably the most common way to receive
a virus. When some viruses infect your computer they get into your address book
and send to everybody you know. The best way to combat this is to not open suspicious
attachments. To recognize an attachment to be safe or unsafe, here are some guidelines
:
Don't open filenames that end with any of these
extensions : .exe, .com, or .scr. Be aware that they may try
to fool you by using multiple extensions (ie. filename.gif.exe).
Always go by the last three letters to recognize the filetype.
Word
or Word Perfect documents can contain macro viruses, be extremely
sure you know who sent the item prior to opening.
Microsoft
does not send patches via email, delete these messages right
away. Click
here to
view an example of an email containing a virus that I received
the
other day.
Manually scan every attachment
you receive that you are even a little bit unsure of.
Check who the email
is to and who it is from. If the email is not directly addressed to you, it
is probably spam. Keep in mind that spammers can easily change the from address
to be anything they want
Related WebSites and Articles :
Free Online Virus Scan - Housecall.Antivirus.com
Computer Associates
- Virus Encyclopedia
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SPYWARE
Is your computer infected?
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Spyware, also known as AdWare, Malware, or Parasites,
are more common than viruses these days. They are responsible
for pop-up ads, slow computer performance, and computer crashing.
These programs can infect your computer from a variety of sources
and can be very troublesome to remove. They monitor your
internet surfing habits and pop-up advertising to target those
habits.
Your computer can get infected by clicking
on YES when an Active-X control window pops up or by installing
software that
is bundled with this spyware. Some popular programs that are
bundled with SpyWare including Kazaa, RadLight, and Internet Washer. The
best practise is not too download any programs that are advertised
on a web-site, pop-up, or through e-mail and never accept
Active-X controls except when you are on a reputable site such
as Microsoft Windows Update or Housecall Antivirus. If you
encounter a pop-up that says your computer is susceptible to
hackers, it
is all just marketing tactics, close the window.
So now the question is how do I know my computer has
been infected with Spyware, and how do I get rid of it. For a quick check
you can visit our Spyware Test Page,
but for a better check, it is recommended that you download a program called
Ad-Aware from here.
Ad-Aware is a great little tool that scans and cleans your computer of many
SpyWare programs.
It has an update feature where it can check online for the newest updates
to target the newest Spyware programs. It is completely free for the home
version.
Related Articles :
SpyWareInfo
- Infected File Sharing Programs
Spy-Ware vs. Anti-Spyware by Salon
SpyChecker - What is Spyware
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Guidelines to Online Purchasing
With Christmas fast
approaching and online sales increasing everyday, you should
know some basic guidelines
before purchasing anything online.
TBayIT has put together
some basic guidelines for you to use before shopping online:
Always
use a secure browser!
When purchasing something online your browser
uses it's built in security features to send and receive
information safely and securely. This security measure
is called SSL or Secure Socket Layer. This layer automatically
encrypts and scrambles information to be sent. To tell
if a website is using SSL, look for the lock at the bottom
of your browser window and check the URL (web address)
you are at. URL's that begin with https:// instead
of just http:// are secure. Both
Internet Explorer and Netscape (version
2.0+)
use SSL. To check your encryption level in Internet Explorer,
click on Help, then About Internet Explorer. It should
tell you your Cipher Strength and it should
be 128bit. If it isn't go to windowsupdate.microsoft.com
to download Internet Explorer 6.0.
Know
who you are buying from!
Always know all of the information about the merchant
you are purchasing from. Read their warranty information,
terms of service, and disclaimer. Read about their security
and check to make sure it is actually approved. Don't choose
to buy based on the look and feel of the website, anybody
can create and market a good looking website, even the
criminals. It is also good to know their return policy
in event that you do not like what you buy.
Never buy anything that comes via email or through
a pop-up ad, it is good practice to find the products
you want directly from a reputable site such as Amazon.com,
or EBay. Most fraudulent companies advertise via spam and
pop-ups.
Keep
good records of all your online transactions!
It is always good practice to print out a receipt
after you purchase something online. This is your record
of the transaction, store it in a safe place and use it
to reconcile your VISA information.
If you have any questions, comments or future
topics for this newsletter, please email news@tbayit.com
The Thunder Bay Information Technology Newsletter will be sent
out every month
and old
newsletters can be viewed here.
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