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1. What is Spam?
2. Why is spam a problem?
3. How common is spam?
4. What can businesses do to
help cut down on spam?
5. Help! I've got spam. What do I
do?
6. There is a wide choice of
anti-spam software. Can I try before I buy?
1. What is Spam?
Spam
is
the common term for electronic 'junk mail' - unsolicited commercial e-mail and
is a powerful advertising channel for many companies.
2. Why is spam a problem?
Spam now makes up more than 60 per cent of all
email traffic, and is having a significantly negative effect on both businesses
and individuals.
Once
considered only a minor nuisance, spam has emerged as one of the greatest
Information Technology issues for organisations today. From the minute
users log onto their e-mail system, they encounter a deluge of unwanted e-mail
that flows into their mailboxes all hours of the day and night.
The billions
of unwanted email messages circulating across the Internet disrupt email
delivery, clog up computer systems, reduce productivity, waste time, raise the
cost of Internet access fees, irritate users and erode their confidence in using
email. Many spam messages also contain material that is offensive or fraudulent,
and spam is sometimes used to spread computer viruses.
Spam presents
three major threats:
-
Overwhelming message volume.
Spam drains employee productivity as workers waste time reading, deleting or
even responding to spam e-mails. Additionally, the sexually explicit
nature of many spam messages poses potential liability for organisations.
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Phishing.
Phishing is a specific type of spam message that solicits personal
information from the recipient, such as social security, credit card and bank
account numbers.
-
Spoofing.
Spoofing is a deceptive form of spam that hides the domain of the spammer or
the spam's origination point. Spammers often hijack the domains of
well-known businesses or government entities to enhance the validity to their
commercial message or scam. An example of spoofing is an e-mail that
appears to come from a known e-mail address that requests a credit card number
to confirm the order of goods.
3. How common is spam?
Most
organisations experience extremely high volume of spam. Research indicates
that spam has increased from under 20% of corporate e-mail in 2002 to over 80%
in 2004.
4. What can businesses do to help cut down on
spam?
Implementing
these basic policies and strategies can help cut down on spam:
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Get a
spam-filter. Your ISP may offer a filter service. If not, you may wish to buy
filtering software. Please contact Axiom Networking Solutions to discuss your
requirements, as obviously the best product for a desktop user or small
business would not be appropriate or adequate for meeting the needs of a large
enterprise.
-
establish
written guidelines for how corporate e-mail addresses and Web browser are to
be used by employees.
-
Educate
users to never respond to an e-mail when the sender is unknown, even to remove
themselves from a mailing.
-
Be careful
about disclosing your e-mail address (Read the tips in the right-hand column
of this page for tips.)
-
Encode
corporate e-mail addresses posted on company Web sites in Javascript or HTML
to hinder a spider’s ability to recognize them. (The
e-mail address looks normal and acts normal [to Web site visitors], but from
the back end you just see code.)
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Even if
you’re using anti-spam software, urge users
to report spam that sneaks through to a corporate e-mail address for further
analysis.
-
Decide how
much control your company wants over e-mail that’s been deemed spam, and
whether end users or the network administrator should manage it.
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Educate your
end users to identify and report any spam that does get through, and alert
them to e-mail fraud. One clue to detect spam is if the sender’s e-mail
address differs from the company’s name in the message.
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Limit Web
surfing on company PCs; an easy way for spammers to find live e-mail addresses
is by lifting them from sites where visitors have input their address.
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Adjust your
Internet Explorer 6 security settings to help prevent unwanted
intrusions when you go on the Web. See
Working With Internet Explorer 6 Security Settings for detailed
directions.
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Review the
privacy policies of Web sites. When you sign up for Web-based services
such as online banking, shopping, or newsletters, review the privacy
policy closely before you reveal your e-mail address. If a Web site does
not have a privacy statement posted, be cautious and consider contacting the
site owners before sharing sensitive information.
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Don’t open
emails that appear to be from a dubious source. It is not wise to open any
email message that appears to be from a
dubious source. However, if you have already opened the message, don’t click
on any links, including the unsubscribe facility – often spammers just include
fake unsubscribe facilities in order to confirm that your email address is a
real address. If you click ‘unsubscribe’, you may open yourself to a deluge of
spam, both from that spammer and from others to whom they sell your email
address. Note that for legitimate commercial electronic messages (those that
have been sent with your consent), the unsubscribe facility must work, and it
should be safe to use the facility.
5. Help! I've got spam. What do I do?
Step 1:
Ignore unwanted e-mail.
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Don't reply
to e-mail asking for personal information. Most legitimate companies will not
ask for personal information via e-mail. If a company you trust (e.g., your
credit card company) writes to ask for personal information, call—do not
write—and report it. Be sure to use a number you found yourself, either
through the yellow pages, a bank statement, a bill, or other source. (Don't
use a phone number provided on the e-mail.) If it's a legitimate request, the
phone operator should be able to help you.
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Watch out
for spoofed mail. "Spoofing" refers to duplicating a legitimate e-mail, such
as a company's newsletter. These spoofed mails may be used to trick you into
downloading a virus or sending personal information, such as a credit card
number. When in doubt, contact the company you think sent the e-mail.
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Don't buy
anything from a spam mail. Some spammers make their living on people's
purchases of their offerings. So resist the temptation to buy their products
if you don't want to take the chance of getting on more junk e-mail address
lists.
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Never, ever
contribute to a charity from spam mail. Unfortunately, some spammers prey on
your good will. If you receive an appeal from a charity, treat it as spam. If
it is a charity you would like to support, call them and find out how you can
make a contribution. Never send your information via e-mail, however.
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Think twice
before opening attachments, even if you know the sender. If you cannot confirm
with the sender that a message is valid and that an attachment is safe, delete
the message immediately, and run up-to-date antivirus software to check your
computer for viruses.
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Don't
forward chain e-mail messages. Chain mails may be hoaxes, or even a virus
delivery system. Plus you lose control over who sees your e-mail address.
Additionally, there are reports that spammers use chain letters to gather
e-mail addresses. To check on the legitimacy of a chain letter or potential
hoax, go to Hoaxbusters.
Step 2:
Report junk e-mail and its senders
Get active.
Put junk e-mail senders on the defensive and report spam:
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If you're
using MSN Hotmail, report junk e-mail before you even open it. To find out
how, click the Help button on the far right of the screen, and click Filters
and Junk E-Mail. Then click Report junk e-mail.
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Forward spam
to the spammer's Internet Service Provider (ISP). If you get unwanted mail,
the sender's address will show the ISP name after the "at" (@) sign. If it
came from MSN.com, forward the entire e-mail with headers, to
mailto:mailto:abuse@hotmail.com.
If the spam originated from another ISP, forward the headers (following the
directions above) to the abuse alias at that ISP—for example, try abuse@<ISPname>.com.
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If you have
already opened the email and/or it seems to be from a legitimate Australian
business, you can take the following action:
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Contact
that business directly: If you feel comfortable doing so. You can simply
'unsubscribe', or make contact by telephone or letter and ask them not to
send you any more messages.
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Send a
spam report/complaint to the ACA: If contacting the business does not solve
the problem - if their spam message lacks accurate sender identification,
you can't unsubscribe or they send you more spam - you can use the ACA's
online form
to
make a spam report/complaint.
Please
include the header information of email spam messages. Header information
(data hidden within every email) greatly assists the ACA to track where spam
comes from. Header information is quick and easy to extract, and the form
has step-by-step instructions.
6. There is a wide choice of anti-spam software.
Can I try before I buy?
Yes, there is a wide choice of anti-spam programs
that offer a free trial period. Remember
that one size does not fit all and obviously the best product for a
desktop user or small business would not be appropriate or adequate for meeting
the needs a large enterprise. Contact
Axiom Networking Solutions for more information.
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