Email - it's quick, it's easy, and we depend on it daily for
communication. It's also a quick and easy way for hackers to distribute
viruses and other malicious code. Viruses are loaded onto computers in
various ways, but a common entry point is via email. Before you click
on links or open files sent via email, here are some things you should
know.
Attachments
Never open unexpected or unsolicited attachments, particularly from
someone you don't know. Those files may look like fun new games,
pictures, or animated graphics, but in reality could contain code that
allows a hacker to log into your computer, or set your computer up to
send spam across the internet. Don't depend on the file extension (
.jpg, .txt, .mp3) as an absolute measure of what the file actually is -
that cute belly-dancing rainbow teddy bear could read your address book
and mail itself back out to everyone you know. If the wording
accompanying an email attachment doesn't pertain to your most recent
conversation, or is very, very vague, email the sender back to ask what
the attachment is, BEFORE you open it. If they reply "what
attachment?", immediately trash it.
Phishing scams
Links are often provided in email to direct you to websites. 'Phishing
scams' are email or other solicitations that appear to come from a
company or bank, claiming your account has been compromised, or claiming
to require you to update your account information. These are attacks on
YOU - they convince you to enter your username and password at a fake
website, or to send it by email, by fax, or other means.
While the email request appears to be legitimate, the link you are
directed to follow actually sends you to a bogus website which may
attempt to load malicious software onto your computer. Banks, credit
card companies, PayPal and Ebay do NOT send email requesting account
information.
If you do feel a need to check out the request, directly initiate
contact with your bank or company to obtain accurate information. Use
phone numbers provided on your statements, the back of your credit
cards, or your own bookmarks to the institutions website.