How to avoid email threats
Checking your email has become a dangerous business. The number and types of
email borne threats that can cause harm to your computer or your privacy are
growing. Sometimes the actual danger imposed by these threats can be over
hyped, but you still need to know what could constitute a dangerous email
message and how to respond to the threat.
Virus attacks
When emails are sent as plain text, it becomes impossible to contract a
computer virus just by reading email. That's because something -- a programme,
worm, or other active threat -- actually has to run on your computer in order
to infect it. Increasingly today, we all send and receive emails in HTML
format, this makes users more vulnerable to contracting a potentially
destructive computer virus that plain text emails. As when an email is sent in
an HTML format (the same format used to create Web pages, on which various
types of programmes can be run automatically) the possibility of receiving a
virus on reading an email message does exist.
There are, however, ways to safeguard against this. The first is to keep your
email security programme updated, downloading and applying the latest security
patches and fixes. Second is to set up your email programme to allow messages
to be read only in plain text format. Most email programmes provide this
option. In Microsoft's Outlook programme, for instance, you would open the
Tools menu, and select Options.
Then, from the Options dialog box, click E-mail Options, and select the check
box labelled "Read all standard mail in plain text."
Dangerous links
Remember, though, that most email viruses are contracted when you perform some
action, such as opening an infected attachment or clicking a link that takes
you to a site that downloads a virus on to your computer.
So the golden rule of reading email is this: if it looks suspicious, don't open
anything attached to it or click any links in it. These days, in fact, it makes
sense not to click links in email messages at all. Instead, if you think a
legitimate source has sent you a message, open a web browser separately and
visit the website.
Email 'bomb' at work
An email "bomb" refers to the large number of email messages sent to an account
with the primary aim of bringing the account down. When an email server is
flooded with email messages, it is unable to receive other email messages and
effectively becomes useless. An account that receives an email bomb will also
experience an interruption in the transfer and processing of legitimate mail,
as well. Email bombs are particularly dangerous as even if an email server is
brought down to stave off the problem, the email bombardment will continue
where it left off when the server is restarted. Another type of "bombing"
occurs when a user signs someone for multiple newsletter services and other
automatic email generation services that can bring a person's inbox to its
knees.
The only way to recover from an email bomb is probably to contact your Internet
service provider for help. It may be necessary for you to disable or change
your email address, at least temporarily.
Spammers on the move
You think those spam mails only clutter your inbox, there's more they can do.
This includes installing spytools or other malware on your comp. Sender of
spam and potentially harmful emails use a number of tactics to get your email
address. If you have posted your email address anywhere on the Internet, it can
be "harvested" by programmes designed to scour the Internet and retrieve freely
available email addresses.
To prevent this from happening, never post your email address anywhere on the
Internet -- including message boards and personal websites -- in an unaltered
form.
If you must post your address somewhere online, write it in a form that is
understandable by humans but not by a machine, such as "yourname -- at--
hotmail.com." Also, take advantage of the multiple email accounts you can have.
Email Spyware
Another significant email threat is email spyware. Most often transmitted as
part of another related software programme, email spyware compromises personal
information, distributing it to unauthorised parties. While some spyware
programmes are distributed through email by association with Trojan horses,
others are sent directly as a worm or virus.
An example of an email spyware is 'Ssppyy programme' which gathers sensitive
information from infected computers and transmits it to an e-mail address.
Ssppppy arrives as an electronic greeting card, and, once opened, the e-mail
spyware installs itself surreptitiously on the user's computer.
Can kill privacy
Emails can also threaten your privacy. Remember, they can be forwarded to any
number of people and can be used against you. If you do not want to risk the
whole world knowing something, it is best to convey it verbally. Use the
'Reply All' button sparingly and thoughtfully. Someone ended up forwarding his
PAN number to the entire office!
To unsubscribe send a message to [EMAIL PROTECTED] with the subject unsubscribe.
To change your subscription to digest mode or make any other changes, please
visit the list home page at
http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in
