E-mail and Instant Messaging (IM) are used extensively for both business and personal purposes. Unfortunately, hackers, online predators and worm or virus authors can also make use of both types of communication. E-mail attachments can contain harmful software or e-mails can be used to request confidential information or trick you into accepting fake offers.
It is important that you to take steps to ensure e-mail and IM security. You should avoid opening e-mail with attachments, unless it is from someone you know. Do not respond to junk mail or to unsolicited commercial mail and protect yourself against phishing. To ensure IM security, only chat with people you know and avoid opening IM attachments.
You can read more about email on the Learn the Net web site.
Next: E-Mail Attachments