How do you decide whether to open an email attachment?

How do you know whether it is safe to open a file from the Internet or an email message?More trustworthy sites tend to…‣ Be certified by an Internet trust organization such as BBBonline, TRUSTe, or WebTrust. Lookfor their logo on the site and click the logo to make sure it is authentic.‣ Provide a privacy statement that you can understand and that you are comfortable with.‣ Provide a way to contact the creator or organization—a physical location, phone number, e-mail address, or mailing address.‣ Have a clearly posted return policy (when applicable) that allows you to return themerchandise if you are not satisfied.‣ Offer proof of secure transactions, such as a statement that your credit card information will beencrypted, or a symbol in the browser status area that indicates the transaction is secure.Is it safe to download that file?You can help protect your computer by thinking carefully before you download a file.Figure 4: "Attachments can contain viruses that may harm your computer"Heed any warnings‣ When a Web site attempts to download a file to your computer, Internet Explorer will display amessage about saving, running, or installing the file.‣ If the message contains a yellow caution icon, then the file has been identified as a type thatcould pose a risk.Page 6 of 8Attachment may contain a virus