There are some general rules of computing hygiene for handling e-mail.
+ Purchase an antivirus program and use it. Make sure it is scanning the incoming mail. Keep its "virus recognition" files up-to-date.
+ Do not open an e-mail message if you do not recognize the sender-just delete the e-mail.
+ Even if the sender is known, do not open or run any attached files until you know the purpose or content of the file.
Summary
As promised, we have not gone into great detail about computer technology. We have also not included a bibliography because technology is changing every day. We recommend that the interested reader visit any library or local bookstore to find up-to-date information on computer technology. For the very latest information, the Internet is the place to search.