* Use strong
passwords. Choose passwords that are difficult or impossible to guess.
Give different passwords to all accounts.
* Make regular
backups of critical data. Backups must be made at least once each
day. Larger organizations should perform a full backup weekly and
incremental backups every day. At least once a month the backup media
should be verified.
* Use virus protection
software. That means three things: having it on your computer in the
first place, checking daily for new virus signature updates, and then
actually scanning all the files on your computer periodically.
* Use a firewall
as a gatekeeper between your computer and the Internet. Firewalls
are usually software products. They are essential for those who keep
their computers online through the popular DSL and cable modem connections
but they are also valuable for those who still dial in.
* Do not keep
computers online when not in use. Either shut them off or physically
disconnect them from Internet connection.
* Do not open
e-mail attachments from strangers, regardless of how enticing the
Subject Line or attachment may be. Be suspicious of any unexpected
e-mail attachment from someone you do know because it may have been
sent without that person’s knowledge from an infected machine.
* Regularly download
security patches from your software vendors.
