So what can you do to prevent malicious viruses via e-mails? First look at the "from" address. Be sure you recognize it. Than take a second look at the domain name (that's the name after the "@" symbol). Make sure it's spelled correctly. At the office, an internal e-mail from your coworker would display only his or her name. If it also shows the full e-mail address, it came from the outside.
Look for a "reply" address that matches the "from" address.
More soon..........
