How can the risk of unauthorized computer system access be reduced when connected to the internet?

A ) By using a firewall ✅

B ) By setting up a WAN

C ) By encrypting all data stored in the system

D ) By installing anti-spam software

Related Questions
  1. -------- occurs when a person sends a message with angry antagonistic content .
  2. Which of the following is not a system tool?
  3. What type of virus attached itself to executable files?
  4. To protect a computer from viruses what should you install in your computer?
  5. A computer can not affect which of the following?
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