GGH - The odd word out here is a clue to the location of the next riddle.

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Across
  1. 3. Unethical practice of gaining unauthorized access to computer systems.
  2. 5. Act of impersonating a legitimate entity to deceive individuals or gain access.
  3. 6. A type of computer memory.
  4. 9. A small portable computer.
Down
  1. 1. Securing computer systems against unauthorized access.
  2. 2. A popular operating system.
  3. 3. The brain of a computer.
  4. 4. Term for gaining access to a secure network through.
  5. 7. Malicious software used to gain unauthorised access to computer systems.
  6. 8. Desired outcomes.