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

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