Cyber security challenge

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Across
  1. 3. type of email attack
  2. 5. update and ... your computer's software
  3. 6. network protection device
  4. 7. unwanted email
  5. 10. Australian Cyber ... Centre
  6. 14. pretending to be someone? (email)
  7. 16. A Microsoft Word document *extension* that may contain malicious code
  8. 18. encryption attack
Down
  1. 1. potential harm
  2. 2. harmful 'replicating' software
  3. 4. malicious software
  4. 8. secret phrase for authentication
  5. 9. another name for cyber criminal
  6. 11. secret digits to protect your account
  7. 12. secure network connection
  8. 13. Microsoft Excel ... can contain malware
  9. 15. encrypt and protect your USB using Microsoft ...
  10. 17. strong account protection