Security x Word

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Across
  1. 2. Maori war dance? Illegal computing more like
  2. 5. more than just a number cruncher
  3. 7. Shhhh don't tell anyone it's a
  4. 11. Malicious deception
  5. 12. Works like a?
Down
  1. 1. It's all about me
  2. 3. Of conduct maybe?
  3. 4. Sideways on, or online cv
  4. 6. To unlock this answer...
  5. 8. Man, scary robots from Dr Who
  6. 9. Railway, Mud and Fire e.g.
  7. 10. Was fixed, now its more mobile