Cyber security

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Across
  1. 4. Something to protect your data
  2. 6. something that is not known
  3. 7. a person that does illegal stuff on a computer
Down
  1. 1. something that spies on what you do
  2. 2. something that damages your computer
  3. 3. doing something illegal on a computer
  4. 5. to keep something less vulnerable is to keep it..