ICT Safety and security

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Across
  1. 1. A computer expert who does the act of hacking
  2. 3. Computer system that prevents unauthorized access to a network
  3. 4. Never save your password on a
  4. 5. Method by which information is converted into secret code that hides the information's true meaning
Down
  1. 2. Protection of computer systems from unauthorised access, theft or harm