Cyber security

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Across
  1. 3. a method of changing a message to conceal its meaning
  2. 6. software takes over a computer and kudnaps data
  3. 7. also called an ID
  4. 8. a system of symbols such as letters and numbers to hide a meaning
Down
  1. 1. someone who secretly gets access to our information
  2. 2. sneaks into your computer to cause damage
  3. 4. what uses clever advertisements to trick you into giving away information
  4. 5. copying a file such as a photo, video or game