malware

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Across
  1. 2. malicious software
  2. 4. a virus makes copies of itself by attaching itself to another program
  3. 6. a Trojan seems to do a useful task ,but in the background ,it is carrying out it's real malicious purpose
Down
  1. 1. makes copies of itself ,like a computer virus , but a worm works by itself.
  2. 3. software software that can detect the presence of a virus within a computer file and warn you there is a problem
  3. 5. is software designed to collect information about what you are doing on the computer