malware

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Across
  1. 2. a piece of software that appears to perform a useful function
  2. 5. locks a computer and encrypts files
  3. 7. spread through the network and use the system’s resources.
Down
  1. 1. a large collection of malware-infected devices
  2. 3. unwanted software that monitors and gathers information on a person
  3. 4. a malicious form of self-replicating software.
  4. 6. a worm, virus or Trojan