virus

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Across
  1. 3. A virus is a biological agent that reproduces inside the cells of living hosts.
  2. 4. software, or simply software, is a part of a computer system that consists of data or computer instructions,
  3. 6. standalone malware computer program that replicates itself
  4. 9. A display screen used to provide visual output from a computer
Down
  1. 1. and storage device dedicated to storing files.
  2. 2. A Denial of Service (DoS) attack is different from a DDoS attack. The DoS attack typically uses one computer and one Internet connection to flood a targeted system or resource.
  3. 5. In computing, a Trojan horse, or Trojan is any malicious computer program which misleads users of its true intent
  4. 7. messages distributed by electronic means from one computer user to one or more recipients via a network.
  5. 8. can move the on-screen cursor to different items on the screen