Anti-virus software

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Across
  1. 2. to stop a file from being downloaded.
  2. 4. labeling a safe file as dangerous.
  3. 6. making copy of files for avoiding data loss.
  4. 8. labeling a dangerous file as safe.
  5. 9. to find and mark file as infected.
Down
  1. 1. a virus that hides itself as part of OS.
  2. 3. a person who commits illegal acts online.
  3. 5. to isolate a file.
  4. 7. to search a system for viruses.