Online security crossword

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Across
  1. 3. Fake emails for info
  2. 4. Monitors user activity
  3. 6. Adds extra login security
  4. 9. Locks files for ransom
  5. 11. Fakes identity online
  6. 13. Records keystrokes secretly
  7. 17. Protects account access
  8. 19. Store browsing information
Down
  1. 1. Secure internet connection
  2. 2. Scrambles data securely
  3. 5. Network of infected computers
  4. 7. Hidden unauthorized access
  5. 8. Harmful software program
  6. 10. Software to stop malware
  7. 11. Unwanted bulk emails
  8. 12. Blocks unauthorized access
  9. 14. Malware hidden inside
  10. 15. Unauthorized system intruder
  11. 16. Fixes software vulnerability
  12. 18. Self-replicating malware