Cybersecurity crossword

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Across
  1. 4. Overwhelms servers with traffic
  2. 6. Scrambling data for security
  3. 8. Fraudulent attempt to steal data
  4. 10. Stealthy malware with deep access
  5. 11. Secures internet connections
  6. 15. Popular cryptocurrency
  7. 16. Malware that demands payment
  8. 17. Malware disguised as legitimate
  9. 18. Breaches systems illegally
Down
  1. 1. Remote data storage
  2. 2. Tracks keystrokes secretly
  3. 3. Network of infected devices
  4. 5. Uses fingerprints or face ID
  5. 7. Artificial intelligence
  6. 8. Software update fixing flaws
  7. 9. Software that spies on users
  8. 12. Harmful software like viruses
  9. 13. Network security barrier
  10. 14. Secret code for access