Computer Viruses

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Across
  1. 3. Criminal who breaks into systems (HACKER)
  2. 9. Fake messages to trick users into revealing data (PHISHING)
  3. 11. Program that locks files and demands money (RANSOMWARE)
  4. 12. General term for harmful software (MALWARE)
  5. 14. Malware that hides its presence from users/OS (ROOTKIT)
  6. 15. Self-replicating program that spreads over networks (WORM)
  7. 17. Malicious part of a virus that causes damage (PAYLOAD)
  8. 18. Secret code method to secure data (ENCRYPTION)
  9. 20. Malicious software that opens a hidden way into a system (BACKDOOR)
Down
  1. 1. False warning about non-existent malware (HOAX)
  2. 2. Malware hidden inside useful software (TROJAN)
  3. 4. Program that records keystrokes (KEYLOGGER)
  4. 5. A network of infected computers controlled remotely (BOTNET)
  5. 6. A harmful program that disrupts a computer system (VIRUS)
  6. 7. Security system that blocks unauthorized access (FIREWALL)
  7. 8. A malicious code triggered by specific events (LOGICBOMB)
  8. 10. Unwanted or junk email messages (SPAM)
  9. 13. Software that removes or blocks harmful programs (ANTIVIRUS)
  10. 16. Software that secretly collects user information (SPYWARE)
  11. 19. Software that displays unwanted advertisements (ADWARE)