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J
Jennifer Nadeau
1 of 6
Northland Security Systems
Computer Viruses
Types of Viruses  Nuisance viruses  Data-destructive viruses  Espionage viruses  Hardware-destructive viruses
Methods of Operation  Email viruses  Macro viruses  Boot sector viruses  Trojan horse viruses  Stealth viruses  Polymorphic viruses  Logic (time) bombs
Virus Symptoms  Files become corrupt  Program does not operate properly  Programs or files vanish  Strange messages appear on monitor  Less memory space available  A volume name has changed  Email message appears repeatedly
Security Strategies  Data backup  Disaster recovery plan  Data encryption  User IDs and passwords  Biometric authentication  Network sniffers  Mini webcams  Firewalls

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PowerPoint Sample

  • 3. Types of Viruses  Nuisance viruses  Data-destructive viruses  Espionage viruses  Hardware-destructive viruses
  • 4. Methods of Operation  Email viruses  Macro viruses  Boot sector viruses  Trojan horse viruses  Stealth viruses  Polymorphic viruses  Logic (time) bombs
  • 5. Virus Symptoms  Files become corrupt  Program does not operate properly  Programs or files vanish  Strange messages appear on monitor  Less memory space available  A volume name has changed  Email message appears repeatedly
  • 6. Security Strategies  Data backup  Disaster recovery plan  Data encryption  User IDs and passwords  Biometric authentication  Network sniffers  Mini webcams  Firewalls