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Internet Security

Internet Security. Why Internet Security?. to protect Web sites and other electronic files from attack by hackers and viruses. . Different Types of Virus. Spyware Adware Embedded Programs Trojan Horse Browser Hijackers Dialers Malware. Why do people make Virus? . Profit A challenge

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Internet Security

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  1. Internet Security

  2. Why Internet Security? • to protect Web sites and other electronic files from attack by hackers and viruses.

  3. Different Types of Virus • Spyware • Adware • Embedded Programs • Trojan Horse • Browser Hijackers • Dialers • Malware

  4. Why do people make Virus? • Profit • A challenge • Boredom • Business

  5. How do I know if I’ve got Virus? • Computer is running slower than normal • Popups (on or off the internet) • New toolbars • Home page changes • Search results look different • Error messages when accessing the web

  6. What does Virus look like?

  7. What does Virus look like?

  8. What does Virus look like?

  9. What does Virus look like?

  10. What does Virus look like?

  11. What does Virus look like?

  12. What does Virus look like?

  13. What does Virus look like?

  14. What does Virus look like?

  15. What does Virus look like?

  16. How to against Virus? • Window Update • Firewall • Antivirus, etc

  17. What is Firewall? • A firewall is a device that can modify network traffic based on certain rules and criteria. • “front door” of the network. • All traffic entering and leaving the Company passes through the firewall

  18. The Firewall: A Basic Layout Server Customer Web Server Firewall Router Hacker Server Client Mail Server Hacker Internal Private Network External Private Network External Public Network

  19. Why Firewall? • Protect an entire network • Implemented on the router level • harder to configure not easy for crack

  20. Thank You

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