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NETWORK SECURITY AND VIRUSES

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Sumit Pandey

This presentation consists of everything about networks and how to protect them, viruses, their effects and how to prevent them.

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NETWORK SECURITY & VIRUSES By - Sumit Pandey
NETWORK SECURITY CONCEPTS The networking offers endless opportunities and possibilities to every user of it, along with convenience. But these endless benefits are not free from risks as there are many a risks to network security. The problems encountered under network security are as follows : 1. Physical Security holes 2. Software Security holes 3. Inconsistent Usage holes
Protection Methods : • Authorization - • Authentication - • Encrypted Smart Cards - • Biometric Systems - • Firewall - ●● Packet Filter ●● Application Gateway ●● Proxy Server ●● Circuit-level Gateway
Important Terms related to Network Security : A Cookies - Cookies are messages that a web server transmits to a web browser so that the Web server can keep track of the user's activity on a specific Web site. Parameters that can be passed to them - • 1. Name 2. Value 3. Expiration date • 4. Path the cookie is valid for 5. Domain • 6. Need for a secure connection ● Magic Cookies ● Netscape & Microsoft Internet Explorer
Important Terms related to Network Security : B Hackers & Crackers - The Crackers are the malicious programs who break into secure systems whereas Hackers are more interested in gaining knowledge about computer systems and possibly using knowledge for playful pranks. ●The difference. C CyberLaw - Cyberlaw is a generic term, which refers to all the legal and regulatory aspects of Internet and the World Wide Web.
ISIS hacks Australian airport website
Important Terms related to Network Security : Cyber Crimes - An unlawful act where in the computer is either a tool or a target or both. Classification of Cyber Crimes - 1. Tampering with computer source documents 2. Publishing of information, which is obscene in electronic form 3. Hacking 4. Child Pornography 5. Accessing protected system 6. Breach of confidently and privacy D
V I R U S E S Computer Virus is a malicious program that requires a host and is designed to make a system sick, just like a real virus. Types - 1. File Infectors 2. Boot Sector Viruses 3. Macro Viruses
VIRUS • How Computer Virus Spread ? • Damage that Viruses Cause - TROJAN HORSE • How Trojan Horses Spread ? • Damage Caused by Trojan Horses - WORMS • How Warms Spread? • Damage that Worms can Cause ? SPAM • Avoiding Spam VIRUS PREVENTION • Ways -
T H A N K Y O U

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NETWORK SECURITY AND VIRUSES

  • 1. NETWORK SECURITY & VIRUSES By - Sumit Pandey
  • 2. NETWORK SECURITY CONCEPTS The networking offers endless opportunities and possibilities to every user of it, along with convenience. But these endless benefits are not free from risks as there are many a risks to network security. The problems encountered under network security are as follows : 1. Physical Security holes 2. Software Security holes 3. Inconsistent Usage holes
  • 3. Protection Methods : • Authorization - • Authentication - • Encrypted Smart Cards - • Biometric Systems - • Firewall - ●● Packet Filter ●● Application Gateway ●● Proxy Server ●● Circuit-level Gateway
  • 4.
  • 5. Important Terms related to Network Security : A Cookies - Cookies are messages that a web server transmits to a web browser so that the Web server can keep track of the user's activity on a specific Web site. Parameters that can be passed to them - • 1. Name 2. Value 3. Expiration date • 4. Path the cookie is valid for 5. Domain • 6. Need for a secure connection ● Magic Cookies ● Netscape & Microsoft Internet Explorer
  • 6.
  • 7. Important Terms related to Network Security : B Hackers & Crackers - The Crackers are the malicious programs who break into secure systems whereas Hackers are more interested in gaining knowledge about computer systems and possibly using knowledge for playful pranks. ●The difference. C CyberLaw - Cyberlaw is a generic term, which refers to all the legal and regulatory aspects of Internet and the World Wide Web.
  • 8. ISIS hacks Australian airport website
  • 9. Important Terms related to Network Security : Cyber Crimes - An unlawful act where in the computer is either a tool or a target or both. Classification of Cyber Crimes - 1. Tampering with computer source documents 2. Publishing of information, which is obscene in electronic form 3. Hacking 4. Child Pornography 5. Accessing protected system 6. Breach of confidently and privacy D
  • 10. V I R U S E S Computer Virus is a malicious program that requires a host and is designed to make a system sick, just like a real virus. Types - 1. File Infectors 2. Boot Sector Viruses 3. Macro Viruses
  • 11. VIRUS • How Computer Virus Spread ? • Damage that Viruses Cause - TROJAN HORSE • How Trojan Horses Spread ? • Damage Caused by Trojan Horses - WORMS • How Warms Spread? • Damage that Worms can Cause ? SPAM • Avoiding Spam VIRUS PREVENTION • Ways -
  • 12.
  • 13. T H A N K Y O U