NETWORK SECURITY
- 1. NETWORK SECURITY Present By:- Name :- AFAQUE JAYA Branch :- C.S.E. Semester :- 5th sem Roll No :- CSE/12/15
- 2. CONTENT• What is NETWORK SECURITY & why it is important? • Types of Attacker • Types of Network Attack? • Top 10 Cyber Attack Country • Penalty for Cyber Attack. • How to be safe and Secure?
- 3. What is NETWORK SECURITY? • Network security is the security provided to a network from unauthorized access and risk. It is the duty of Network administrators to adopt preventing measures to protect their network from Security threats. • Types of Network Security devices :- 1. Active Devices 2. Passive Devices 3. Preventative Devices e.t.c.
- 4. Types of Hacker White Hat Grey Hat Black hat
- 5. Types of Attack : - • HACKING • ATTRITION :- Method used to Damaged Network and systems. It include – 1: Distributed Denial Of Attacks(DDOA) 2: Resource Depletion Attacks. • MALWARE • TROZON HORSE • WORM • SPAM • PHISHING • BOTNET • PACKET SNIFFER
- 6. Virus and worm • A Virus is a “program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes . • Viruses can cause a huge amount of damage to computers. • An example of a virus would be if you opened an email and a malicious piece of code was downloaded onto your computer causing your computer to freeze. • Solution: Install a security suite, such as Kaspersky Total Protection, that protects the computer against threats such as viruses and worms.
- 7. Trozon Horse • A Trojan Horse is “a program in which malicious or harmful code is contained inside apparently harmless programming or data in such a way that it can get control and do its chosen form of damage, such as ruining the file allocation table on your hard disk. • In a network if a Trojan Horse is installed on a computer and tampers with the file allocation table it could cause a massive amount of damage to all computers of that network. • Solution: Security suites, such as Norton Internet Security, will prevent you from downloading Trojan Horses.
- 8. SPAM • SPAM is “flooding the Internet with many copies of the same message, in an attempt to force the message on people who would not otherwise choose to receive it. .I believe that SPAM wouldn’t be the biggest risk to a network because even though it may get annoying and plentiful it still doesn’t destroy any physical elements of the network. • Solution: SPAM filters are an effective way to stop SPAM, these filters come with most of the e-mail providers online. Also you can buy a variety of SPAM filters that work effectively.
- 9. Phishing • Phishing is “an e-mail fraud method in which the perpetrator sends out legitimate-looking emails in an attempt to gather personal and financial information from recipients. • In my opinion phishing is one of the worst security threats over a network because a lot of people that use computers linked up to a network are amateurs and would be very vulnerable to giving out information that could cause situations such as theft of money or identity theft. • Solution: Similar to SPAM use Phishing filters to filter out this unwanted mail and to prevent threat.
- 10. Packet Sniffer • “A packet sniffer is a device or program that allows eavesdropping on traffic travelling between networked computers. The packet sniffer will capture data that is addressed to other machines, saving it for later analysis. • In a network a packet sniffer can filter out personal information and this can lead to areas such as identity theft so this is a major security threat to a network. • Solution: “When strong encryption is used, all packets are unreadable to any but the destination address, making packet sniffers useless.So one solution is to obtain strong encryption.
- 11. Zombie Computer & Botnet • “A zombie computer, or “drone” is a computer that has been secretly compromised by hacking tools which allow a third party to control the computer and its resources remotely. • A hacker could hack into a computer and control the computer and obtain data. • Solution: Antivirus software can help prevent zombie computers.
- 12. Zombie Computer & Botnet • A botnet “is a number of Internet computers that, although their owners are unaware of it, have been set up to forward transmissions (including spam or viruses) to other computers on the internet. • This is a major security threat on a network because the network, unknown to anyone, could be acting as a hub that forwards malicious files etc to other computers. • Solution: Network Intrusion Prevention (NIP) systems can help prevent botnets.
- 13. Protecting Critical Information Infrastructure Critical information infrastructure is the backbone of a country’s national and economic security. It includes power plants, highways, bridges, chemical plants, networks, as well as the buildings where millions of people work every day. These can be secured with stringent collaboration plans and disciplined implementations.
- 14. FIREWALL
- 15. Types of FIREWALL • PACKET FILTERRING FIREWALL • APPLICATION/PROXY FIREWALL • HYBRID FIREWALL
- 18. List of Blocked Website In INDIA : -
- 19. While Opening BLOCKED Page
- 21. Way to Hide IP : -
- 23. WANACRY Attack
- 24. Punishments For Cyber Crime :-
- 25. The World (05) Biggest Cyber Crime 0 5 10 15 20 25 30 AMERICA CHINA BRAZIL INDIA GERMANY 2017 2017
- 26. How to be safe and secure • Keep updated • Keep a paid anti-virus and keep it up to date • Don’t go to unknown link • Keep your fire wall on • Quantum computing
- 27. NETWORK SECURITYT SOFTWARE • Malwarebytes • Kaspersky endpoint security • SolarWinds RMM • Norton Security • Splunk • Black Duck hub
- 28. CONCLUSION • Network Security is a very broad field and being a Network Security manager is not an easy job. • There are still threats such as password attacks that have no prevention. • Many of the threats set out to get personal information.
- 29. References • https://www.csoonline.com/category/hacking / • https://www.youtube.com/watch?v=Y3fYULVI ZR0 • Latest update about any type of ransomeware or vulnaribility http://www.cert-in.org.in/