This document discusses cyberspace, cybercrime, and cyber security. It defines cyberspace as the medium of computer systems used for communication, research, and browsing. Cybercrime is defined as crime committed using computers and the internet, where the computer is the object or subject of the crime. Examples of cybercrimes discussed include hacking, child pornography, computer vandalism, denial of service attacks, virus dissemination, software piracy, and phishing. The document also discusses the history of cybercrime and provides examples of hacking tools like keyloggers and sniffers that are used by cybercriminals. It emphasizes the importance of cyber security and provides recommendations for protecting against cybercrime.

1. AJAY SINGH
B.TECH EC 3RD YEAR
1006331007

2. What is Cyberspace And
Cybercrime
Cyberspace
An electronic medium of computer system within which people
can communicate do research, or simply window shop.
Cybercrime
Crime committed using a computer and the internet i.e.
where the computer used as an object or subject of crime.

3. History
-The first recorded cyber crime took place in the year
1820.
-The first spam email took place in 1978 when it was
sent over the Arpanet
-The first VIRUS was installed on an Apple computer in
1982

4. Types of cyber crime
-Hacking
-Child pornography
-Computer vandalism
-DoS attack
-Virus Dissemination
-Software Piracy
-Net Extortion
-Phishing
-Spoofing

5. 
Hacking
-Illegal intrusion into a computer system and/or network.
i.e. Unauthorized access
Hacking Tools
• Keyloggers
• Sniffers

6.  Key loggers are provide
logging which you press on
the keyboard buttons.
 Hackers can steal your
passwords or your personal
informations.
Key loggers

7. 
 is computer software or computer hardware that can
intercept and log traffic passing over a digital network or
part of a network.
 Hackers can sniff your packets with some softwares or
hardwares and they can steal your creadit card
numbers, paswords or e-mails.
Sniffers

8. Child pornography
-Abuse children/teens sexually
-More children would be using the internet and more are the
chances of falling victim to the aggression of pedophiles
Computer vandalism
-Damaging or destroying data rather than stealing or reusing

9. DoS attack
-Floods the bandwidth of the victims network or fills his e-
mail box with spam mail depriving him of the services he is
entitled to access
Software piracy
-Theft of software through the illegal copying of genuine
programs

10. 
Virus Dissemination
 -Malicious software that attaches itself to other software (virus,
worms, Trojan Horse)
 Computer viruses can damage your computer software system
even cause collapse your system.
 İts can delete your files
Net extortion
-Copying the companies confidential data in order to extort said
company for huge amount

11. Phishing
-Act of sending an e-mail to a user falsely claiming to be an
established legitimate enterprise in an attempt to scam the user into
surrendering private information that will be used for identity theft
Spoofing
-Getting one computer on a network to pretend to have the identity
off another computer,, usually one with special access privileges ,so
as to obtain access to the other computers on the network.

12. Cyber crime threatens national security
-Ex union home minister Shivraj Patil said that the rising level of
cyber crime is an indication of an enormous threat to national
security.
-Everything is being operated through computer and hence the risk
increases.
-India is at eleventh position , U.S. being the first
-Increase in number of cases reported

15. Cyber security
-Involves protection of sensitive personal & business information
through prevention, detection and response to different online
attacks
-Protects from attacks by detecting and preventing

16. 
15-441 Networks Fall 2002 16
Why do we need
security?
 Protect vital information while still allowing access
to those who need it
 Trade secrets, medical records, etc.
 Provide authentication and access control for
resources
 Ex: AFS
 Guarantee availability of resources
 Ex: 5 9’s (99.999% reliability)

17. 
17
Who is vulnerable?
 Financial institutions and banks
 Internet service providers
 Pharmaceutical companies
 Government and defense agencies
 Contractors to various government agencies
 Multinational corporations
 ANYONE ON THE NETWORK

18. Do’s
-Install a firewall , pop-up blocker
-Ensure your virus definitions are up to date
-Use strong passwords , don’t give personal information unless
required(not even phone number)
-Use secure connections
-Disable file sharing , turn off internet when not in use
-Use spam filters , delete spam immediately
-Use various passwords for various accounts
-Don’t believe in everything you read online
-Open attachments carefully
-Beware of promises to make fast profits
-Be smart , don’t act foolish and help in spreading spam

19. Conclusion
The only system which is truly secure is one which is switched
off and unplugged.
So , only way to be safe is Pay attention and
Act smart.

20. 
References
 http://img208.imageshack.us/img208/1195/chart.jpg
 http://www.howdoigetridofspyware.com/wp-
content/uploads/2009/03/isitsafecompressed.jpg
 http://computersafetytips.files.wordpress.com/2008/12/comp
uter-virus-picturejpg.jpg
 http://wwwdelivery.superstock.com/WI/223/1614/PreviewC
omp/SuperStock_1614R-10559.jpg
 http://www.microsoft.com/protect/images/viruses/diagram.
jpg
 http://www.gulfnews.com/images/08/09/16/16_bz_atm_ban
k_hacker01_5.gif
 http://www.terminally-incoherent.com/blog/wp-
content/uploads/2007/12/hackers.png

21. 