topic : cyber crimes
By ashwini awatare
• Introduction to cyber crimes
• History of cyber crimes
• Categories of cyber crimes
• Impact of cyber crimes
• Cyber security
• Cyber laws
The internet in India is growing rapidly. It has given
rise to new opportunities in every field we
can think of— be it entertainment, business, sports
There are two sides to a coin. Internet also has its
own disadvantages. One of the major
disadvantages is Cyber crime — illegal activity
committed on the internet.
What is cyber crime ?
• Using the Internet to commit a crime.
▫ Identity Theft
• Facilitation of traditional criminal activity
▫ Stealing information
▫ Child Pornography
Cyber Crimes :-
• Defining Cyber Crime :->
• It’s an unlawful act wherein the computer is either a
tool or a target or both.
• Cyber space is a virtual space that has become as
important as real space for business, politics, and
History of Cyber Crime
• The first recorded cyber crime took place in the year
• In 1820, Joseph-Marie Jacquard, a textile manufacturer
in France, produced the loom. This device allowed the
repetition of a series of steps in the weaving of special
fabrics. This resulted in a fear amongst Jacquard’s
- employees that their traditional employment and
livelihood were being threatened. They committed acts
sabotage to discourage Jacquard from further use of the
new technology. This is the first recorded cyber crime!
History of cyber crimes :-
The first recorded cyber crime took place in
That is not surprising considenng the fact that
the abacus, which is thought to be the earliest
from of a computer, has been around since 3500
In India, Japan and China, the era of modern
computer, however, began with the analytical
engine of Charles Babbage.
The first spam email took place in 1976 when it
was sent out over the AR PANT.
The first virus was installed on an Apple
computer in 1982 when a high school student,
Rich skrenta, developed the ElK Cloner.
CATEGORIES OF CYBER
We can categorize cyber crime in two ways.
The computer as a target :- using a computer to attacks
other computer, e.g. Hacking, virus/worms attacks, Dos
The computer as a weapon :- using a
computer to commit real world crime e.g. cyber
terrorism, credit card fraud and
CATEGORIES OF CYBER
Cyber crimes can be basically divided into 3
1. Cyber crimes against persons.
2. Cyber crimes against property.
3. Cyber crimes against government.
Cyber crimes against persons
Cyber harassment is a distinct Cyber crime.
Various kinds of harassment can and do occur in
cyberspace, or through the use of cyberspace.
Harassment can be sexual, racial, religious, or
Cyber crimes against property
These crimes include computer vandalism .
(Destruction of others’ property), Transmission
of harmful programs, Unauthorized trespassing
through cyber space, Unauthorized possession of
Cyber crimes against government
Cyber terrorism is one distinct kind of crime in this
The growth of Internet has shown that the medium of
Cyberspace is being used by
individuals and groups to threaten the
international governments as also to terrorize the
citizens of a country.
Types Of Cyber Crime
Modification of a conventional crime by using
Frequently Used Cyber Crimes.
Modification of a
crime by using computers.
• Financial crimes
• Cyber pornography
• Sale of illegal articles
• Online gambling
Frequently Used Cyber
• Unauthorized access to computer systems or networks
• Theft of information contained in electronic form
• Email bombing
• Data diddling
• Salami attacks
• Denial of Service attack
• Virus / worm attacks
• Logic bombs
• Internet time thefts
• Web jacking
• Theft of computer system
• Physically damaging a computer system
• Kids (age group 9-16 etc.)
• Organized hacktivists
• Disgruntled employees
• Professional hackers (corporate espionage)
Only those authorized to view information.
Information is correct and hasn’t been altered by
unauthorized users or software.
Data is accessible to authorized users.
Computer Security -
White Hat – Good guys. Report
hacks/vulnerabilities to appropriate people.
Black Hat – Only interested in personal goals,
regardless of impact.
Gray Hat – Somewhere in between.
Computer Security -
▫ Someone that calls themselves a ‘hacker’ but really
▫ Someone hired to hack a system to find
vulnerabilities and report on them.
▫ Also called a ‘sneaker’ .
Computer Security -
Barrier between network and the outside world.
▫ Proxy server
Sits between users and server. Two main functions
are to improve performance and filter requests.
▫ Intrusion Detection Systems (IDS)
Monitors network traffic for suspicious activity.
Cyber Laws :-
• Law governing cyber space
• Cyber law encompasses laws relating to:
— Cyber Crimes
Electronic and Digital Signatures
— Intellectual Property
— Data Protection and Privacy
• Cyber crime: it refers to criminal
exploitation of the internet
• Electronic and Digital signatures : it refers to
mathematical scheme for demonstrating the
authenticity of digital message or documents
Intellectual property: it refers to legal concept
which refers to creations of the mind for which
exclusive rights are recognized.
Data protection and privacy: it refers to effective
legislation helps minimize monitoring by
governments , regulate surveillance by information
is properly protected.
computer technology =
difficulties to apply the
Not only real-world
crimes by using
Disable and log off a specific user account to
Disable and log off a group of user accounts which
access a particular service that is being attacked.
Disable and dismount specific (network) devices, for
instance disk devices that are being swamped.
Disable specific applications, for example, an
e-mail system subjected to a SPAM attack.
Close down an entire system, and divert
processing to an alternative or backup service on
a secondary network.
• Within the law enforcement agencies, a set of rules
must be developed to address the various categories
of computer crime.
• As such, investigators will know what and which
materials to search and seize, the
electronic evidence to recover, and the chain of
custody to maintain.