This document discusses computer security, ethics, hackers, crackers, and cybercrime. It defines computer security as protecting hardware, software, and stored information from threats. The importance of computer security is to protect users from different threats by installing security software like firewalls, antivirus, and anti-spyware. Cybercrime is any illegal act committed using computers or the internet, such as fraud, hacking, or spreading viruses. Hackers have in-depth network knowledge and create tools to break into systems, while crackers break in without permission using hacking tools for personal gain or damage. The document provides examples of hacking and cracking and assignment questions related to these topics.

1. COMPUTER
SECURITY &
ETHICS
Chapter 06
Hacker
Cracker
Cyber Crime

2. Computer Security is:
1. Protecting computer hardware ,software and
information stored on computer from threats .
Importance of Computer Security :
Computer security or safety Is important for computer
users to protect their computer from different threats .
It is necessary to install security software such as firewall
,antivirus and spyware on computers.
COMPUTER SECURITY

3.  Any crime that is committed by the means
of computer and internet technology by
having access to others computer .
 Criminals use computer and internet
technology to harm the society .
 Commonly committed crimes :
 Crimes such as fraud ,kidnapping ,murder
and crimes related with stealing money from
bank and credit card company .
 Download illegal software ,music files and
videos are also cybercrimes .
CYBERCRIME

4. Internet harassment and cyber bullying is also
serious committed crimes by cybercriminals .
• Threatening email
• Spreading rumors or virus
• Defamatory comments or any other form of bad
material( photos, videos)
• All above are the crimes done by cybercriminals
.
COMMONLY COMMITTED CRIMES

5. Hackers have in-depth knowledge of network programming.and
can create tools and malicious software for others to break into
networks and create problems.
Hackers computer experts try to gain
unauthorized access to computer system for
stealing and corrupting information .
Copy paste the link and watch the you tube video
regarding hacking
https://www.youtube.com/watch?v=9juhDTsmyTI
HACKERS

6. Cracker is a computer user do not have professional
computer skill to hack computer systems but they
have knowledge about using hacking tools
Crackers break into computers and cause
serious damage .they also break into web
servers and replace the homepage with a
page they have designed on their own . Short
video how key loggers are use
https://searchsecurity.techtarget.com/definiti
on/keylogger
CRACKER

7. HACKER CRACKER
HACKER
A person who illegally
breaks into
others’ computer
systems is known
as hacker.
Cracker is a computer
user
who breaks into
computer
system without
permission
using hacking tools for
personal gain or
damage.
HACKER AND CRACKER

8. Solve the following questions :
1.Define Cybercrime ?
2.What is the importance of
computer security ?
3.Differentiate between hacker
and cracker.
4.Write down in detail the
example of hacker and cracker
(1 for each)
ASSIGNMENT
Refer text
book pg.
158-160
HINT