Computer crimes and ethics involve threats to businesses from hacking, malware, and theft of passwords or sensitive information. The document outlines that computer users should be honest, respect others' privacy, and obey cyber laws. It defines various computer crimes like malware, spam, and software piracy. Malware can monitor users without permission while spam spreads unsolicited messages. Piracy involves illegally duplicating or downloading copyrighted software. The document also discusses worms, spyware, ransomware, phishing, cookies, firewalls, proxy servers, encryption, decryption, and cyber laws in India to prevent computer crimes.

1. Computer Ethics and
cyber crime

3. A crime is a crime that
involves computer and
network.
* It gives threats to
integrity,safety and survial
of most business

5.  Do not use pirated s/w
 Do not use unauthorized user account
 Do not steal others password
 Do not hack

6.  1. HONESTY :
 User should be truthful while using internet

7.  User should not share any important informaton
with unknown

8. Each users should
respect the privacy of
other users

9. Each user should
maintain professional
conduct

10. Users should strictly
obey the cyber law in
computer usage

11. 

12.  An Ethical issue is a problem or issue that
requires a person or organisation to choose
between alternatives and must evaluated as
right and wrong

14. COMPUTER CRIMES AND THEIR FUNCTION
1. Malware
2. Harvesting
3. Spam
.

15. 1. MALWARE
Malicious program that performs
variety of functions including
monitoring user’s computer activity
without their permission

16. 
 A person or program collects login and
password information from legitimate
user to illegally gain access to others
account

18. software piracy
 1. Duplicating and selling copyrighted programs
 2. Downloading s/w illegally through network

19.  A entirely different approach to software piracy is
called shareware
 Shareware publishers encourage users to give copies
of programs to friends and colleagues but ask
everyone who uses that program regulary to pay a
fee to the program’s author diretly.

20. Commercial programs that
are made available to the
public illegally are often
called warez.

21. 


23.  Leads to :
 Identity theft or
 Gaining personal information
 Protected by :
 1. Firewall
 2. Passwords and user id
 3. antihacking software

24.  Cracking is where someone edits a
program source code so that the code
can be exploited or modified
 Cracking means trying to get into
computer system in order to steal,
corrupt, or illegally view data.

27. • A Virus Is A Small Piece Of
Computer Code That Can Repeat
Itself And Spreads From One
Computer To Another By
Attaching Itself To Another
Computer File.
• EG. Trojan Horse

28. • Worms are self repeating and do not require a
computer program to attach them selves
• It continually look for vulnerabilities and
report back to the author of the worm when
the weakness are discovered

29. SPYWARE
• Spyware can be installed
automatically
• when the attachments are opened by
clicking on the links or
• By downloading infected softwares

30. RANSOMWARE
• Ransomware is a malicious program
that demands payment after
launching a cyber attack on a
computer system
• Many organisations cost million
each year

31. What is phishing?
• This computer crime enters through emails
and steal
• user data
• login names
• Passwords
• Credit card details

32. What is a cookie ?
• A cookie is a small piece of data sent from a
website and stored on users computer
memory by the users web browser while the
user is browsing the internet

33. Uses of cookies
• To collect demographic information who has
visited the website
• Sites often use this information to track how
often visiters come to the site and remail on
the site

34. Firewall
• A fire wall is a computer network security
based system that monitors and controls
incoming and outgoing network traffic based
on pre defined security rule

35. Proxy server
• It acts as an intermediary between the end
user a webserver
• It examines the requests and grants
permission

36. What is Encryption ?
• It is a process of translating the plain text data
into cipher text

37. Uses of encryption
• It is used to protect data in coommunication
system
• Ex: data transfered through
• Mobile telephones
• Wireless intercom system
• Bluetooth devices
• Bank ATM’s

38. What is Decryption?
• It is the reverse process of converting the
cipher text back into plain text

39. Cyber law
• In India Cyberlaw and IT act 2000 are being
articulated to
• prevent computer crimes

40. PREVENTION
• Complex password settings
• Disconnect from internet if not in use
• Do not open spam mails
• Updating antivirus software