It contains detailed information about social media privacy and cryptography also include privacy issues in social media. It is about the computing.

2. Introduction to
computing
• Nosheen sultan

3. Social media
&
Privacy
Including cryptography

4. Social media
• Social media is a computer based technology that facilitates the
sharing of ideas and information.
• By design it is internet based and offers users easy
communication of personal information and other content like
videos ,photos etc

5. Amazing social media statistics and facts
• The internet has 4.2 users
• There are 3.03 B active users
• On average , people have 5.55 B accounts
• The average daily time spend on social is 116 min a day
• Facebook messenger and whatsapp handle 60 B messages a day

6. Common social network and user member
• Facebook- 2.073B users
• Weehat 1.12B users
• 4chan 27.7M users
• Airbnb 150 M users
• Flickr 90 M users
• Google. 111M users
• Instagram 1B users
• Myspace 15 M users

7. What kinds of social media are there ?
• Blogs/microblogs
• Collaborative projects
• Content communities
• Social networking
• Virtual worlds

8. BLOG PLATFORMS
• Tumblr
1. Each user has his or her Tumblelog where they can publish short pist of
text , images , quotes, links , videos , audios , etc
2. Aquired by YAHOO in 2013
3. 550 M monthly users
4. 289.4 M blogs

9. Microblog platform
• Twitter
1. Consists of broadcasting daily shirt brust messages to the world , with
the hope that your messages are usefull and interesting to someone
2. A tweet is only 140 characters available to share information
3. 319 M users as if 2016
4. 750 tweets per sec

10. Collaborative Project
Wikipedia
1. A free encyclopaedia , written collaboratively by people who use it
2. 5,357,012 total articles
3. 41,677,432 total pages
4. 30,444,460 users with about 140,722 active

11. Content communities
Youtube
1. Is a free video – hosting website that allows members to store and serve
video content
2. Over 1B users
3. More than half of the YouTube views
come from mobile device

12. Social networks
Facebook
1. A popular free social networking website
2. Debuted in feb of 2004
3. 1.86 B active monthly user

13. Virtual words
• World of warcraft
1. A massively multiplayer online role playing game
2. Released in 2004 by Blizzard Entertainment

14. PRIVACY ISSUES
• Spamming
• Hacking
• Scamming
• Phishing
• Ruining reputation

15. Spamming
.
• Spam refers to the use of electronic messaging systems
to send out unrequested or unwanted messages in bulk.

16. Hacking
• Hacking is an attempt to exploit a computer
system or a private network inside a computer.
Simply put, it is the unauthorized access to or
control over computer network security
systems for some illicit purpose.

17. PHISHING
• Phishing is a cybercrime in which a target or targets are
contacted by email, telephone or text message by someone
posing as a legitimate institution to lure individuals into
providing sensitive data such as personally identifiable
information, banking and credit card details, and password.
The information is then used to access important accounts and
can result in identity theft and financial loss.

18. How to stay secure on social media?

19. Your password is like your toothbrush
choose a good one
Don’t share it with anyone and change it
occasionally

20. Turn off ur location in the device

21. Always logout your account on any social
network

22. Become familiar with the privacy settings if any
social website you use

23. CRYPTOGRAPHY
• Cryptography is the science and art of
transforming messages to make them secure and
immune to attack

25. Symmetric key cryptography
• Also known as secret key .
• Sender and receiver uses same key and an encryption/decryption
algorithm to encrypt/decrypt data i.e., the key is shared

27. Asymmetric key cryptography
• Also known as public key cryptography
• Sender and receiver uses different keys for encryption and decryption
namely PUBLIC & PRIVATE respectively