Social media platforms collect users' personal information which can sometimes be accessed or shared without users' consent, violating their privacy. Some key privacy issues discussed include data breaches from hacker attacks and third party apps, cyber manhunts doxing users, and targeted ads using private message content. Governments have begun enacting privacy laws while platforms and users also have responsibilities - platforms to protect data and be transparent, and users to manage privacy settings and share information wisely. Overall the document discusses important social media privacy concerns and some measures taken to enhance protection.

1. Social Media and Privacy
洪宣 庞晓燕 文静

2. CONTENT
Part 1 Concept of Privacy
Part 2 Cases of Privacy Disclosure
Part 3 Privacy Protection

3. Concept
of
Privacy

4. Privacy
• In general, it refers to the right to be free from secret surveillance and
to determine whether, when, how, and to whom, one's personal or
organizational information is to be revealed.
• Specifically, privacy may be divided into four categories (1) Physical:
restriction on others to experience a person or situation through one
or more of the human senses; (2) Informational: restriction on
searching for or revealing facts that are unknown or unknowable to
others; (3) Decisional: restriction on interfering in decisions that are
exclusive to an entity; (4) Dispositional: restriction on attempts to
know an individual's state of mind.
http://www.businessdictionary.com/definition/privacy.html

5. • Web 2.0
• Participatory information sharing
• Social networking sites (SNSs)
• Give personal information out
• A growing attention to the issue of privacy

6. Questions:
1. What is social media privacy?
2. How did data breaches happen?

7. Social Media Privacy
Basic Information: Name, telephone number, Email address, home address…
Social Networking activity data: browsing behavior, location, what time using
which services…
Analyzed data based on existed information: occupation, hobbies, attributes,
emotional tendency…

8. Exploiting Social Media Information for relational user Attribute Inference
— Institute of Automation, the Chinese of Academy Science

9. Cases of
Privacy
Disclosure

10. 1. Hacker Attack
—historical mega breaches
65 million
2013
167 million
2012
News on May 2016
user IDs, email addresses, password

11. ￥$150 $2300
Black market

12. 2. Third-party Websites
Meeting users’ need among
different platforms
Games、News、Music
Given certain permissions, they
can even see information that
our friends share with us.

13. In 2014, Gigya conducted a survey
which polled 4,000 respondents in the
United States and Britain on their
thoughts about data privacy
Convenience : 60% users will still log
into other websites, even though they
fear those companies aren't being
careful with their data
2. Third-party Websites

14. 3. Cyber Manhunt
 tracking down and exploring
one’s private information via
internet media
 sometimes gained notoriety
to the target after blame
and shame

15. 4. Users
In 2013, A survey interviewed 802 teens
that examines teens' privacy management
on social media sites
92% post their real name to the profile
they use most often.
84% post their interests, such as movies,
music, or books they like
82% post their birth date
62% post their relationship status
24% post videos of themselves

16. 5. Social Networking Sites
Max Schrems wrote term paper on
Facebook‘s lack of awareness of
European privacy law in 2011
Under European “right to access”, he
made a request for Facebook’s records
on him and received a CD containing
over 1,200 pages of data
Sensitive personal data: friends he no
longer followed, deleted information
Max Schrems
collecting data without valid permission

17. 6. Recommending ads, is that simple?
On Facebook or other social media apps, an advertiser can only send
ads to a user if that user has some connection to the brand in question.
A connection can include group membership or a "like" of that brand's
corporate page.

18. • An Arkansas lawyer and political blogger, Matt Campbell, has sued Facebook
for allegedly using data from private messages to target ads.
• The core of their complaint concerns the access advertisers have the messages.
• “Contrary to its representations, 'private' Facebook messages are
systematically intercepted by the Company in an effort to learn the contents
of the users' communications... This practice...enables Facebook to mine user
data and profit from those data by sharing them with advertisers.”

19. •
•
Imagining that your conversations
with your friends actually have
other unknown “audience”, kind of
scary?
Hacker News revealed back in Oct. 2012 that a shared link within
a private message between Facebook users also counts toward
the total.
Facebook admitted this to the Wall Street Journal in that
publication's follow-up story.

20. 7. They are tracking your locations?
• “people around you” in Wechat（附近的人）
• Three - point positioning method（三点定位法）
a popular saying in the social media
a panic concerning safety arises and spread
微信=危信？

21. • 记下自己和对方的距离，之后两次变换位置，重新测量自己和对
方的距离，最后以三次测量地点为圆心/三个距离为半径画三个
圈，三圆重合的位置就是对方所在的位置。
• It is proved that this method is
not as accurate as they say.
• 实际上“最精确也只能在100米范围
内画一个圈”
• But we still need to be cautious
about sharing our locations, it
might be used by strangers.

22. 8. No location sharing, but you know where I live?
• A student took 40 mins to deduce actress's address from pictures

23. 8. No location sharing, but I know where you live?
• A student from Tsinghua University said he took four simple steps to deduce
the famous actress (WANG Luodan)'s address through the pictures posted
on her Weibo.
• Step 1: Get information
• The student selected two pictures which contain some clues on her Weibo

24. • From the photographs, there are at least three square parterres we could
see. Then the student used GoogleEarth to intercept the bird's-eye view of
Beijing and compared it with the selected pictures of WANG's Weibo.

25. Step 2: Select the district
The student used other information on Weibo to narrow his selected
regions, like...

26. • Step 3: Search
• As excluding several possible regions, the student intercepted a
bird's-eye view in GoogleEarth and zoomed in a part of picture. He
soon found that the picture was extremely similar to WANG's picture
selected in step1.

27. • Step 4: Field test
The student went to the place he deduced in step 3 and finally verified his
conclusion.
So a simple picture is more than that.
Be careful about the detective
in your daily life, like you Suitors
or your Suspicious girlfriend.

28. 9. "People You May Know", but I don't want to be known
E1: friends recommending on QQ
• QQ’s “recommending friends” feature do not simply show your QQ name.
It shows your real name .
• You can find that almost all people you knew are listed here.
“腾讯的实名
好友推荐翻一
遍后，感觉就
是自己以前在
读年级所有学
生的通讯录“

29. E2: Washington woman found husband's other wife on Facebook
• An American named Alan L. O'Neill married a woman in 2001, moved
out in 2009, changed his name and remarried without divorcing her.
• The first wife first noticed O'Neill had moved on to another woman
when Facebook suggested the friendship connection to wife No.2
under the "People You May Know" feature.

30. • Wife No.1 then called the defendant's mother.
• “An hour later the defendant arrived at [Wife No.1’s] apartment, and she
asked him several times if they were divorced”, court records show. The
defendant said, 'No, we are still married.'"
• Neither O'Neill nor his first wife had filed for divorce, according to charging
documents. The name change came in December, and later that month he
married his second wife.

31. From the issue mentioned above...
• Obviously, Facebook helps the woman to find out that his husband has
cheated her for several years.
• The Prosecutor Lindquist said, "Facebook is now a place where people
discover things about each other ."

32. • But on the other side, some people are concerned about their privacy
of social contacts, because people can easily know what kind of people
you are acquainted with.
• Athima Chansanchai, a freelance journalist who writes about social
media, said Facebook over the years has played a role in both creating
relationships and destroying them.

33. Privacy
Protection

34. Privacy Protection
•Government and legislature
•Service providers
•Social media users

35. Government and legislature
• Lawmakers should enact laws and regulations to protect social media
users’ privacy.
• Stipulate the responsibility of service providers.
• Specify the punishment that online information criminals will face.
• Provide some guidance for social media users to raise their awareness
of online security and privacy protection.
• Offer necessary help when users are threatened, harassed or
defamed online

36. USA
• 25 states of the US have enacted social media privacy laws (2012.4-
2016.7)
• Regulating the use of social media by employers and educational
institutions

38. USA
• United States Congress
• Introduce Social Networking Online Protection Act

40. Australia
• Office of the Australian Information Commissioner

41. Australia
• Office of the Children’s eSafety Commissioner

42. Australia
• ThinkUKnow

43. Australia
• StaySmartOnline

44. Service providers
• When designing social networking sites and apps, personal data protection
should be proactive and preventative in nature, and it should cover the
entire cycle of personal data flow from collection to erasure.
• Personal information Collection Statement should be declared clearly
before users confirm signing up for accounts. Users have the right to know
under what circumstances will their personal data be collected, accessed or
shared and for what purposes. The purposes must be lawful and directly
related to a function or activity of the data users.
• Service providers should remind the users to pay high attention to
information storage, privacy settings and online security. For example, when
the users turn on the geolocation function of the apps, providers should
inform users of the potential risks.

45. Social media users
• Read the Privacy Statement before signing up for any SNS
• Manage your privacy settings
• Protect your accounts with strong, unique passwords
• Think twice before you post any information
• Don’t reveal personal information

46. Social media users
• Be selective when accepting a friend
• Exercise caution when clicking on links
• Turn off the geolocation features in social networking apps
• Don’t enable auto login
• Close old accounts that you don’t use anymore

47. THANKS