Family Feud
Family Feud Example
• http://www.youtube.com/watch?v=dkgS0wfJlBY&feature=fvst
Family Feud Rules
• Face-off to see who can guess the highest ranked answer
• Face-off winner’s team get to guess all the answers
• Each round is worth $10*number of answers
• If a team gets all the answers, they win the money. If they get three wrong the other team can steal.
Name
Private information you might reveal online
2
Location
Financial
everythingBirthday/age
3
4
51X
Lock
Evidence that your information will be encrypted
2
Asks for password
https
3
1X
McAfee
A website that is trustworthy
2
Yahoo
msnMy Bank
3
4
5
6
1X
spyware
A website that is malicious
2
porn
3
1X
Change password
A way to avoid being a victim of identity theft
2
Don’t give out SSN
Delete unwanted emails
Stay offline
3
4
1X
DNS failure
Reasons for “certificate” errors
2
Self-signed
hackingNo idea
3
41X
Email address
Information that is automatically sent to every
website I visit
2
Browser type
don’t know
everythingIp address
3
4
51X
Don’t know
An online ad company
2
google1X
Behavioral economics“There are areas of life in which people seem to
display less than perfect rationality” (Loewenstein et al, 2008):
Personal Finances Privacy online and on mobile devices
G. F. Loweinstein and E.C. Haisley. The foundations of Positive and Normative Economics, chapter 9. Oxford University Press, 2008.
Private Information You might Reveal Online
OKCupid Discussion Board
Behavioral economics and privacy decision making
Imperfect or asymmetrical information Biases
Default bias Hyperbolic discounting Bounded Rationality
Imperfect Information
Default Bias
• Organ Donation• Retirement (Thaler 2008)
• Facebook – 69% had changed default settings (Debatin 2009)
Bounded Rationality• Calculating carbon emissions
• Friends of friends
Hyperbolic Time Discounting
•Benefits now – costs later
• Donuts and smoking
•Clicking through warnings
•Installing apps on Droid
Bib• J. Tsai, P. Kelley, L. Cranor, and N. Sadeh, 2009. “Location‐Sharing Technologies:
Privacy Risks and Controls." Telecommunications Policy Research Conference (TPRC).
• A. Acquisti and R. Gross, 2009. “Predicting Social Security Numbers From Public Data.” Proceedings Of The National Academy Of Science, 106(27), 10975-10980.
• What Can Behavioral Economics Teach Us About Privacy? Alessandro Acquisti and Jens Grossklags
• Thaler and Sunstien Nudge Improving Decisions about Health Wealth and Happiness
