Introduction. Privacy vs. need for credentials Privacy vs. desire for free expression Privacy vs. safety / security 1-2

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Randell Montgomery
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1 Pi Privacy

2 Introduction The World We Live In: Information collection, exchange, combination, and distribution easier than ever More information access less privacy Trade-offs Privacy vs. need for credentials Privacy vs. desire for free expression Privacy vs. safety / security 1-2

3 Wiley Miller 1-3

4 Perspectives on Privacy 1-4

5 Perspectives on Digital Privacy Legal What rights? Privacy Social What is it? Do we care? Technical How is captured? When is it disclosed? Policy How is it handled? Slide 4-5

6 Defining Privacy Privacy related to notion of access Access Physical proximity to a person Knowledge about a person Edmund Byrne: Privacy is a zone of inaccessibility Edward Bloustein: Privacy violations are an affront to human dignity Violate someone s privacy when you treat them as means to an end. Too much individual privacy can harm society e.g., private club, country club. Where to draw the line? 1-6

7 Harms of Privacy Cover for illegal or immoral activities Burden on the nuclear family Past: Share with community Now: Nuclear family does it all. Hidden dysfunctional families Due to cultural respect of privacy. Ignored people on society s fringes 1-7

8 Benefits of Privacy Individual growth Individual responsibility Freedom to be yourself e.g., child rearing, blow off steam. Intellectual and spiritual growth i.e., focus without interruption Development of loving, trusting, caring, intimate relationships 1-8

9 Is There a Natural Right to Privacy? Morton Levine: Privacy rights stem from property rights: a man s home is his castle Coercive Acts before American Revolution led to 3 rd Amendment to U.S. Constitution Samuel Warren and Louis Brandeis: People have the right to be let alone -> Social, political, economic changes calls for new legal rights. Laws for libel, slander not sufficient for addressing malicious but true information. Judith Jarvis Thomson: Privacy rights overlap other rights -> Cluster of rights associated with privacy obviates the need for privacy rights. Stanley Benn and Jeffrey Reiman: Privacy is a prudential right -> rights beneficial to society 1-9

10 Do People Have the Right to Be Left Alone? Chris Uncle / Film Magic / Getty Images 1-10

11 National Do Not Call Registry FTC responded to public opinion Created Do Not Call Registry in 2003 More than 50 million phone numbers registered before it even took affect Example of how privacy is treated as a prudential right Benefit of shielding people from telemarketers t judged to be greater than harm caused by limiting telephone advertising 1-11

12 Privacy and Trust Modern life more private Challenge: living among strangers Remedy: establishing reputations Ordeal, such as lie detector test or drug test Credential, such as driver s license, key, ID card, college degree Establishing reputation is done at the cost of reducing privacy 1-12

13 Disclosing Information Public record: information for public access Public information: information revealed to an organization that has right to share it Personal information: undisclosed information Types of disclosures Voluntary Involuntary Statutory 1-13

14 Your Digital Privacy Footprint Electronic Paper Trail -> Data left behind via Web, mobile devices, Internet, TV, etc. Do you care? How could it impact you? -> Digital Privacy Tolerance Scale Reputation Lifestyle Quality of Life Pocketbook Slide 4-14

15 Disclosures Make Personal Information Public Personal Information Voluntary, Involuntary, and Statutory Disclosures Public Information Public Records 1-15

16 Public Information 1-16

17 Ways Information Becomes Public Rewards or loyalty y programs Body scanners Digital video recorders Automobile black boxes Enhanced 911 service RFIDs Implanted chips Cookies Spyware Find my Face 1-17

18 Body Scanner Takes Measurements AP/Wideworld Photos 1-18

19 RFID Tags Speed Inventory Process Courtesy of Tibbett & Britten 1-19

20 Case in Point: Facebook Risk and Riches in User Data for Facebook 1-20

21 Privacy., Recap Philosophical Considerations Hard to define. Harms/Benefits Natural Right vs. Prudential Right Case: Secret Monitoring i Public Information 1-21

0x1A Great Papers in Computer Security

CS 380S 0x1A Great Papers in Computer Security Vitaly Shmatikov http://www.cs.utexas.edu/~shmat/courses/cs380s/ H. Nissenbaum Privacy as Contextual Integrity (Washington Law Review 2004) Common-Law Right