Privacy and Security: Thinking About and Analyzing Privacy

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Privacy and Security Thinking About and
Analyzing Privacy
privacy and security
thinking about and analyzing privacy
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Research Topics in Ubiquitous Computing
Ben Elgart
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Readings
analyzing privacy
Readings Unpacking Privacy for a Networked
World Palen, Dourish Prototyping and
Sampling Experience to Evaluate Ubiquitous
Computing Privacy in the Real World Iachello,
Truong, Abowd, Hayes, Stevens
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Research Topics in Ubiquitous Computing
Ben Elgart
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Overview model of privacy
overview

• Palen Dourish present model for privacy
• Based on theory by social psychologist Irwin
  Altman
• Concept of privacy as dynamic, dialectic process
• Privacy management as a balancing act
• Multiple factors govern these social interactions
• Case studies involving technology illustrate
  model

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Research Topics in Ubiquitous Computing
Ben Elgart
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Introduction traditional approach
traditional approach in hci

• Design of pervasive and mobile systems
• Interactions with systems impact personal privacy
• New technologies introduce novel situations
• Relationship between privacy and technology
• Consider outside of static, rule-based systems
• Draw on earlier concepts to operationalize
  privacy for new situations involving information
  technology

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Research Topics in Ubiquitous Computing
Ben Elgart
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Privacy regulation theory
privacy regulation theory

• Altman sees privacy between individuals
• As a dialectic process, privacy regulation is
  conditioned by our own expectations and
  experiences, and by those of others with whom we
  interact.
• As a dynamic process, privacy is understood to
  be under continuous negotiation and management,
  with the boundary that distinguishes privacy and
  publicity refined according to circumstance.
• (Palen
  and Dourish, 2003)

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Research Topics in Ubiquitous Computing
Ben Elgart
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Privacy management
privacy management

• Privacy as a social negotiation
• Privacy management is a process of give and take
  between and among technical and social
  entitiesfrom individuals to groups to
  institutionsin ever-present and natural tension
  with the simultaneous need for publicity. Our
  central concern is with how this process is
  conducted in the presence of information
  technology.
• (Palen
  and Dourish, 2003)

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Research Topics in Ubiquitous Computing
Ben Elgart
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Limitations of Altmans model of privacy
altmans model limitations

• For managing personal access in interactions
• circumstance f(local physical environment,
  
• audience, social status, task
• or objective, motivation and
  intention, information technology)
• information technology ? spatial environment

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Research Topics in Ubiquitous Computing
Ben Elgart
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Privacy outside physicality
privacy outside physicality
When digital information flows outside
physical and temporal constraints, it changes the
way to regulate privacy.
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Research Topics in Ubiquitous Computing
Ben Elgart
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Boundaries manage privacy and are in tension
boundaries manage privacy

• Disclosure boundary
• Control of privacy and publicity in contexts
• Identity boundary
• Display of affiliation before an audience
• Temporality boundary
• Interpretations of and actions upon disclosed
  info from different points in time

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Research Topics in Ubiquitous Computing
Ben Elgart
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Neutral Technology Genres of Disclosure
neutrality of technology

• Genres of Disclosure shape privacy issues
• Social expectation and interpretation of action
• Systems support different understanding
• Family Intercom
• Shared Calendars
• Active Badges
• Cellphones
• IM

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Research Topics in Ubiquitous Computing
Ben Elgart
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Overview paratype
overview

• A particular ubicomp prototype was studied
• Test tool for evaluating privacy concerns

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Research Topics in Ubiquitous Computing
Ben Elgart
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New method paratype
inquiry method paratype

• Combines prototyping and sampling experience
• Solicits feedback on ubicomp technology
• Focuses on assessing real-life experience, not
  simulations nor testing the system
• Proposed for investigating social domains

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Research Topics in Ubiquitous Computing
Ben Elgart
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Evaluation challenge?
evaluation challenge?

• Personal Audio Loop (PAL)
• Memory aid to replace recent audio recordings
• Study participants respond with uses for device
• Also raised concerns about impact on privacy
• What types of understanding does the system
  support?
• What interactions?
• What users?
• What environments?

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Research Topics in Ubiquitous Computing
Ben Elgart
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Methods of study
methods of study

• Three proxies ages 27-31
• Used PAL in daily activities
• Paratype interaction in real-world simulation
• Proxie solicited opinions for specific
  conversation
• Half of respondents were in related work fields
• 3/4 identified importance with being informed of
  use
• On average, important that proxie ask permission
• Same for replaying audio to others
• Retention time not of concern

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Research Topics in Ubiquitous Computing
Ben Elgart
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Paratype, for privacy?
paratype, for privacy?

• Did the scenarios reflect circumstances that
  reveal issues for privacy management?

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Research Topics in Ubiquitous Computing
Ben Elgart
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Further consideration

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Research Topics in Ubiquitous Computing
Ben Elgart
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Questions, Comments
questions, comments
?
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Research Topics in Ubiquitous Computing
Ben Elgart