Addressing the Address Books' (Interdependent) Privacy Issues
summary
Two large surveys (N=463 and N=459) quantify real interdependent privacy in digital address books: over 90% of users grant contact access to third‑party apps and one‑third had 10+ third‑party apps; median proportion of contacts with birthdays is 3.6%, which implies an 86% chance a person’s birthday appears if they are in 50 users’ books. Only ~20% grant API access in the study and ~10% provide usable data; willingness nudges slightly with up to $5, while many request $12–$35. About 40–48% support data‑subject rights to view, correct or delete.
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chapters (15)
- 0:00Interdependent privacy in address books
- 1:16Digital address books' privacy blind spots
- 2:20Service providers' contact data risks
- 3:49DAB ecosystem and data flow
- 4:50Research questions and study design
- 5:31Study one: contact management practices
- 7:44Third-party app access to contacts
- 9:14Contact data sensitivity perceptions
- 10:41Privacy-preserving dashboard features
- 11:02Study two: data sharing insights
- 13:15Contact data completeness risks
- 14:21Willingness to share contacts for pay
- 15:48Compensation and trust in Google
- 17:10Reflections and future directions
- 18:38Summary and closing
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