文章基本信息

标题：A Privacy-Focused Systematic Analysis of Online Status Indicators
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作者：Camille Cobb ; Lucy Simko ; Tadayoshi Kohno 等
期刊名称：Proceedings on Privacy Enhancing Technologies
电子版ISSN：2299-0984
出版年度：2020
卷号：2020
期号：3
页码：384-403
DOI：10.2478/popets-2020-0057
语种：English
出版社：Sciendo
摘要：Online status indicators (or OSIs,i.e.,interface elements that communicate whether a user is online) can leak potentially sensitive information about users. In this work,we analyze 184 mobile applications to systematically characterize the existing design space of OSIs. We identified 40 apps with OSIs across a variety of genres and conducted a design review of the OSIs in each,examining both Android and iOS versions of these apps. We found that OSI design decisions clustered into four major categories,namely: appearance, audience,settings,and fidelity to actual user behavior. Less than half of these apps allow users change the default settings for OSIs. Informed by our findings,we discuss: 1) how these design choices support adversarial behavior,2) design guidelines for creating consistent, privacy-conscious OSIs,and 3) a set of novel design concepts for building future tools to augment users’ ability to control and understand the presence information they broadcast. By connecting the common design patterns we document to prior work on privacy in social technologies,we contribute an empirical understanding of the systematic ways in which OSIs can make users more or less vulnerable to unwanted information disclosure.
关键词：Online Status Indicators;Usability;Mobile Ecosystem;Design;Information Leakage;Privacy