关键词：智能手机；用户调查；智能手机操作系统；智能手机安全和隐私
摘 要：Smartphone operating systems expose a wide range of functions and user data to third-party applications. However,past research on mobile privacy has focused exclusively onthe risks pertaining to sharing location. To expand the scope of smartphone security and privacy research, we surveyed3,115 smartphone users about 99 risks associated with 54smartphone privileges. We asked participants to rate howupset they would be if a given risk occurred. Based on thisdata, we ranked risks by the number of users who stated thatthey would be very upset" if the risks occurred. We thenperformed an open ended survey of 41 smartphone users, which let respondents discuss the risks in their own words.The follow-up study con rmed that people nd the lowestranked risks merely annoying but might seek legal or nancial retribution for the highest-ranked risks. Our rankingcould be used to guide the severity or selection of warningson smartphone platforms. Notably, our results show that location is not a high-ranked user concern.