Much work has been conducted to investigate the obstacles that keep users from using mitigations against security and privacy threats on smartphones. By contrast, we conducted in-depth interviews (n = 19) to explore users' motivations for voluntarily applying security and privacy actions on smartphones. Our work focuses on analyzing intrinsic motivation in terms of psychological need fulfillment. Our findings provide first insights on the salience of basic psychological needs in the context of smartphone security and privacy. They illustrate how security and privacy actions on smartphones are motivated by a variety of psychological needs, only one of them being the need for Security. Moreover, the results illustrate how psychological needs can help to explain the adoption of security and privacy technologies and the interaction with those technologies. We further discuss how the design of security and privacy technologies could be guided by the gained knowledge.
We report a survey study (N=140), assessing various privacy violations that mobile users have experienced, in particular those related with locational privacy. We evaluate the impact of such violations on perceived risks and benefits on usage of location-based applications. Most participants report having experienced some kind of privacy violations; in particular, 75% report having experienced inappropriate data collection, and 74% report having received bothersome location-based adverts. Our results suggest that having experienced privacy violations, in particular location-based adverts, might lead to feeling that risks from using location-based applications outweigh the benefits, and have a direct influence on the usage frequency of location-based applications. Our results highlight that locational adverts are not seen as beneficial by the users and may create discomfort, even hindering the adoption of LBS. Nevertheless, the overall benefits of LBS seem to outweigh the risks.
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