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LERSSE Paper Receives a Honourable Mention at CHI 2021

LERSSE paper “The U in Crypto Stands for Usable: An Empirical Study of User Experience with Mobile Cryptocurrency Wallets
has been accepted at CHI 2021.

The abstract of the paper reads: In a corpus of 45,821 app reviews of the top five mobile cryptocurrency wallets, we identified and qualitatively
analyzed 6,859 reviews pertaining to the user experience (UX) with those wallets. Our analysis suggests that both new and experienced users
struggle with general and domain-specific UX issues that, aside from frustration and disengagement, might lead to dangerous errors and
irreversible monetary losses. We reveal shortcomings of current wallet UX as well as users’ misconceptions, some of which can be traced back
to a reliance on their understanding of conventional payment systems. For example, some users believed that transactions were free, reversible,
and could be canceled anytime, which is not the case in reality. Correspondingly, these beliefs often resulted in unmet expectations.
Based on our findings, we provide recommendations on how to design cryptocurrency wallets that both alleviate the identified issues and
counteract some of the misconceptions in order to better support newcomers.

Paper available under: http://lersse-dl.ece.ubc.ca/record/338?ln=en

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LERSSE Paper Gets Accepted at CHI 2021

 

LERSSE paper “Bits Under the Mattress: Understanding Different Risk Perceptions and Security Behaviors of Crypto-Asset Users”  has been accepted at CHI 2021.

The abstract of the paper reads: Crypto-assets are unique in tying financial wealth to the secrecy of private keys. Prior empirical work has attempted to study end-user security from both technical and organizational perspectives. However, the link between individual’s risk perceptions and security behavior was often obscured by the heterogeneity of the subjects in small samples. This paper contributes quantitative results from a survey of 395 crypto-asset users recruited by a novel combination of deep and broad sampling. The analysis accounts for heterogeneity with a new typology that partitions the sample in three robust clusters – cypherpunks, hodlers, and rookies, – using five psychometric constructs. The constructs originate from established behavioral theories with items purposefully adapted to the domain. We demonstrate the utility of this typology in better understanding users’ characteristics and security behaviors. These insights inform the design of crypto-asset solutions, guide risk communication, and suggest recommendations for future digital currencies.

Paper available under: http://lersse-dl.ece.ubc.ca/record/337?ln=en

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LERSSE Paper Accepted at CHI 2021: Implicit Authentication

LERSSE paper “On Smartphone Users’ Difficulty with Understanding Implicit Authentication”  has been accepted at CHI 2021.

 

The abstract of the paper reads: Implicit authentication (IA) has recently become a popular approach for providing physical security on smartphones. It relies on behavioral traits (e.g., gait patterns) for user identification, instead of biometric data or knowledge of a PIN. However, it is not yet known whether users can understand the semantics of this technology well enough to use it properly. We bridge this knowledge gap by evaluating how Android’s Smart Lock (SL), which is the first widely deployed IA solution on smartphones, is understood by its users. We conducted a qualitative user study (N=26) and an online survey (N=331). The results suggest that users often have difficulty understanding SL semantics, leaving them unable to judge when their phone would be (un)locked. We found that various aspects of SL, such as its capabilities and its authentication factors, are confusing for the users. We also found that depth of smartphone adoption is a significant antecedent of SL comprehension.

 

Get the paper: http://lersse-dl.ece.ubc.ca/record/339?ln=en

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LERSSE Paper Gets Accepted at MobileHCI 2020

LERSSE paper titled “Is Implicit Authentication on Smartphones Really Popular? On Android Users’ Perception of Smart Lock for Android” has been accepted for publication at the Twenty-Second International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI 2020). The paper will be presented at the virtual conference holding later in the year.

 

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LERSSE Paper Gets Accepted at SOUPS 2020

LERSSE paper titled “Towards Understanding Privacy and Trust in Online Reporting of Sexual Assault” has been accepted for publication at the Sixteenth Symposium on Usable Privacy and Security (SOUPS) 2020. The paper will be presented at the conference holding later in the year.