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Data minimization is a legal and privacy-by-design principle mandating that online services collect only data that is necessary for pre-specified purposes. While the principle has thus far mostly been interpreted from a system-centered perspective, there ...

Social media effectively connects businesses with diverse audiences. However, research related to targeted advertising and social media is rarely done beyond Western contexts. Through an online survey with 412 participants in the United States and three ...

Blind individuals commonly share photos in everyday life. Despite substantial interest from the blind community in being able to independently obfuscate private information in photos, existing tools are designed without their inputs. In this study, we ...

Cryptocurrency wallets come in various forms, each with unique usability and security features. Through interviews with 24 users, we explore reasons for selecting wallets in different contexts. Participants opt for smart contract wallets to simplify key ...

Key management has long remained a difficult unsolved problem in the field of usable security. While password-based key derivation functions (PBKDFs) are widely used to solve this problem in centralized applications, their low entropy and lack of a ...

The advent of Web3 technologies promises unprecedented levels of user control and autonomy. However, this decentralization shifts the burden of security onto the users, making it crucial to understand their security behaviors and perceptions. To address ...

Software security practices are critical in minimizing vulnerabilities and protecting unauthorized access to the code and the system. However, software security practices outside Western countries need to be better understood. This need for understanding ...

Smart contracts are self-executing programs that run on blockchains (e.g., Ethereum). While security is a key concern for smart contracts, it is unclear how smart contract developers approach security. To help fill this research gap, we conducted a mixed-...

Crypto wallets are a key touch-point for cryptocurrency use. People use crypto wallets to make transactions, manage crypto assets, and interact with decentralized apps (dApps). However, as is often the case with emergent technologies, little attention has ...

Visual cues play a key role in how users assess the privacy/ security of a website, but often remain inaccessible to people with visual impairments (PVIs), disproportionately exposing them to privacy and security risks. We employed an iterative, user-...

This paper explores the lived experience of using ChatGPT in HCI research through a month-long trioethnography. Our approach combines the expertise of three HCI researchers with diverse research interests to reflect on our daily experience of living and ...

While people’s perceptions of targeted ads have been studied extensively from a Western perspective (e.g., North America, Europe), we know little about users’ perceptions in the South Asian region. We interviewed 40 participants from two South Asian ...

We present the design and creation of a disability-first dataset, “BIV-Priv,” which contains 728 images and 728 videos of 14 private categories captured by 26 blind participants to support downstream development of artificial intelligence (AI) models. ...

A large number of mobile phone applications have been built and deployed to combat COVID-19, offering various services to users, including virus information, contact tracing, and symptom monitoring among others. At the same time, the privacy and ...

Mobile apps have transformed many aspects of clinical practice and are becoming a commonplace in healthcare settings. The recent COVID-19 pandemic has provided the opportunity for such apps to play an important role in reducing the spread of the virus. ...

The adoption of cloud computing has created tremendous prospects and cost savings for a variety of organizations. Although increasing resources and effort have been devoted to fighting cyber-threats in cloud environments, cloud computing continues ...

Mobile apps are being utilized in different regions around the world for contract tracing during this COVID-19 pandemic and many of these apps require personal information to be shared. The COVID-19 crisis has demonstrated how critical it is that we ...

Alcoholism involves psychological and biological components where multiple risk factors come into play. Assessment of the psychiatric emergency is a challenging issue for clinicians working with alcohol-dependent patients. Identifying alcoholics ...

Smartphones are becoming our most trusted computing devices for storing and dealing with highly sensitive information which makes smartphones an essential platform to take under control utilizing privacy-preserving applications (apps). There ...

An effective application framework design for e-governance is definitely a challenging task. The majority of the prior research has focused on designing e-governance architecture where people identity verification takes long time using manual ...