Research Interest

My broader research interest lies in ensuring the security of emerging digital systems while accounting for usability and accessibility to support inclusive and equitable use. With this overarching goal, I began by studying authentication mechanisms, which serve as a critical component of system security and user protection. In particular, I examine authentication from the perspective of diverse user groups, including blind and visually impaired individuals, an underexplored area where accessibility limitations can directly translate into concrete security risks. I then extend this line of inquiry to other emerging digital systems, conducting user-centered and HCI security research that includes accessibility-triggered security problems. By systematically identifying and analyzing these challenges, my work aims to inform the design of digital systems that are both secure and inclusive.

In addition, I investigate the security of emerging technologies such as augmented and virtual reality (AR/VR). My work in this area focuses on uncovering new attack surfaces introduced by immersive platforms, including the leakage of sensitive user information through subtle motion sensor signals. I further study how such leakage can threaten user privacy and identity and develop secure and usable authentication mechanisms tailored to immersive environments. This line of research includes a distinguished paper award–winning contribution at ACM CCS 2025.

Across these efforts, my research seeks to bridge the gap between usability, accessibility, and security, with the goal of ensuring equitable access while mitigating evolving threats in next-generation digital systems.