This paper presents Hollow-Pass, a developed solution that strengthens the security of pattern passwords against shoulder-surfing attacks. It is a novel approach to graphical password (GP) schemes that utilize a dual-view technology known as the global precedence effect, which eliminates the need for external devices and makes the grid and pattern invisible to potential shoulder surfers. The usability of Hollow-Pass was evaluated through an online as well as an offline user test. We recruited 30 participants from varied backgrounds, ranging in age from 20 to 80 years, for the online user test. An offline small-scale sampling test was conducted among 19 undergraduates from the Universiteit of Twente. The developed solution successfully demonstrated its ability to effectively resist shoulder-surfing attacks for simple patterns at various viewing angles (front, left-front, and right-front) and different distances (1.0 m, 1.5 m, and 2.0 m).

The career discussion for the visually impaired has long been contentious in China, particularly as social technology advances. The interview result of Guangdong’s first blind mock streamer competition hosted by the Guangdong Association of the Blinds showed that exploring the possibility of live streaming for the visually impaired and enhancing the user experience and efficiency of the current live stream accessibility design is necessary. This study applied field study, roleplay action, and case studies as preliminary research to explore and reprioritize the challenges of streaming operations and experiences for visually impaired streamers. Finally, A-Live an all-in-one stream system with an auto-follow wind camera and accessibility UI design on TikTok was designed to allow the visually impaired complete live streaming independently.

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