Hangcheng Cao

Evidence in Hand: Passive Vibration Response-based Continuous User Authentication

2021

Continuous user authentication is of great importance to maintain security for a mobile system and protect user's privacy throughout a login session. In this paper, we propose HandPass, a continuous user authentication system that employs …

Manipulating Voice Assistants Eavesdropping via Inherent Vulnerability Unveiling in Mobile Systems

2024 · IEEE Transactions on Mobile Computing

Numerous mobile devices are equipped with voice assistants to facilitate contactless user-device interaction. However, the widespread availability of voice assistants also raises security and privacy concerns, as they can be maliciously triggered to perform voice …