Time to Rethink the Design of Qi Standard? Security and Privacy Vulnerability Analysis of Qi Wireless Charging


In this paper, we conducted the first thorough study to explore the potential security and privacy vulnerabilities of Qi wireless charging. We demonstrated that due to the open propagation characteristic of electromagnetic signals, the Qi communication channel can be easily hijacked by injecting malicious Qi messages through stealthy placement of an adversarial coil on the charger. Additionally, an adversary is capable of snooping Qi messages transmitted between the wireless charger and the charging device to further detect and identify the device’s activities while being charged.

In Annual Computer Security Applications Conference 2021