EarSpy Attack Can Use Motion Sensors Data to Pry on Android Devices

As smartphone manufacturers are improving the ear speakers in their devices, it can become easier for malicious actors to leverage a particular side-channel for eavesdropping on a targeted user’s conversations, according to a team of researchers from several universities in the United States.

The attack method, named EarSpy, is described in a paper published just before Christmas by researchers from Texas A&M University, Temple University, New Jersey Institute of Technology, Rutgers University, and the University of Dayton.

EarSpy relies on the phone’s ear speaker — the speaker at the top of the device that is used when the phone is held to the ear — and the device’s built-in accelerometer for capturing the tiny vibrations generated by the speaker. more