Users can be heard through this flaw in Android phones.

 Texas: A team of researchers has discovered a flaw in Android devices that can be exploited by hackers to eavesdrop on users' phone calls.

A malware called 'AirSpy', developed by experts from five American universities, can be used to eavesdrop on mobile devices by capturing motion sensor data readings generated by echoes from ear-mounted speakers. Is.

When the researchers tested smartphone loudspeakers, the in-ear speakers were found to be quite weak in generating the desired amount of vibration for which needles.

However, the stereo speakers used on modern smartphones are better than the smartphones made a few years ago. These speakers have better sound quality and produce powerful waves.

Just as advanced devices use more sensitive motion sensors and gyroscopes that can record even the subtlest echoes coming from speakers.

The experiment showed that the 2016 OnePlus 3T's earphones barely showed any data on the spectrogram, while the 2019 OnePlus 7T collected a significantly larger amount of data.

Among the universities that developed the AirSpy malware were Texas A&M University, New Jersey Institute of Technology, Temple University, University of Dayton and Rutgers University.