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Popular Samsung, LG Android Phones Open to ‘Spearphone’ Eavesdropping
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Quote:A Spearphone attacker can use the accelerometer in LG and Samsung phones to remotely eavesdrop on any audio that’s played on speakerphone, including calls, music and voice assistant responses.
 
A new way to eavesdrop on people’s mobile phone calls has come to light in the form of Spearphone – an attack that makes use of Android devices’ on-board accelerometers (motion sensors) to infer speech from the devices’ speakers.
 
An acronym for “Speech privacy exploit via accelerometer-sensed reverberations from smartphone loudspeakers,” Spearphone was pioneered by an academic team from the University of Alabama at Birmingham and Rutgers University.

They discovered that essentially, any audio content that comes through the speakers when used in speakerphone mode can be picked up by certain accelerometers in the form of sound-wave reverberations. And because accelerometers are always on and don’t require permissions to provide their data to apps, a rogue app or malicious website can simply listen to the reverberations in real time, recording them or livestreaming them back to an adversary, who can analyze and infer private data from them.

SOURCE: https://threatpost.com/samsung-lg-androi...ng/146625/
[-] The following 3 users say Thank You to silversurfer for this post:
  • harlan4096, ismail, Mohammad.Poorya
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