Computers can be hacked to use connected speakers as microphones
the verdict
SUPPORTED
the evidence backs this
confidence 88/100
Computers and smart devices can indeed be exploited through side-channel attacks that repurpose internal hardware or connected components, such as accelerometers and piezoelectric elements, to act as microphones and eavesdrop on speakers.
Evidence for · 4
Learning-based Practical Smartphone Eavesdropping with Built-in Accelerometer
2020 · cited by 118
Demonstrates an attack using a smartphone accelerometer to eavesdrop on the speaker within the same device.
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More for · 3
AccEar: Accelerometer Acoustic Eavesdropping with Unconstrained Vocabulary
2022 · cited by 55
Shows that accelerometer data can be used to reconstruct audio played on a smartphone speaker.
mmPhone: Acoustic Eavesdropping on Loudspeakers via mmWave-characterized Piezoelectric Effect
2022 · cited by 44
Presents an acoustic eavesdropping system that turns piezoelectric components into passive microphones to recover speech from loudspeakers.
Thru-the-wall Eavesdropping on Loudspeakers via RFID by Capturing Sub-mm Level Vibration
2021 · cited by 42
Explores capturing loudspeaker vibrations to perform eavesdropping and reconstruct audio using RFID technology.