Researchers have demonstrated that microphones and speakers built into laptops can be used to covertly transmit and receive data through inaudible audio signals.
![](https://www.tahawultech.com/wp-content/uploads/2013/12/download-10-1-840x440.jpg)
Researchers have demonstrated that microphones and speakers built into laptops can be used to covertly transmit and receive data through inaudible audio signals.
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