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1. epista+i3[view] [source] 2024-11-27 20:36:17
>>xairy+(OP)
I can see why some people might be concerned about the camera, but I'm far more concerned by the microphone. There's far more sensitive and actionable information that can be gathered from me that way! I'm glad that macOS started putting a light in the menubar when the microphone is in use, but I'd prefer to have unhackable hardware for that instead.
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2. 3eb798+Ab[view] [source] 2024-11-27 21:33:08
>>epista+i3
I believe it is possible to turn a speaker into a microphone. Found a paper which claims to do just that[0]. So, there is no safety anywhere?

  SPEAKE(a)R: Turn Speakers to Microphones for Fun and Profit
  It is possible to manipulate the headphones (or earphones) connected to a computer, silently turning them into a pair of eavesdropping microphones - with software alone. The same is also true for some types of loudspeakers. This paper focuses on this threat in a cyber-security context. We present SPEAKE(a)R, a software that can covertly turn the headphones connected to a PC into a microphone. We present technical background and explain why most of PCs and laptops are susceptible to this type of attack. We examine an attack scenario in which malware can use a computer as an eavesdropping device, even when a microphone is not present, muted, taped, or turned off. We measure the signal quality and the effective distance, and survey the defensive countermeasures. 
[0] https://arxiv.org/abs/1611.07350
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3. orbita+Ad[view] [source] 2024-11-27 21:45:59
>>3eb798+Ab
This only works on audio chipsets that allow pin retasking. Which is, coincidentally, all Realtek chipsets that are present in every PC...

(you also need to plug the speaker directly, mostly limiting it to headphones and laptop speakers)

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