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Thursday, September 21, 2023

Muting Your Mic Doesn’t Stop Big Tech From Recording Your Audio , Press Release

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When you utilize a video teleconferencing app, your audio data is sent to the firm that hosts the service. That includes all of your audio data, according to recent research. Whether you’re broadcasting or muted, this includes speech and background sounds.


Researchers at the University of Wisconsin-Madison looked at “several popular apps” to see how much data video conferencing apps acquire when users utilize the mute button in the software.

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Press release, their findings were substantial:

They used runtime binary analysis tools to trace raw audio in popular video conferencing applications as the audio traveled from the app to the computer audio driver and then to the network while the app was muted.

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They found that all of the apps they tested occasionally gather raw audio data while mute is activated, with one popular app gathering information and delivering data to its server at the same rate regardless of whether the microphone is muted or not.

We’re unable to confirm the precise apps examined because this research has yet to be released. As a result, we won’t be able to name and disgrace them for the time being.

The efficacy of this research, on the other hand, isn’t in question because it’s been accepted to the 2022 Privacy Enhancing Technologies Symposium. We’ll have to wait and see who gets mentioned in the paper when it comes out in June.

That does not exclude us from drawing some conclusions. This data, according to the researchers, might be utilized to derive useful information. And, with a little machine learning, the data can construct a remarkably detailed image of a user’s world — even if the app’s microphone is turned off.

The research team was able to discover which exact audio was being sent during testing and, using that information, extrapolate what inferences big tech could make.

Of course, AI is used by big tech to parse everything. As a result, the researchers developed their own algorithms to analyze the data. What they discovered astounded them.

According to the abstract of the unpublished paper:

We develop a proof-of-concept background activity classifier and demonstrate the feasibility of inferring continued background activity during a meeting — cooking, cleaning, typing, and so on using network traffic intercepted en route to the telemetry server. When a user is muted, we were able to detect six frequent background activities with 81.9 percent macro accuracy using intercepted outgoing telemetry packets.

Kassem Fawaz, the study’s lead author, stated in a university press release:

With a camera, you may turn it off or even cover it with your hand, and no one will be able to see you. For microphones, I don’t believe that exists.

People, don’t forget to double-mute. You’ll undoubtedly forget to double-unmute now and then, but the trade-off is that Google, Microsoft, and everyone else won’t be able to train their algorithms on your private sounds.

for more details and updates visit The Market Activity.


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