Live data from Hacker News

You’re muted – or are you? Videoconferencing apps may listen when mic is off

news.wisc.edu

241–250 of 353 posts

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#241
What's not clear to me is whether other participants of the meeting are aware of my sound while my mic is "muted".

I'm far less concerned about the videoconference system hearing me than my other meeting participants. This morning during a boring company-wide meeting I accidentally fell asleep (it was an early morning meeting and I was still in bed!)

All that said, it should really be a right of consumers that audio and video capture devices have a physical on/off switch.

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#242

Earlier quoted context omitted.

On Linux at least, Teams continue to grab the microphone even after the meeting has ended. You can see this by looking at apps registered for "recording". I'm not sure how that can be justified. Besides privacy, the issue is that this prevents the sound card from going to sleep, which may be an issue on laptops. But I guess this is insignificant compared to the rest of Teams' power consumption.

Teams is a real clustefuck, I do not believe it is a design decision but rather just poorly written code.

It also doesn't happen on MacOS where you can see the indicator dot go away after a call. Teams just has a lot of bugs.

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#243
I actually like how Zoom can warn you that you're muted if you start talking, happens to me all the time. And that obviously wouldn't be possible without keeping the access to the mic. So the light being on is OK for me. However continuing to stream the sound to the server is a huge problem, if it's really what's happening - but we can't confirm that without knowing which app is in question...

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#246

> “With a camera, you can turn it off or even put your hand over it, and no matter what you do, no one can see you,” says Fawaz. “I don’t think that exists for microphones.” Maybe it doesn't exist on whatever sleek glassy slabs they're working with, but the old Thinkpad, Elitebook, and Precision workstation laptops I have around me at the moment all have dedicated microphone mute buttons (the Precision has a Fn key c…

I'm going to guess the hardware switches and key combos went away because they are too confusing for users. I remember constant complaints of "Internet doesn't work" because the wifi hardware switch was turned off. And as the saying goes, if the majority of users are using it wrong, it was designed wrong.

I think Apple picked the right middle ground by making access to the mic and camera a permissions request as well as showing a clear indicator to the user whenever these are active. Steve jobs said the best UI is to ask the user for their data when you want it and keep making them aware of this access every time you use it.

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#247
I always get a good chuckle out of burping and farting while on "mute" because I have seen the traffic.

No expectations of privacy should be the norm when you have mics and cameras. In fact, cameras are easy to handle. Just cover it with something and you're done. Nice continue to listen even if you block them

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#248

It's always been risky to trust the mute button, even before zoom etc. The rules have been the same for at least 30 years. Never send an email or other type of text message you don't want the whole world to see. Never say anything on a conference call, even when muted, you wouldn't say when not muted. Ethically any audio chat software shouldn't transmit any audio it receives when muted. The "hey, you are muted" notif…

It's been mentioned a few times in this thread, but it looks like they all have a legitimate reason for this which is making sure the unmute button is instant. Because having the first few words of your talking get through is more important than a theoretical privacy issue to most users.

Re: You’re muted – or are you? Videoconferencing apps may listen when mic is off

#249
post #13

Isn't it common knowledge by now that cameras and microphones are still "on" even if you disable it at the software level? Zuckerburg has been taping webcam/microphones/etc for a while now. Though being the CEO of a major corporation requires you take privacy more seriously. https://www.macworld.com/article/228326/mic-drop-how-to-keep...

> Isn't it common knowledge by now that cameras and microphones are still "on"

No. Can you provide evidence.

Because that would imply that applications are routinely bypassing OS security controls. Which at least on a Mac requires a sophisticated compromise i.e. the camera light is directly linked to the camera itself via an independent subsystem.

Post reply on HN