Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Microsoft Teams will soon block screen capture during meetings

bleepingcomputer.com

Post reply on HN
Print view View original

111–120 of 359 posts

Re: Microsoft Teams will soon block screen capture during meetings

#111

Post by jasonlotito »

hedora wrote: post #93
Aurornis wrote: post #81

Earlier quoted context omitted.

> All these are due to laws and regulations that are there to protect the big companies and don’t take into consideration users This feature is not due to laws and regulations. The user in this case is the presenter who clicks the button to enable screenshot protection on their meeting. This is Microsoft trying to deliver a feature their users want , not laws and regulations making them do something their users don’t…

Some people might want it, but it doesn’t actually work. It’s probably also required by some compliance theater in some places.

> Some people might want it, but it doesn’t actually work

Why do you think they can't prevent on-device screenshots/screen recording can't be prevented when you control the entire stack?

Re: Microsoft Teams will soon block screen capture during meetings

#112

Post by brookst »

jasonlotito wrote: post #111
hedora wrote: post #93

Earlier quoted context omitted.

Some people might want it, but it doesn’t actually work. It’s probably also required by some compliance theater in some places.

> Some people might want it, but it doesn’t actually work Why do you think they can't prevent on-device screenshots/screen recording can't be prevented when you control the entire stack?

Would it work on Mac?

Re: Microsoft Teams will soon block screen capture during meetings

#113

Post by jasonlotito »

NKosmatos wrote: post #94
Aurornis wrote: post #81

Earlier quoted context omitted.

> All these are due to laws and regulations that are there to protect the big companies and don’t take into consideration users This feature is not due to laws and regulations. The user in this case is the presenter who clicks the button to enable screenshot protection on their meeting. This is Microsoft trying to deliver a feature their users want , not laws and regulations making them do something their users don’t…

There isn’t a single user (presenter) that would ask something like this. Only a presenter that has to follow some strict “high security” procedures would enable something like this. A politician, for example, will have an excuse in case something leaks. The fact that with a simple mobile having a camera you can copy whatever is being presented (or with slightly more technical ways) is irrelevant for laws and procedu…

> The fact that with a simple mobile having a camera you can copy whatever is being presented (or with slightly more technical ways) is irrelevant for laws and procedures ;-)

That you think the only attack vector here is a 3rd party device means you haven't really considered everything. Consider screenshots that might happen for many reasons, including malicious software, or even normal software someone might be using, and accidental exposure.

Re: Microsoft Teams will soon block screen capture during meetings

#114

Post by jasonlotito »

brookst wrote: post #112
jasonlotito wrote: post #111

Earlier quoted context omitted.

> Some people might want it, but it doesn’t actually work Why do you think they can't prevent on-device screenshots/screen recording can't be prevented when you control the entire stack?

Would it work on Mac?

Yes.

Edit: But yeah, nothing to say why it can't work. So, yeah.

Re: Microsoft Teams will soon block screen capture during meetings

#115

Post by jchw »

This is of course, incredibly stupid, due to the analog hole (which to be fair, is mentioned in passing by the article, but doesn't seem to be addressed at all by MS*.) Having this feature just guarantees it will get used, and possibly made into a standard compliance theater feature, hurting legitimate users for very little practical gain.

The only real practical gain is that it might prevent malware from being able to capture visible data, but what's funny about that is one of the desktop systems that can prevent unwanted screen capture by design (Wayland) also intentionally doesn't have any support for DRM/HDCP features, so it will likely be stuck on audio-only mode. High five, Microsoft!

* I wanted to go to the source directly to check if maybe they just left it out, but the link that they currently have seems to be non-sense. It seems to point to something about "Co-pilot" audio transcription. In Romanian, for whatever reason.

https://www.microsoft.com/ro-ro/microsoft-365/roadmap?id=490...

Re: Microsoft Teams will soon block screen capture during meetings

#116

Post by c-hendricks »

jasonlotito wrote: post #111
hedora wrote: post #93

Earlier quoted context omitted.

Some people might want it, but it doesn’t actually work. It’s probably also required by some compliance theater in some places.

> Some people might want it, but it doesn’t actually work Why do you think they can't prevent on-device screenshots/screen recording can't be prevented when you control the entire stack?

It's kind of like locks isn't it? It'll deter honest folks, but will it prevent screen capture when Teams is running in a VM? What about over VNC?

Re: Microsoft Teams will soon block screen capture during meetings

#117

Post by adolph »

hedora wrote: post #93
Aurornis wrote: post #81

Earlier quoted context omitted.

> All these are due to laws and regulations that are there to protect the big companies and don’t take into consideration users This feature is not due to laws and regulations. The user in this case is the presenter who clicks the button to enable screenshot protection on their meeting. This is Microsoft trying to deliver a feature their users want , not laws and regulations making them do something their users don’t…

Some people might want it, but it doesn’t actually work. It’s probably also required by some compliance theater in some places.

Yeah, some enterprise admin will click it and make it clickable for others. It’s a classic ratchet of enshittification until things reach a magic intolerability point and folks evacuate to other systems leading those to get rolled into one of the borgs: lather, rinse, repeat.

Re: Microsoft Teams will soon block screen capture during meetings

#118

Post by orangecat »

immibis wrote: post #87
rolph wrote: post #47

Earlier quoted context omitted.

the Analogue hole Will never Die

They tried to. They tried to make cameras illegal. Remember that?

Yup: https://en.wikipedia.org/wiki/Consumer_Broadband_and_Digital.... Scarily it would be more technically feasible to implement this today than it was then.

Re: Microsoft Teams will soon block screen capture during meetings

#119

Post by jasonlotito »

c-hendricks wrote: post #116
jasonlotito wrote: post #111

Earlier quoted context omitted.

> Some people might want it, but it doesn’t actually work Why do you think they can't prevent on-device screenshots/screen recording can't be prevented when you control the entire stack?

It's kind of like locks isn't it? It'll deter honest folks, but will it prevent screen capture when Teams is running in a VM? What about over VNC?

What about a camera?

These aren't the use cases that really matters. What matters is the common case, and it's not about deterring honest folks. Honest folks aren't recording.

This is really a lesson in security blind spots. The number of people that are trying to "get around this" assuming that's the issue.

Edit: I'll make it simple. It will work because honest people aren't trying to get around it. But, they could still expose data they shouldn't. This helps prevent that. Again, a camera is enough to prove it doesn't need to be 100% perfect (and probably more honest considering screenshots can be faked).

So, instead of trying to think of how you can exploit, think of all the ways this private information can get out when it shouldn't and the people on the call aren't trying to release it. Work through that, and see where you get.

Re: Microsoft Teams will soon block screen capture during meetings

#120

Post by adolph »

kccqzy wrote: post #107
asadotzler wrote: post #82

Earlier quoted context omitted.

Browser DRM like WideVine and PlayReady do the enforcing

Really? I didn't know it was possible to use DRM like WideVine for peer-to-peer video.

Teams is going through a central server and bouncing it out to participants, right? Not p2p.
Post reply on HN