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Microsoft Teams will soon block screen capture during meetings

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Re: Microsoft Teams will soon block screen capture during meetings

#241
post #123

Earlier quoted context omitted.

But it’s literally the dumbest feature ever. There’s absolutely nothing preventing a user from pulling out their phone and taking a picture of any slide they want. Or having a camera recording the whole session out of view of their webcam. It is security theater at its peak.

There are two kinds of people in the world, those who completely misunderstand the value of friction, and those who depend on friction too heavily; GP clearly falls into the former group. This feature provides value because it increases friction. It won't stop really determined and motivated users from leaking, but it'll make leaks, especially accidental leaks / those due to hacks, a lot less common. The same applies…

A smartphone is amazingly low friction.

Re: Microsoft Teams will soon block screen capture during meetings

#242

Interesting how this will stop me from taking a picture with my mobile phone. The amount of effort people will go to, to make people's work more cumbersome. I am not screenshotting for espionage, I am screenshotting to accomplish my job.

It’s not literally every Teams meeting. It’s an option the presenter can turn on when needed. If you need the data from the presenter to do your job, presumably you’d contact them and ask.

> presumably you’d contact them and ask

Hey sorry to interrupt you but you blocked screenshots so please send me this frame. Also don't mind me I'll stop you again in 65 seconds.

Re: Microsoft Teams will soon block screen capture during meetings

#243
post #69

Most folks know this is easily defeated typically by viewing the content on another device (eg via casting it, remote desktop, phone mirroring, etc) or viewing it from within a VM, and then using the native screen capture functionality on the viewing device to record/screenshot whatever you need. That being said - guessing they are doing this for their enterprise customers mainly, where alot of those other options ar…

"Easily" is temporary. There's already zero way to capture protected pixels on iOS. Cabled mirroring, screen casting, airplay, they're all blocked. Messaging apps are capitalizing on this with "screenshot protection for temporary media". Netflix has been doing it for ages. Jailbreak? Detected and blocked as "insecure device"

Maybe you can do it on not-iOS, until your insecure setup will be blocked by the server. Cat and mouse until there's 3 mice in the whole world.

Re: Microsoft Teams will soon block screen capture during meetings

#244

The workaround that Microsoft is officially supports but isnt mentioning it.....is using microsoft recall.

What makes you think that userspace software can bypass userspace restrictions?

Any and every screen capture app will show a blank or a replacement screen for the restricted area.

Re: Microsoft Teams will soon block screen capture during meetings

#247

Earlier quoted context omitted.

This already exists in browsers. It's why you can't screenshot movies on youtube.com or netflix.com for example.

Part of that has to do with acceleration overlays, not DRM. You can often disable hardware acceleration and get your screenshot that way. Netflix is DRM though.

Both use L1 DRM*.

* At least for full resolution

Re: Microsoft Teams will soon block screen capture during meetings

#248

Earlier quoted context omitted.

I’ve been on calls where a presenter explicitly asks that people not screenshot slides shown in the meeting because they’re drafts that will be refined and published or circulated later on. Some companies probably have that as a blanket policy. I’m sure this isn’t universally followed. This feature would help make that less likely to happen accidentally or “accidentally.” It wouldn’t stop deliberate leaks but that’s…

We once had an intern who took screenshots of an internal presentation and posted them on the internet to brag about how cool his internship was. When we did his exit interview he admitted he just wasn’t thinking. He did it all in a couple minutes while in the meeting. Something like this would have stopped him in the process and made him remember that the content was sensitive. Don’t underestimate the diversity of t…

Seems like you will now have 1 less way to weed out an employee you don't want...

If someone was going to do something dumb like that I wouldn't want them to keep their job now instead simply because the software prevented them from doing something so dumb or dangerous.

Re: Microsoft Teams will soon block screen capture during meetings

#249
post #123

Earlier quoted context omitted.

But it’s literally the dumbest feature ever. There’s absolutely nothing preventing a user from pulling out their phone and taking a picture of any slide they want. Or having a camera recording the whole session out of view of their webcam. It is security theater at its peak.

It's not pure security theater, there are a few clear gains for those who care about such things: * Naive screencaps are much less traceable to the leaker than a naive photo is. Yes, someone can strip out EXIF data, but we've seen over and over again that they generally don't. And even without EXIF a naive framing on the photo is more likely to expose information about the location or identity of the person who took…

>A photo of a webinar is going to (barring serious postprocessing) look much less official

I don't mean to pile on but, you wouldn't use post processing, you would just take the information out of your screenshots and make a new slide deck if you wanted pass it off as official.

Re: Microsoft Teams will soon block screen capture during meetings

#250
post #123

Earlier quoted context omitted.

But it’s literally the dumbest feature ever. There’s absolutely nothing preventing a user from pulling out their phone and taking a picture of any slide they want. Or having a camera recording the whole session out of view of their webcam. It is security theater at its peak.

There are two kinds of people in the world, those who completely misunderstand the value of friction, and those who depend on friction too heavily; GP clearly falls into the former group. This feature provides value because it increases friction. It won't stop really determined and motivated users from leaking, but it'll make leaks, especially accidental leaks / those due to hacks, a lot less common. The same applies…

I think using the word friction is good. If you want your business to run smoothly you should not apply friction. In-fact, you should be looking for places where there is fiction and apply lube.

Either the information your are sharing is sensitive, or it is not. Applying friction to your colleges is just making their jobs more difficult.

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