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 procedures ;-)
> There isn’t a single user (presenter) that would ask something like this.
Asking participants not to screen record or take screenshot was standard practice at every company I’ve worked at where we discussed anything like financials or sensitive business plans.
Every meeting I'm in where we talk numbers or strategy starts with someone saying, Please don't record or share this. The documents all say CONFIDENTIAL all over them. That's not true of all our presentations, just ones that we really wouldn't want our competition to see.
Many people still take screenshots of things they think are useful. Things still get shared though emails and occasionally posted on social media.
I have worked with various secure chamber VPN and VNC systems that make it quite difficult to record or screenshot. These are companies where their IP is worth billions of dollars and everyone wants a piece of it. It's difficult enough that it's not worth the effort to try and work around it. The rare time I really need something for debugging, I'll take a photo with my cameraphone, but it rarely comes to that.
Because it's that much harder, I record a lot less of it. Likewise for all the other engineers I work with. Friction won't stop it entirely, but it will make it far less frequent.
Pretty common where I have worked. Most commonly when reviewing internal product roadmaps to our sales teams because we've burned too many times when customers complain that we haven't implemented something we never announced but a sales person mentioned/showed.
If you have a camera on a stand or are holding up a phone, other participants will able to see it and object. Of course it's still possible to get around it. It's possible to get around anything. The idea of privacy controls is to make bad-faith jerks have to work significantly harder.
You can certainly get cameras like that, they're not the norm. You can object to any privacy feature by pointing out that it doesn't provide guaranteed security. Personally I am tired of having my privacy eroded by people holding themselves out as security realists who are always coming up with new ways to break things and/or normalizing existing ones.
> 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.
