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Comment by BrowserMeeting | Hacker News Reader

Some of these features sound like anti-security and definitely anti-privacy features. Will definitely make you think twice about having a “private” meeting on Zoom if they’re going to embed my email on a screenshot someone else takes. Great way to get a meeting organizers email...

> Screen Share Watermark Superimposes the image of a meeting participant’s email address onto shared content in the event a participant takes a screenshot.

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Isn’t the point that it embeds your email address onto screenshots you take?

Zoom's intended for corporate customers. Many of us have compliance requirements that demand not having individual privacy for employees.

If you want to elicit a change, the biggest value for your time will be lobbying against FedRAMP and its corollaries.

I wonder how zoom determines if a screenshot is taken.

On Linux/Wayland at least, there's no API for an app to determine that this is happening. So they'd have to show the watermark all the time.

Likely by detecting certain keystrokes (that's what Snapchat does on iOS for example). Idk if there are other ways on macOS or Windows.

Definitely not on Linux. Global hotkeys are managed by the compositor and can't be spied on by applications. There's also no API no read keystrokes from external apps. This is actually a security feature.

AFAIK, on iOS, the app is actually sent an event by the OS when a screenshot is captured.

You might be specifically talking about Wayland here then, but with X on the other hand, it's not difficult for example [0]

[0] https://security.stackexchange.com/questions/170596/is-it-po...

There is an API on iOS: UIApplicationUserDidTakeScreenshotNotification

https://developer.apple.com/documentation/uikit/uiapplicatio...

I was not aware of this- thank you!

Yes as I understand the watermark is on the Zoom video stream you're viewing, so it doesn't need to detect when you take a local screenshot.

If this were google or Microsoft this comment wouldn't be getting downvoted

Not sure why I got downvoted on that? Everyone must be really happy with Zoom. lol

Can you respond to the people saying you didn’t say the correct facts? IE which email is included. And where

Probably because they seemed to have misinterpreted the text they quoted in their own comment. The participant who takes the screenshot has their own email embedded in their screenshot, not someone else's.

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