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To uncover a deepfake video call, ask the caller to turn sideways

metaphysic.ai

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Re: To uncover a deepfake video call, ask the caller to turn sideways

#52
I was recently looking for designers for my company when I came across an interesting profile on Dribbble. I reached out and quickly scheduled a time when we could talk over zoom. At the meeting time, in comes this person who seems to have a strange-looking, silicone-like face. I was using my Zoom account (I rarely use other peoples zooms unless I trust them), to avoid situations like this. One thing I noticed is that when the candidate touched their face, their fingers would appear to sink into their skin - almost as if it were made of liquid. Secondly, their face appeared larger, lighter and smoother than their neck. I got spooked an immediately let the candidate know that I was not comfortable moving forward.

More interestingly, what exactly are them mechanics of getting a deep fake into video call? How is it possible that a what seems like a deepfake could make its way into my Zoom? Is Zoom enabling external plugins that alter video details?

https://www.dropbox.com/s/4hf9c9kg52nxal0/Screen%20Shot%2020...

Re: To uncover a deepfake video call, ask the caller to turn sideways

#53
Probably a more robust test would be asking the caller to run their hand through their hair a few times. Maybe you could pre-render a few samples, but it would be trivial to request the person pass their hands through their hair in a specific way, or simply do it again after their hair is already messed up a bit from the first time. It could still be defeated by the caller having the same hair style (or wearing a good wig) as the person they are imitating, but then making someone look like someone else with practical effects has been a thing forever and it has not been a huge problem.

Re: To uncover a deepfake video call, ask the caller to turn sideways

#55
post #52

I was recently looking for designers for my company when I came across an interesting profile on Dribbble. I reached out and quickly scheduled a time when we could talk over zoom. At the meeting time, in comes this person who seems to have a strange-looking, silicone-like face. I was using my Zoom account (I rarely use other peoples zooms unless I trust them), to avoid situations like this. One thing I noticed is tha…

Things like OBS (streaming software) can create a virtual camera. I am guessing its something like that where Zoom does not even know the camera is not actually real hardware.

Re: To uncover a deepfake video call, ask the caller to turn sideways

#56
post #52

I was recently looking for designers for my company when I came across an interesting profile on Dribbble. I reached out and quickly scheduled a time when we could talk over zoom. At the meeting time, in comes this person who seems to have a strange-looking, silicone-like face. I was using my Zoom account (I rarely use other peoples zooms unless I trust them), to avoid situations like this. One thing I noticed is tha…

The live-streaming software OBS has a “virtual webcam” feature that can make a generated video feed behave like a hardware webcam. Perhaps something similar is being used to feed generated video into zoom?

Re: To uncover a deepfake video call, ask the caller to turn sideways

#58
post #52

I was recently looking for designers for my company when I came across an interesting profile on Dribbble. I reached out and quickly scheduled a time when we could talk over zoom. At the meeting time, in comes this person who seems to have a strange-looking, silicone-like face. I was using my Zoom account (I rarely use other peoples zooms unless I trust them), to avoid situations like this. One thing I noticed is tha…

Input for software can be anything. Camera feed can be a generated one and the software consuming it doesn't have to be aware it isn't a real physical camera.

Zoom isn't aware.

Re: To uncover a deepfake video call, ask the caller to turn sideways

#59
post #52

I was recently looking for designers for my company when I came across an interesting profile on Dribbble. I reached out and quickly scheduled a time when we could talk over zoom. At the meeting time, in comes this person who seems to have a strange-looking, silicone-like face. I was using my Zoom account (I rarely use other peoples zooms unless I trust them), to avoid situations like this. One thing I noticed is tha…

You can just make Zoom use any webcam on your system

And you can write your own webcam drivers to use in any program

Or use existing software with virtual webcam output like OBS or ManyCam and write a plug-in for that

Our emit a network video stream and just play your video in that kind of software instead of writing a plugin

Re: To uncover a deepfake video call, ask the caller to turn sideways

#60
post #52

I was recently looking for designers for my company when I came across an interesting profile on Dribbble. I reached out and quickly scheduled a time when we could talk over zoom. At the meeting time, in comes this person who seems to have a strange-looking, silicone-like face. I was using my Zoom account (I rarely use other peoples zooms unless I trust them), to avoid situations like this. One thing I noticed is tha…

It’s fairly trivial to have a virtual camera source and point Zoom to that as it’s input. It has nothing to do with integrating deeply with Zoom or getting “into” your Zoom. Check out Snap Camera[0] for an example.

[0] https://snapcamera.snapchat.com/

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