Yeah, the B-frames were my thought too, but ordinary sensor noise would hopefully make the individual frames different enough. If you’re doing green-screen back

Yeah, the B-frames were my thought too, but ordinary sensor noise would hopefully make the individual frames different enough. If you’re doing green-screen background switching, or transmitting a static image then it’s definitely going to be a problem. But given all the other security issues that seem to hover around Zoom like a cloud of angry bees, this is probably all moot - if you really want to crack a video stream then there are probably easier ways.