Oh boy, OpSec should pay attention to this.

It starts with "no monitors facing windows" and "all visitors hand over phones and any other devices with photographic possibilities" and moves up the paranoia/professional caution scale from there.

Aha! I was wondering where the github stars were coming from. :)

I did get a kick out of this from the OP: > Binary: Born from YouTube compression being absolutely brutal. RGB mode is very sensitive to compression as a change in even one point of one of the colors of one of the pixels dooms the file to corruption.

It's more than youtube compression -- video compression in general wreaks absolute havoc on our meticulously arranged (and sometimes colored) pixels. It's actually pretty fun/instructive to step through the transition between (what you want to be) two distinct frames when you're trying to (ab)use video for this sort of use case -- there are segments of the frames that get correlated and "flip" together first, resulting in in-between frames that are gibberish even with a modest amount of ECC in play.