I wonder how that's affected with post processing - most cell phone camera's seem to have a ton of post processing applied these days that you think would cause that sort of gunk to count for less.
yes it does, there is also acoustic analysis of keyboard noise, quite a lot and this all happens at the time of account creation and early account use until the FB AI thinks it knows who you are, there is no need for constant listening or watching,
So you're claiming that Facebook is using 0days to bypass browser controls on your mic to do acoustical analysis of keyboard noise when you sign up?
Do you have a source for this? I've done a reasonable amount of work on weaponizing these sorts of attacks and it's definitely nontrivial. I'd be shocked to find out that Facebook had successfully deployed them at scale.
nontrivial is in the eyes of the beholder. FB does a lot of things quite shocking, and uses zero days, and soc eng like jack the bear, dont forget zucks roots, he did this stuff from day one. BTW im not abou to distribute hack source on HN, pearls among swine goes nowhere here.
Let's please not hypothesize exotic attack capability without evidence. It makes it difficult to get people to pay attention when we really need them to be concerned about sophisticated adversaries.