Does HoloLens also use a keyboard you can type into with eye movement? If not, seems to be unrelated to this attack at all. If yes, then how would it prevent th

Does HoloLens also use a keyboard you can type into with eye movement? If not, seems to be unrelated to this attack at all. If yes, then how would it prevent this attack where you can see the persons eyes? Doesn't matter if the tracking data is on-device only or not as you're broadcasting an image of the face anyways.