AR cameras capture more than users realize

AR/VR headsets carry many external-facing cameras (most Oculus devices have two or four; the rumored Apple device will have 12 across multiple spectral bands) that run constantly and will see what your obscured eyes cannot — capturing sensitive information (e.g., a naked child running through a living room) that the user may never know about — which is driving significant investment in what data is instantly discarded versus kept local.