4 ms·
I just realized the BPS is there to augment the return channel. Not only can the advertiser figure out what you are watching, but also where you are located.
by xattt 2y ago
I just realized the BPS is there to augment the return channel. Not only can the advertiser figure out what you are watching, but also where you are located.
- lxgr 2y agoWi-Fi geolocation has been around for a while now and is very accurate too, so if TV/receiver manufacturers choose to reveal your location to advertisers (whether out of their own greed or because it's required to receive ATSC 3.0 DRM keys), they can already do so without any problem.
- Lammy 2y agoThanks to the beamforming that's central to modern Wi-Fi and 5G cellular standards they can even see through your walls using the backscattered energy of the steered beam, like an airport security scanner for the entire planet: https://arxiv.org/pdf/2301.00250.pdf https://arxiv.org/pdf/2301.00250.pdf https://people.csail.mit.edu/fadel/papers/wivi-paper.pdf https://people.csail.mit.edu/fadel/papers/wivi-paper.pdf