Regarding firmware patching, look at InternalBlue [1]. I guess they did it for one IC, but obviously can't do it at will for just any IC and instead hand wave "

Regarding firmware patching, look at InternalBlue [1]. I guess they did it for one IC, but obviously can't do it at will for just any IC and instead hand wave "it can be done". Overall I don't think it's impossible: Someone stated it would be unidirectional, and the bitrate was not given (read: could even be minutes per bit for all we know). But yeah, I'm sceptical, too. A gateway would have made more sense to me, because it does not require firmware-level cooperation with chip set manufacturers and you can reuse existing space networks. Especially since they're not aiming to add the feature into future ICs (which could have driven sales across the whole industry), but backport it instead, competing with the manufacturers and voiding existing FCC et al. certification. [1] https://github.com/seemoo-lab/internalblue https://github.com/seemoo-lab/internalblue