> You build it directly into the GPU firmware and don't give the operating system any access to it. State-level actors have been know to fiddle with firmware,

> You build it directly into the GPU firmware and don't give the operating system any access to it. State-level actors have been know to fiddle with firmware, specifically in the past for hard drives: * https://www.sciencedirect.com/science/article/abs/pii/S135348581530012X https://www.sciencedirect.com/science/article/abs/pii/S13534... * https://www.wired.com/2015/02/nsa-firmware-hacking/ https://www.wired.com/2015/02/nsa-firmware-hacking/ I could see how cameras and microphones could be enticing targets.