4 ms·
You build it directly into the GPU firmware and don't give the operating system any access to it.
by chongli 7mo ago
You build it directly into the GPU firmware and don't give the operating system any access to it.
- 3eb7988a1663 7mo agoThat is still a blackbox code implementation which could be updated at any time. I trust wires, not programmers.
- s3p 7mo agoI mean, we don't really have any indication that the MacBook camera light is hard wired into anything.
- 3eb7988a1663 7mo agoFor those who are interested, you can disassemble/image the assembly and see there is no funny business. People have done it. If there is something more complex than a power line, something is afoot. I have no way of interrogating some GPU firmware.
- chongli 7mo agoThe firmware could be flashed to the device in factory and then write-protected by burning a fuse in the circuit.
- saagarjha 7mo agoThis is not the case.
- solarkraft 7mo agoI still don’t see how this could be more secure than connecting the LED to the camera’s power lines.
- throw0101d 7mo ago> 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.