"Hackers may have figured out a way to store and execute malicious code on a graphics card, potentially allowing it to avoid detection by antivirus software. The code has also reportedly been sold via a hacking forum... Code that sits undetected in GPU memory is likely very dangerous due to the potential difficulty associated with removing it, which could rely on flashing the GPU entirely—an already risky affair..." https://www.pcgamer.com/amd-nvidia-and-intel-gpus-could-be-capable-of-hosting-malicious-code/
The post then explains that the technique works only on Windows machines that support OpenCL 2.0 or higher—an open standard used to accelerate applications on GPUs. Also that the technique has been tested on Intel UHD 620, UHD 630, Radeon RX 5700, GeForce GTX 740M, and GeForce GTX 1650 graphics cards.
