New Rowhammer attack silently corrupts AI models on GDDR6 Nvidia cards — 'GPUHammer' attack drops AI accuracy from 80% to 0.1% on RTX A6000

GPUHammer is a new Rowhammer-based attack targeting NVIDIA GPUs with GDDR6 memory. It flips bits in VRAM to silently corrupt AI models, dropping accuracy from 80% to under 1%. NVIDIA urges users to enable ECC, though it slightly reduces performance and available memory.