Brau, Fabio

Silent Until Sparse: Backdoor Attacks on Semi-Structured Sparsity

2025 · arXiv (Cornell University)

Semi-structured (2:4) sparsity is a widely adopted pruning method in modern hardware and software ecosystems (e.g., NVIDIA Sparse Tensor Cores and PyTorch), achieving up to 2X faster inference and reduced memory footprint with negligible accuracy …