Preprint
Aug 2026
AEGIS: Attention-Embedding Gradient Isolation Shield - Triple-Channel Gradient Masking for Privacy-Preserving Federated LLM Fine-Tuning
AEGIS (Attention-Embedding Gradient Isolation Shield), a lightweight defence that reduces token recovery rates to near zero against a range of gradient inversion attacks, both analytical and optimisation-based, while preserving or improving model utility.
Ye Tao, Hong Shen, Hui Tian et al.
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