Hydra stabilizes multi-concept backdoor attacks in diffusion models via evolutionary trigger search in text encoder space and trigger-clean regularization during multi-task fine-tuning, achieving high attack success while preserving clean image quality.
The stronger the diffusion model, the easier the backdoor: Data poisoning to induce copy- right breaches without adjusting finetuning pipeline
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Cosine-Aware Adaptive EWC dynamically adjusts parameter regularization using cosine semantic utility and adaptive scheduling to achieve higher ASR-fidelity balance and OOD robustness in T2I backdoor attacks.
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Awakening the Hydra: Stabilizing Multi-Concept Backdoor Injection in Text-to-Image Diffusion Models
Hydra stabilizes multi-concept backdoor attacks in diffusion models via evolutionary trigger search in text encoder space and trigger-clean regularization during multi-task fine-tuning, achieving high attack success while preserving clean image quality.
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Beyond the False Trade-off: Adaptive EWC for Stealthy and Generalizable T2I Backdoors
Cosine-Aware Adaptive EWC dynamically adjusts parameter regularization using cosine semantic utility and adaptive scheduling to achieve higher ASR-fidelity balance and OOD robustness in T2I backdoor attacks.