LETHE uses parameter-level model merging plus prompt-level word definitions to dilute backdoor behavior in LLMs, cutting attack success to below 7% in most tested settings.
Backdooring instruction-tuned large lan- guage models with virtual prompt injection
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Lethe: Purifying Backdoored Large Language Models with Knowledge Dilution
LETHE uses parameter-level model merging plus prompt-level word definitions to dilute backdoor behavior in LLMs, cutting attack success to below 7% in most tested settings.