Free-text pseudonymization provides a stronger privacy-utility tradeoff than suppression or generalization for LLM-drafted messages, and single-message evaluations underestimate leakage that appears under follow-up questions.
Half aredirect questions(explicitly requesting the attribute) and half areimplicit needs(the attribute would arise organically in a helpful reply)
1 Pith paper cite this work. Polarity classification is still indexing.
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Say Something Else: Rethinking Contextual Privacy as Information Sufficiency
Free-text pseudonymization provides a stronger privacy-utility tradeoff than suppression or generalization for LLM-drafted messages, and single-message evaluations underestimate leakage that appears under follow-up questions.