Can LLMs Keep a Secret? Testing Privacy Implications of Language Models via Contextual Integrity Theory

Fuente: arXiv
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Autores principales: Mireshghallah, Niloofar, Kim, Hyunwoo, Zhou, Xuhui, Tsvetkov, Yulia, Sap, Maarten, Shokri, Reza, Choi, Yejin
Formato: Preprint
Publicado: 2023
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author Mireshghallah, Niloofar
Kim, Hyunwoo
Zhou, Xuhui
Tsvetkov, Yulia
Sap, Maarten
Shokri, Reza
Choi, Yejin
author_facet Mireshghallah, Niloofar
Kim, Hyunwoo
Zhou, Xuhui
Tsvetkov, Yulia
Sap, Maarten
Shokri, Reza
Choi, Yejin
contents The interactive use of large language models (LLMs) in AI assistants (at work, home, etc.) introduces a new set of inference-time privacy risks: LLMs are fed different types of information from multiple sources in their inputs and are expected to reason about what to share in their outputs, for what purpose and with whom, within a given context. In this work, we draw attention to the highly critical yet overlooked notion of contextual privacy by proposing ConfAIde, a benchmark designed to identify critical weaknesses in the privacy reasoning capabilities of instruction-tuned LLMs. Our experiments show that even the most capable models such as GPT-4 and ChatGPT reveal private information in contexts that humans would not, 39% and 57% of the time, respectively. This leakage persists even when we employ privacy-inducing prompts or chain-of-thought reasoning. Our work underscores the immediate need to explore novel inference-time privacy-preserving approaches, based on reasoning and theory of mind.
format Preprint
id arxiv_https___arxiv_org_abs_2310_17884
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Can LLMs Keep a Secret? Testing Privacy Implications of Language Models via Contextual Integrity Theory
Mireshghallah, Niloofar
Kim, Hyunwoo
Zhou, Xuhui
Tsvetkov, Yulia
Sap, Maarten
Shokri, Reza
Choi, Yejin
Artificial Intelligence
Computation and Language
Cryptography and Security
The interactive use of large language models (LLMs) in AI assistants (at work, home, etc.) introduces a new set of inference-time privacy risks: LLMs are fed different types of information from multiple sources in their inputs and are expected to reason about what to share in their outputs, for what purpose and with whom, within a given context. In this work, we draw attention to the highly critical yet overlooked notion of contextual privacy by proposing ConfAIde, a benchmark designed to identify critical weaknesses in the privacy reasoning capabilities of instruction-tuned LLMs. Our experiments show that even the most capable models such as GPT-4 and ChatGPT reveal private information in contexts that humans would not, 39% and 57% of the time, respectively. This leakage persists even when we employ privacy-inducing prompts or chain-of-thought reasoning. Our work underscores the immediate need to explore novel inference-time privacy-preserving approaches, based on reasoning and theory of mind.
title Can LLMs Keep a Secret? Testing Privacy Implications of Language Models via Contextual Integrity Theory
topic Artificial Intelligence
Computation and Language
Cryptography and Security
url https://arxiv.org/abs/2310.17884