Search Results for author: Florent Guépin

Found 5 papers, 1 papers with code

A Zero Auxiliary Knowledge Membership Inference Attack on Aggregate Location Data

no code implementations26 Jun 2024 Vincent Guan, Florent Guépin, Ana-Maria Cretu, Yves-Alexandre de Montjoye

To measure the risk of an MIA performed by a realistic adversary, we develop the first Zero Auxiliary Knowledge (ZK) MIA on aggregate location data, which eliminates the need for an auxiliary dataset of real individual traces.

Inference Attack Membership Inference Attack

Lost in the Averages: A New Specific Setup to Evaluate Membership Inference Attacks Against Machine Learning Models

no code implementations24 May 2024 Florent Guépin, Nataša Krčo, Matthieu Meeus, Yves-Alexandre de Montjoye

Taken together, our results show that current MIA evaluation is averaging the risk across datasets leading to inaccurate risk estimates, and the risk posed by attacks leveraging information about the target dataset to be potentially underestimated.

Synthetic is all you need: removing the auxiliary data assumption for membership inference attacks against synthetic data

no code implementations4 Jul 2023 Florent Guépin, Matthieu Meeus, Ana-Maria Cretu, Yves-Alexandre de Montjoye

While membership inference attacks (MIAs), based on shadow modeling, have become the standard to evaluate the privacy of synthetic data, they currently assume the attacker to have access to an auxiliary dataset sampled from a similar distribution as the training dataset.

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Achilles' Heels: Vulnerable Record Identification in Synthetic Data Publishing

no code implementations17 Jun 2023 Matthieu Meeus, Florent Guépin, Ana-Maria Cretu, Yves-Alexandre de Montjoye

The choice of vulnerable records is as important as more accurate MIAs when evaluating the privacy of synthetic data releases, including from a legal perspective.

Correlation inference attacks against machine learning models

1 code implementation16 Dec 2021 Ana-Maria Creţu, Florent Guépin, Yves-Alexandre de Montjoye

Despite machine learning models being widely used today, the relationship between a model and its training dataset is not well understood.

Attribute BIG-bench Machine Learning +3

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