On 07/10/2024, Léo LAVAUR, PhD candidate at the IMT Atlantique and member of the SOTERN team defended his PhD thesis. The team congratulates Léo LAVAUR on his serious work, which was appreciated by his peers, and wishes him all the best for the future at the University of Luxembourg and the SnT, Interdisciplinary Centre for Security, Reliability and Trust. A video of the defense is available here. You will find below the subject of this PhD thesis and the composition of the jury.
Improving Intrusion Detection in Distributed Systems with Federated Learning
Collaboration between different cybersecurity actors is essential to fight against increasingly sophisticated and numerous attacks. However, stakeholders are often reluctant to share their data, fearing confidentiality and privacy issues and the loss of their competitive advantage, although it would improve their intrusion detection models. Federated learning is a recent paradigm in machine learning that allows distributed clients to train a common model without sharing their data. These properties of collaboration and confidentiality make it an ideal candidate for sensitive applications such as intrusion detection. While several applications have shown that it is indeed possible to train a single model on distributed intrusion detection data, few have focused on the collaborative aspect of this paradigm. In this manuscript, we study the use of federated learning to build collaborative intrusion detection systems. In particular, we explore (i) the impact of data quality in heterogeneous contexts, (ii) the exposure to certain types of poisoning attacks, and (iii) tools and methodologies to improve the evaluation of these types of algorithms.
Jury members
Anne-Marie KERMARREC, Professor at EPFL, Reviewer
Éric TOTEL, Professor at Télécom SudParis, Reviewer
Sonia BEN MOKHTAR, Research Director at CNRS, Examiner
Pierre-François GIMENEZ, Associate Professor at CentraleSupelec, Examiner
Vincent NICOMETTE, Professor at INSA Toulouse, Examiner
Fabien AUTREL, Research Engineer at IMT Atlantique, Supervisor
Marc-Oliver PAHL, Research Director at IMT Atlantique, Supervisor
Yann BUSNEL, Professor at Institut Mines-Télécom, Thesis Director
