FLARE: A Wireless Side-Channel Fingerprinting Attack on Federated Learning

arXiv — cs.LGFriday, December 12, 2025 at 5:00:00 AM
  • A new study introduces FLARE, a wireless side-channel fingerprinting attack targeting Federated Learning (FL) systems. This attack exploits flow-level and packet-level statistics from encrypted wireless traffic to infer the architecture of deep learning models, such as CNNs and RNNs, used by clients in FL. The research highlights a previously unexplored vulnerability in FL, which is designed to protect user data and privacy during collaborative model training.
  • The implications of FLARE are significant as it reveals potential weaknesses in Federated Learning, which is increasingly adopted for its privacy-preserving capabilities. If attackers can discern model architectures, they may tailor more sophisticated attacks, undermining the security and trust that FL aims to provide. This could lead to broader concerns regarding the integrity of machine learning systems that rely on FL.
  • The emergence of FLARE underscores ongoing challenges in securing Federated Learning against various threats, including backdoor attacks and model adaptation vulnerabilities. As FL continues to evolve, the need for robust security measures becomes paramount, especially in applications involving sensitive data. This situation reflects a broader trend in AI and machine learning, where balancing performance and security remains a critical focus for researchers and practitioners.
— via World Pulse Now AI Editorial System

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