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2 posts

• Federated Learning Poisoning: The Aggregation Attack Surface

  FL aggregation is blind to participant intent. Malicious clients can embed backdoors or reconstruct private training data from gradients.

  Jul 1, 2026 federated-learning poisoning-attacks backdoor privacy threat-modeling defense-patterns gradient-attacks differential-privacy secure-aggregation

• Fine-Tuning Trojans: Injecting Backdoors Through the Model Training Pipeline

  How malicious training data, tampered datasets, and compromised fine-tuning APIs plant backdoored behavior in legitimate base models — and what defenders can do.

  Jun 28, 2026 supply-chain backdoor fine-tuning model-security dataset-poisoning adversarial-ml