Federated Learning under Siege: A Survey of Attacks and Defenses

Saturday 19 April 2025


Federated learning, a type of distributed machine learning that allows multiple devices or organizations to collaborate on training artificial intelligence models without sharing their individual data, has been gaining popularity in recent years. However, this approach also raises concerns about security and vulnerability to attacks.


Researchers have identified several threats to federated learning, including malicious actors who can manipulate the training process by injecting poisoned data or altering model updates. This can compromise the accuracy of the trained models and potentially even allow attackers to steal sensitive information.


To address these concerns, a team of scientists has proposed integrating identity-based identification (IBI) into federated learning systems. IBI is a cryptographic technique that uses public-key cryptography to authenticate devices and ensure their identities are verified.


The researchers demonstrated how IBI can be used to prevent malicious clients from reconnecting to the system after being disconnected or kicked out due to suspicious behavior. This is particularly important in federated learning, where multiple devices may need to collaborate on training a model over an extended period.


In traditional machine learning, data is often centralized and stored in a single location, making it easier to detect and prevent attacks. However, federated learning’s decentralized nature makes it more challenging to ensure the integrity of the training process.


The scientists used a combination of cryptographic techniques, including elliptic curve cryptography and modified-Schnorr signatures, to develop an IBI scheme that is secure and efficient. They also tested their approach using real-world data from healthcare applications, demonstrating its effectiveness in preventing attacks.


One of the key advantages of IBI is that it does not require significant modifications to existing federated learning systems. This makes it a practical solution for organizations looking to improve the security of their distributed machine learning models.


The integration of IBI into federated learning also has broader implications for cybersecurity and data protection. As more devices and organizations adopt decentralized AI training, the need for robust authentication and verification mechanisms will only continue to grow.


In the future, researchers hope to explore further applications of IBI in other areas of artificial intelligence, such as natural language processing and computer vision. With its potential to improve the security and integrity of distributed machine learning models, IBI could play a critical role in shaping the future of AI development.


Cite this article: “Federated Learning under Siege: A Survey of Attacks and Defenses”, The Science Archive, 2025.


Federated Learning, Artificial Intelligence, Machine Learning, Identity-Based Identification, Cryptographic Technique, Public-Key Cryptography, Decentralized Ai Training, Cybersecurity, Data Protection, Elliptic Curve Cryptography.


Reference: Jakub Kacper Szelag, Ji-Jian Chin, Lauren Ansell, Sook-Chin Yip, “Integrating Identity-Based Identification against Adaptive Adversaries in Federated Learning” (2025).


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