10 papers
Katz Centrality-Based Security Allocation in Positive Networks
Anh Tung Nguyen, Sribalaji C. Anand, André M. H. Teixeira
This paper deals with security allocation challenges for networked control systems represented by positive-weighted digraphs under stealthy false data injection attacks. These syst…
Divergence-based Safety Measure for Large Language Models via Rational Inattention
Anh Tung Nguyen, Quanyan Zhu
This paper proposes a divergence-based safety measure for large language models (LLMs) under embedding-input attacks. The proposed measure quantifies the worst-case Kullback--Leibl…
Detection-Control Games under Hidden Modes: Resilience-Induced Blindness Phenomenon
Anh Tung Nguyen, Quanyan Zhu
This paper studies resilient control for cyber-physical systems operating under hidden degraded or compromised modes. We formulate hidden-mode detection and belief-dependent contro…
Attack Detection using Time Series Foundation Models
Sribalaji C. Anand, Anh Tung Nguyen, George J. Pappas
This paper addresses the problem of attack detection in cyber-physical systems without any knowledge of the plant model or its structure. A remotely located plant transmits sensor…
Secure Filtering against Spatio-Temporal False Data Attacks under Asynchronous Sampling
Zishuo Li, Anh Tung Nguyen, André M. H. Teixeira +2
This paper addresses the secure state estimation problem for continuous linear time-invariant systems with non-periodic and asynchronous sampled measurements, where the sensors nee…
Centrality-Based Security Allocation in Networked Control Systems
Anh Tung Nguyen, Andreas Hertzberg, André MH Teixeira
This paper addresses the security allocation problem within networked control systems, which consist of multiple interconnected control systems under the influence of two opposing…