12 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…
Scalable Design of Attack-Resilient Controllers for Positive Systems
Alba Gurpegui, Sribalaji C. Anand, André M. H. Teixeira
This paper proposes a framework for secure and resilient controller design for positive systems against cyber-attacks. In particular, we consider a network-controlled system where…
Resilient Consensus in Agentic AI
Sribalaji C. Anand, George J. Pappas
Large language model (LLM) agents are increasingly deployed in multi-agent systems where they must coordinate and agree on shared decisions. We ask whether classical resilient cons…
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…
Adversarial Robustness of Deep State Space Models for Forecasting
Sribalaji C. Anand, George J. Pappas
State-space model (SSM) for time-series forecasting have demonstrated strong empirical performance on benchmark datasets, yet their robustness under adversarial perturbations is po…
Stealthy Sensor Attacks Against Direct Data-Driven Controllers
Sribalaji C. Anand
This paper investigates the vulnerability of discrete-time linear time-invariant systems to stealthy sensor attacks during the learning phase. In particular, we demonstrate that a…