Author

Vasileios Gkioulos

4 papers indexed here

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Preprint Aug 2026

Digital Twin Degradation: Detecting Cyber Physical Attacks via Temporal Inconsistencies

Digital Twins (DTs) are increasingly used to monitor and analyze Cyber Physical Systems (CPS). However, in adversarial environments, the fidelity of a DT cannot be assumed. Communication delays, data manipulation, sensor degradation, or partial information loss may cause the DT state to diverge from the physical proces...

Konstantinos E. Kampourakis, Vasileios Gkioulos, S. Katsikas · 1 citation

Preprint Aug 2026

Detect First, Explain Later: Training-Free Temporal-Memory Digital Twin Anomaly Detection with Post-Hoc LLM Interpretation for ICS

Industrial Control Systems (ICS) are increasingly exposed to cyber-physical attacks that manifest as subtle and temporally evolving deviations in process behavior. Detecting such anomalies requires reasoning over persistence, cross-signal dependencies, and process-level constraints. Digital Twins (DTs) encode system kn...

Konstantinos E. Kampourakis, Vasileios Gkioulos, S. Katsikas · 0 citations

Review Sep 2026

Using LLMs to Elicit Security Requirements for Service-Oriented Cyber Ranges

Findings show that LLMs can support early stages of the elicitation of security requirements, although human review is still needed, especially to improve or adjust certain aspects of the requirements.

Michail Takaronis, Athanasia Kollarou, G. Kavallieratos et al. · 0 citations

Review Open access Aug 2026

A Systematic Review of Cybersecurity Testbeds for Smart Environments: Architectures, Attack Coverage, and Defensive Evidence

A cross-domain taxonomy of testbed architectures, attack families, and defensive control coverage is introduced, and the evidence strength of reported mitigations using NIST cybersecurity framework-derived operational functions are mapped using NIST cybersecurity framework-derived operational functions.

Vyron Kampourakis, Konstantinos E. Kampourakis, Michail Takaronis et al. · Future Internet · 0 citations