The EU Cyber Resilience Act (CRA) turns product cybersecurity into a lifecycle compliance obligation for manufacturers, importers, distributors, and integrators of products with digital elements on the EU market, a load that falls largely on small and medium-sized enterprises (SMEs) that rarely have dedicated governanc...
Nikolaos Kekatos, Georgios Koutidis, Mihaela Curcă et al.· 1 citation
Protecting critical infrastructure increasingly depends on continuously verifying large IoT fleets against formal security specifications at runtime. Yet the runtime-verification (RV) pipelines proposed for this task are typically single-host prototypes whose monitors read a shared log file, with no resilience to the f...
Nikolaos Kekatos, Marinelio Chintri, Panagiotis Katsaros et al.· 4 citations
Cyber resiliency in edge-IoT deployments is fundamentally an economic problem: detection must keep critical processes operating under attack, but defender resources (compute, bandwidth, operator attention) are bounded. Centralised cloud monitoring offers expressive cross-device detection at prohibitive bandwidth cost;...
Nikolaos Kekatos, Marinelio Chintri, Panagiotis Katsaros et al.· 6 citations
Security operations centres and national incident-response teams defending critical infrastructure collect abundant threat data yet struggle to turn it into actionable intelligence. A malware sandbox produces detailed behavioural evidence, but as a large, unranked report whose confidence is unstated. We present CG-CTI,...
Nikolaos Kekatos, Mihaela Curcă, Georgios Koutidis et al.· 0 citations
Results show that formal temporal monitoring adds value exactly when the trace exposes trustworthy history, and quantify how far current benchmarks are from that point and propose a twelve-field enforcement-ready trace schema.
Nikolaos Kekatos, Stylianos Basagiannis, Marinelio Chintri et al.· Proceedings of the 2026 8th...· 2 citations
This case study documents a CRA preparedness pilot for one such product, SEUXDR, an AI-augmented security monitoring product with a large-language-model active-response component on the open-source CYBERFORT platform, and offers practitioners a replicable starting point for translating CRA legal text into operational p...
Georgios Koutidis, Nikolaos Kekatos, Marina Korgiala-Karyda et al.· 0 citations
An interpretable temporal-logic rule miner is used to recover a portable Fragment-EH rule that the protocol reveals to be a within-packet, near-definitional co-occurrence rather than a temporal pattern, so the temporal-logic machinery does no work for this dominant rule.
Priyankar Sinha, Nikolaos Kekatos, Stylianos Basagiannis et al.· 1 citation
Swarms of LLM-assisted autonomous robots are increasingly proposed for cooperative intelligence, surveillance, and reconnaissance (ISR) in contested environments. A growing class of their assurance failures arises not within any single platform but across the swarm: individually-compliant actions compose into a mission...
Nikolaos Kekatos, Stylianos Basagiannis, Panagiotis Katsaros et al.· 0 citations
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