An autonomous system that asks for a privileged physical action is usually gated on integrity evidence: a platform proves what it is running, and the request is granted or refused on that basis. Such a gate is normally treated as a predicate, yet the evidence behind it has an age, the decision that consumes it has a la...
D. Nikou, Nikolaos Kekatos, Sophia G. Petridou et al.· 0 citations
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
LLM-based agents are entering decision-support roles in defence staff work, where the obligations they must respect are already written down and binding, and where retraining is not available as a control because models arrive as procured components. What can be placed under engineering control is the interface between...
Nikolaos Kekatos, D. Nikou, Anastasios Temperekidis 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
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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