9 papers
Building Europe's Quantum Shield: The Strategic view for a Continent-Wide Quantum Key Distribution (QKD) Infrastructure
Leandros Maglaras, Ilias Papastamatiou, Alexios Aivaliotis +2
The fast growth of quantum computing can lead to amazing scientific breakthroughs while on the same time can be used to break today's security systems, raising new risks for existi…
Ember: A Serverless Peer-to-Peer End-to-End Encrypted Messaging System over an IPv6 Mesh Network
Hamish Alsop, Leandros Maglaras, Naghmeh Moradpoor
A substantial body of research has focused on formalising what constitutes a ``secure'' messaging system, recognising that end-to-end encryption alone is insufficient to capture th…
From Prompt Injections to Protocol Exploits: Threats in LLM-Powered AI Agents Workflows
Mohamed Amine Ferrag, Norbert Tihanyi, Djallel Hamouda +3
Autonomous AI agents powered by large language models (LLMs) with structured function-calling interfaces enable real-time data retrieval, computation, and multi-step orchestration.…
Everyone Needs AIR: An Agnostic Incident Reporting Framework for Cybersecurity in Operational Technology
Nubio Vidal, Naghmeh Moradpoor, Leandros Maglaras
Operational technology (OT) networks are increasingly coupled with information technology (IT), expanding the attack surface and complicating incident response. Although OT standar…
Reliability and Resilience of AI-Driven Critical Network Infrastructure under Cyber-Physical Threats
Konstantinos A. Lizos, Leandros Maglaras, Elena Petrovik +3
The increasing reliance on AI-driven 5G/6G network infrastructures for mission-critical services highlights the need for reliability and resilience against sophisticated cyber-phys…
JamShield: A Machine Learning Detection System for Over-the-Air Jamming Attacks
Ioannis Panitsas, Yagmur Yigit, Leandros Tassiulas +2
Wireless networks are vulnerable to jamming attacks due to the shared communication medium, which can severely degrade performance and disrupt services. Despite extensive research,…