Blar i NTNU Open på forfatter "Katsikas, Sokratis"

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    • SafeSec Tropos: Joint security and safety requirements elicitation 

      Kavallieratos, Georgios; Katsikas, Sokratis; Gkioulos, Vasileios (Peer reviewed; Journal article, 2020)
      The growing convergence of information technology with operational technology and the accordant proliferation of interconnected cyber-physical systems (CPSs) has given rise to several security and safety challenges. One ...

    • SDN-Based Resilient Smart Grid: The SDN-microSENSE Architecture 

      Radoglou-Grammatikis, Panagiotis; Sarigiannidis, Panagiotis; Dalamagkas, Christos; Spyridis, Yannis; Lagkas, Thomas; Efstathopoulos, Georgios; Sesis, Achilleas; Labrador Pavon, Ignacio; Trapero Burgos, Ruben; Diaz, Rodrigo; Sarigiannidis, Antonios; Papamartzivanos, Dimitris; Menesidou, Sofia Anna; Ledakis, Giannis; Pasias, Achilleas; Kotsiopoulos, Thanasis; Drosou, Anastasios; Mavropoulos, Orestis; Colet Subirachs, Alba; Paradell Sola, Pol; Domínguez-García, Jose Luis; Escalante, Marisa; Martin Alberto, Molinuevo; Caracuel, Benito; Ramos, Francisco; Gkioulos, Vasileios; Katsikas, Sokratis; Bolstad, Hans Christian; Archer, Dan-Eric; Paunovic, Nikola; Gallart, Ramon; Rokkas, Theodoros; Arce, Alicia (Peer reviewed; Journal article, 2021)
      The technological leap of smart technologies and the Internet of Things has advanced the conventional model of the electrical power and energy systems into a new digital era, widely known as the Smart Grid. The advent of ...

    • Secure AIS with Identity-Based authentication and Encryption 

      Goudosis, Athanasios; Katsikas, Sokratis (Peer reviewed; Journal article, 2020)
      ABSTRACT: The Automatic Identification System (AIS) offers automatic traffic control and collision avoidance services to the maritime transportation sector worldwide. Because AIS lacks security mechanisms, it is vulnerable ...

    • Secure Automatic Identification System (SecAIS): Proof-of-Concept Implementation 

      Goudosis, Athanasios; Katsikas, Sokratis (Journal article; Peer reviewed, 2022)

    • Security Awareness of the Digital Natives 

      Gkioulos, Vasileios; Wangen, Gaute; Katsikas, Sokratis; Kavallieratos, George; Kotzanikolaou, Panayiotis (Journal article; Peer reviewed, 2017)
      Young generations make extensive use of mobile devices, such as smartphones, tablets and laptops, while a plethora of security risks associated with such devices are induced by vulnerabilities related to user behavior. ...

    • Security of the Cyber Enabled Ship 

      Kavallieratos, Georgios (Doctoral theses at NTNU;2021:198, Doctoral thesis, 2021)
      The maritime industry is actively engaged with developing remotely controlled and autonomous ships to sail in the near future. Remotely controlled and autonomous vessels have the potential to transform the maritime transport ...

    • Shipping 4.0: Security requirements for the Cyber-Enabled Ship 

      Kavallieratos, Georgios; Diamantopoulou, Vasiliki; Katsikas, Sokratis (Peer reviewed; Journal article, 2020)
      The cyber-enabled ship (C-ES) is either an autonomous or a remotely controlled vessel which relies on interconnected cyber physical-systems for its operations. Such systems are not well protected against cyberattacks. ...

    • Space Oddity: Space Cybersecurity Lessons from a Simulated OPS-SAT Attack 

      Calabrese, Matteo (Master thesis, 2023)
      The space industry is currently experiencing a rapid transformation, driven by innovations both in space and on the ground. Lower access barriers to orbit and the widespread use of commercial off-the-shelf components have ...

    • A systematic literature review of how cybersecurity-related behavior has been assessed 

      Kannelønning, Kristian Andreas; Katsikas, Sokratis (Journal article; Peer reviewed, 2023)
      Purpose Cybersecurity attacks on critical infrastructures, businesses and nations are rising and have reached the interest of mainstream media and the public’s consciousness. Despite this increased awareness, humans are ...

    • A Systematic Literature Review on RAMS analysis for critical infrastructures protection 

      Pirbhulal, Sandeep; Gkioulos, Vasileios; Katsikas, Sokratis (Peer reviewed; Journal article, 2021)
      Reliability, Availability, Maintainability, and Safety/Security (RAMS) analysis of Critical Infrastructures (CIs) can be applied to investigate their performance subjected to failure modes. The literature has witnessed ...

    • A systematic literature review on wireless security testbeds in the cyber-physical realm 

      Kampourakis, Vyron; Gkioulos, Vasileios; Katsikas, Sokratis (Peer reviewed; Journal article, 2023)
      The Cyber-Physical System (CPS) lies in the core of Industry 4.0, accelerating the convergence of formerly barricaded operational technology systems with modern information technology ones. Nevertheless, the increased ...

    • Threat Analysis for Smart Homes 

      Kavallieratos, Georgios; Chowdhury, Nabin; Katsikas, Sokratis; Gkioulos, Vasileios; Wolthusen, Stephen (Journal article; Peer reviewed, 2019)
      The development and deployment of highly dynamic, cyber+connected operational environments, such as smart homes, smart cities, and smart transportation systems, is increasing. The security analysis of such dynamic environments ...

    • Threat Analysis in Dynamic Environments: The Case of the Smart Home 

      Kavallieratos, Georgios; Gkioulos, Vasileios; Katsikas, Sokratis (Chapter, 2019)
      The rapid advancement of information and communication technologies has fostered the development and deployment of complex interrelated systems, many of which also present highly dynamic operational characteristics. These ...

    • Towards a Cyber-Physical Range for the Integrated Navigation System 

      Oruc, Aybars; Gkioulos, Vasileios; Katsikas, Sokratis (Peer reviewed; Journal article, 2022)
      The e-navigation concept was introduced by the IMO to enhance berth-to-berth navigation towards enhancing environmental protection, and safety and security at sea by leveraging technological advancements. Even though a ...

    • Towards a secure automatic identification system (AIS) 

      Goudossis, Athanassios; Katsikas, Sokratis (Journal article; Peer reviewed, 2018)
      The Automatic Identification System (AIS) is the emerging system for automatic traffic control and collision avoidance services in the maritime transportation sector. It is one of the cornerstone systems for improved marine ...

    • Towards automated threat-based risk assessment for cyber security in smarthomes 

      Pandey, Pankaj; Collen, Anastasija; Nijdam, Niels Alexander; Anagnostopoulos, Marios; Katsikas, Sokratis; Konstantas, Dimitri (Journal article; Peer reviewed, 2019)
      Cyber security is a concern of each citizen, especially when it comes to novel technologies surrounding us in our daily lives. Fighting a cyber battle while enjoying your cup of coffee and observing gentle lights dimming ...

    • Towards Improving Existing Online Social Networks’ Privacy Policies 

      Michota, Alexandra; Katsikas, Sokratis (Journal article; Peer reviewed, 2018)
      Abstract: The privacy policies of online social network (OSN) service providers are criticised as falling short of satisfying their users’ privacy expectations letting huge quantities of their personally identifiable ...

    • Towards Integration of Security and Safety Measures for Critical Infrastructures Based on Bayesian Networks and Graph Theory: A Systematic Literature Review 

      Pirbhulal, Sandeep; Gkioulos, Vasileios; Katsikas, Sokratis (Peer reviewed; Journal article, 2021)
      In recent times, security and safety are, at least, conducted in safety-sensitive or critical sectors. Nevertheless, both processes do not commonly analyze the impact of security risks on safety. Several scholars are focused ...

    • Understanding and Analyzing Emergent Misbehavior on Cyber-Physical Systems. 

      Kaloudi, Nektaria (Doctoral theses at NTNU;2023:114, Doctoral thesis, 2023)
      In a constantly evolving world, various technologies such as artificial intelligence (AI) influence the development of digital transformation through its decision-making capabilities. Cyber-physical systems (CPSs) are ...

    • Understanding Situation Awareness in SOCs, A Systematic Literature Review 

      Ofte, Håvard Jakobsen; Katsikas, Sokratis (Peer reviewed; Journal article, 2022)
      Situation awareness is shown through human factors research to be a valuable construct to understand and improve how humans perform while operating complex systems in critical environments. Within cyber security one such ...