Stefanos Gritzalis

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Faculty Members

Professor

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Email

sgritz@uniwa.gr

Brief CV

 

Stefanos Gritzalis is a Professor of Information and Communication Systems Security, at the Lab. of Systems Security, Dept. of Digital Systems, University of Piraeus, Greece (2019+) and Director of the Postgraduate Programme “MSc in Law and Information & Communication Technologies” (2020+).

He is a Member of the Board of the Hellenic Authority for Communication Security and Privacy (2020+).

He is a Deputy Member of the National Commission for Human Rights (2022+)

He was the Rector of the University of the Aegean, Greece (2014-2018).

He has acted as Special Secretary for the Hellenic Ministry for Administrative Reform and Electronic Governance (2009-2012).

Previously, he was a Professor at the University of the Aegean, Greece, School of Engineering, Dept. of Information and Communication Systems Engineering, and member of the Info-Sec-Lab Laboratory of Information and Communication Systems Security (2002-2019). He was the Head of the Dept. of Information and Communication Systems Engineering (2005-2009), Deputy Head of the Dept. of Information and Communication Systems Engineering (2012-2014), and Director of the Lab. of Information and Communication Systems Security (2005-2009).

He holds a BSc in Physics, an MSc in Electronic Automation, and a PhD in Information and Communications Security from the Department of Informatics and Telecommunications, University of Athens, Greece.

His published scientific work includes more than 14 books (including the book “Digital Privacy: Theory, Technologies and Practices”, co-edited by A. Acquisti, S. Gritzalis, C. Lambrinoudakis and S. De Capitani di Vimercati, Auerbach Publications, Taylor and Francis Group) and 37 book chapters. Moreover, his work has been published in 331 papers (147 in refereed journals and 184 in the proceedings of international refereed conferences and workshops). He has co-authored papers with more than 200 researchers from 30 countries during the last 30 years. The focus of his publications is on Information and Communications Security and Privacy. His most frequently cited papers have more than 11.000 citations, h-index=54, i10-index=172, as measured by Google Scholar.

He is listed, again, in the top 2% of the most cited researchers in the ICT domain around the globe, as ranked by researchers from Stanford University and published by Elsevier (October 2023)

He acts as Area Editor for the prestigious “IEEE Communications Surveys and Tutorials” journal (IF=34.4 in the Clarivate JCR report, ranked 1st in Telecommunications and Computer Science domains for 2023, 2022, 2021, 2020, 2019, 2018, 2017). He is the Editor-in-Chief or Editor or Editorial Board member in 35 journals and a Reviewer in more than 80 scientific journals. He has acted as Guest Editor in 35 journal special issues, he has been General Chair or Program Committee Chair in more than 50 international conferences and workshops, he has served as a Program Committee Member of more than 600 international conferences and workshops.

He has been the advisor of 17 completed PhD theses and has acted as external evaluator/examiner for more than 60 PhD students from Germany, Italy, Spain, India, Pakistan, Greece, etc.

Moreover, he has supervised more than 130 Master Theses and 200 First Diploma / BSc Theses.

He has been involved in several National and EU funded R&D projects receiving research and development grants of over € 6.0 million.

He has acted as External Evaluator for research proposals submitted to: ERC European Research Council, Swiss National Science Foundation (SNSF), Italian Ministry of University and Research, The Netherlands Organisation for Scientific Research, Belgian Fund for Scientific Research, Czech Science Foundation, FFG Austrian Research Promotion Agency, ETH Zurich Research Commission, Croatian Ministry of Science and Education, Slovenian Research Agency, South Africa’s National Research Foundation, Qatar Foundation – Qatar National Research Fund, Cyprus Research Promotion Foundation, The University of Nicosia Research Foundation in Cyprus, Hellenic Foundation for Research and Innovation, Hellenic General Secretariat for Research and Technology, Hellenic Ministry of Economy and Development ESF Operational Programme “HR Development, Education and Life Long Learning” etc. Moreover, he has acted as member of the 2015 IEEE Technical Recognition Award Selection Committee for the “IEEE Communications & Information Security Technical Recognition Award”.

His professional experience includes senior consulting and researcher positions in a number of private and public institutions. He was elected twice as Member of the Board (Secretary General, Treasurer) of the Greek Computer Society. He acts as member of the Hellenic Association for Information Systems AIS – Hellenic Chapter, the Association for Computing Machinery ACM, the Institute of Electrical and Electronics Engineers IEEE and the IEEE Communications Society “Communications and Information Security Technical Committee”.

Publications

I. JOURNALS

  1. Jeremiaha S. R., Chen H., Gritzalis S., Park J. H., “Leveraging application permissions and network traffic attributes for Android ransomware detection”,  Journal of Network and Computer Applications, Vol.230, 2024, Elsevier
  2. Tsohou A., Diamantopoulou V., Gritzalis S., Lambrinoudakis C., “Cyberinsurance: State of the Art, Trends and Future Directions”, International Journal of Information Security, Vol.22, pp.737-748, 2023, Springer
  3. Chatzoglou E., Kouliaridis V., Kambourakis G., Karopoulos G., Gritzalis S., “A hands-on gaze on HTTP/3 security through the lens of HTTP/2 and a public dataset”, Computers and Security, Vol.125, 2023, Elsevier
  4. Molla E., Rizomiliotis P., Gritzalis S., “Efficient searchable symmetric encryption supporting range queries“, International Journal of Information Security, Vol.22, pp.785-798, 2023, Springer
  5. Kitsiou A., Despotidi C., Kalloniatis C., Gritzalis S., “The role of users’ sociodemographic profile for accepting Biometric Systems: A Greek case study”, Future Internet, Vol.14 (11), 328, 2022, MDPI
  6. Vgena A., Kitsiou A., Kalloniatis C., Gritzalis S., “Determining the Role of Social Identity Attributes to the Protection of Users’ Privacy in Social Media”, Future Internet, Vol.14(9), 249, 2022, MDPI
  7. Diamantatos P., Kavallieratou E., Gritzalis S., “Directional Hinge Features for Writer Identification: The importance of the Skeleton and the effects of character size and pixel intensity “, Springer Nature Computer Science, Vol.3, No.56, 2022, Springer
  8. Simou S., Kalloniatis C., Gritzalis S., Katos V., Psalidas M., “Revised Forensic Framework Validation and Cloud Forensic Readiness“, International Journal of Electronic Governance, Vol.14, No.1/2, pp.236-263, 2022, Inderscience Publishers
  9. Sideri M., Fontaras A., Gritzalis S., “Exploring data subjects’ knowledge on the rights GDPR guarantees. An exploratory research in Greece“, International Journal of Electronic Governance, Vol.14, No.1/2, pp.28-57, 2022, Inderscience Publishers
  10. Kitsiou A., Tzortzaki E., Kalloniatis C., Gritzalis S., “Identifying privacy related requirements for the design of Self-adaptive privacy protections schemes in Social Networks”, Future Internet, 2021, Vol.13, No.23, MDPI

II. CONFERENCES

  1. Pattakou A., Diamantopoulou V., Kalloniatis C., Gritzalis S., “A Unified Framework for GDPR Compliance in Cloud Computing“, Proceedings of the the TRUSTBUS 2024 16th International Conference on Trust, Privacy and Security in Digital Business, in conjunction with ARES 2024 The 19th International Conference on Availability, Reliability and Security, M. Coetzee, S. Katsikas (Eds.), July 2024, Vienna, Austria, Springer LNCS
  2. Routzouni A., Gritzalis S., Vasilakis N.-D., Pouloudi N., “Public sector innovation through design thinking: Applying a participatory policy design practice to support the formulation of a national digital transformation strategy”, Proceedings of the ICEGOV 2021 14th International Conference on Theory and Practice of Electronic Governance, Loukis, E., Macadar, M. A., Meyerhoff, N. M. (Eds.), October 2021, Athens, Greece, ACM Press
  3. Kitsiou A., Tzortzaki E., Kalloniatis C., Gritzalis S., “Self Adaptive Privacy in Cloud Computing Environments: Identifying the major socio-technical concepts”, Proceedings of the CyberICPS 2020 6th Workshop on the Security of Industrial Control Systems and of Cyber-Physical Systems, F. Cuppens (Ed.), pp.117-132, September 2020, London, UK, Springer LNCS
  4. Skarkala M.-E., Maragkoudakis E., Gritzalis S., Mitrou L., “PP-TAN: a Privacy Preserving Multi-party Tree Augmented Naive Bayes Classifier”, Proceedings of the SEEDA CECNSM 2020 5th South East Europe Design, Automation, Computer Engineering, Computer Networks and Social Media Conference, September 2020, Corfu, Greece, IEEE CPS Conference Publishing Services
  5. Kitsiou A., Tzortzaki E., Kalloniatis C., Gritzalis S., “Measuring users’ socio-contextual attributes for Self-Adaptive Privacy within Cloud-Computing Environments”, Proceedings of the TRUSTBUS 2020 16th International Conference on Trust, Privacy and Security in Digital Business, E. Weippl (Ed.), September 2020, Regensburg, Germany, Springer LNCS
  6. Sideri M., Gritzalis S., “Are We Really Informed on the Rights GDPR Guarantees?“, Proceedings of the HAISA 2020 International Symposium on Human Aspects of Information Security & Assurance, N. Clarke, S. Furnell (Eds.), July 2020, Springer IFIP Advances in Information and Communication Technology series
  7. Simou S., Kalloniatis C., Gritzalis S., Katos V., “A Revised Forensic Process for Aligning the Investigation Process with the Design of Forensic-enabled Cloud Services“, Proceedings of the 8thInternational Conference one-Democracy 2019, S. Katsikas, V. Zorkadis (Eds.), pp.161-177, December 2019, Athens, Greece, Springer Communications in Computer and Information Science
  8. Sideri M., Fontaras A., Gritzalis S., “What Do We Know about our Rights to Data Protection? A Greek Case Study“, Proceedings of the 8thInternational Conference one-Democracy 2019, S. Katsikas, V. Zorkadis (Eds.), pp.18-33, December 2019, Athens, Greece, Springer Communications in Computer and Information Science
  9. Routzouni A., Deligiannis A., Gritzalis S., “A Generalized co-evaluation Model of Public Policies”, Proceedings of the MCIS 2019 13th Mediterranean Conference on Information Systems, September 2019, Naples, Italy, Springer Lecture Notes in Information Systems and Organisation
  10. Rizomiliotis P., Gritzalis S., “Simple Forward and Backward Private Searchable Symmetric Encryption Schemes with constant number of Roundtrips“, Proceedings of the ACM CCSW 2019 11th ACM Cloud Computing Security Workshop, C. Papamanthou, R. Sion (Eds.), pp.141-152, November 2019, London, UK, ACM Press

III. BOOKS

  1. Papadatos K., Rantos K., Makrygeorgou A., Koulouris K., Klontza S., Lambrinoudakis C., Gritzalis S., Xenakis C., Katsikas S., Karyda M., Tsohou A., Zacharis A., “Interoperable EU Risk Management Toolbox”, EU ENISA, 2023
  2. Lambrinoudakis C., Gritzalis S., Xenakis C., Katsikas S., Karyda M., Tsohou A., “Interoperable EU Risk Management Framework”, EU ENISA, 2022
  3. Lambrinoudakis C., Gritzalis S., Xenakis C., Katsikas S., Karyda M., Tsohou A., Papadatos K., Rantos K., Pavlosoglou Y., Gasparinatos S., Pantazis A., Zacharis A., “Compendium of Risk Management Frameworks with potential interoperability”, EU ENISA, 2022
  4. Katsikas S., Gritzalis S., Lambrinoudakis C., (Eds.), “Information and Systems Security in the Cyberspace”, 2021, New Technologies Pubs. (in Greek)
  5. Burmester M., Gritzalis S., Katsikas S., Chryssikopoulos V., (Eds.), “Modern Cryptography: Theory and Applications”, 2011, Papasotiriou Pubs.
  6. Lambrinoudakis C., Mitrou L., Gritzalis S., Katsikas S., (Eds.), “Privacy Protection and Information and Communication Technologies: Technical and Legal Issues”, 2010, Papasotiriou Pubs.
  7. Gritzalis S., Karygiannis T., Skianis C. (Eds.), “Security and Privacy in Mobile and Wireless Networking”, Troubador Publishing Ltd., Leicester, UK, 2009
  8. Acquisti A., Gritzalis S., Lambrinoudakis C., De Capitani di Vimercati S. (Eds.), “Digital Privacy: Theory, Technologies and Practices”, Auerbach Publications – Taylor and Francis, New York, 2008 [IEEE COMSOC Best Readings Topics on Communications and Information Systems Security: Books].
  9. Kambourakis G., Gritzalis S., Katsikas S., “Wireless and Mobile Communication Networks Security: Autonomous and Heterogenous Environments Bluetooth, IEEE 802.11, 802.16, UMTS”, 2006, Papasotiriou Pubs.
  10. Katsikas S., Gritzalis D., Gritzalis S., (Eds.), “Information Systems Security“, 2004, New Technologies Pubs. (in Greek)

IV. BOOK CHAPTERS

  1. Giannakas F., Papasalouros A., Kambourakis G., Gritzalis S., Voyiatzis I., “Mobile Games for Learning”, chapter in: The Cambridge Handbook of Cyber Behavior, Y. Zheng (Ed.), pp.285-318, 2022, Cambridge University Press
  2. Diamantopoulou V., Lambrinoudakis C., King J., Gritzalis S., “ EU GDPR: Towards a regulatory initiative for deploying a private digital era”, chapter in: Modern Socio-Technical Perspectives on Privacy, Bart Knijnenburg et al. (Eds.), pp.427-448, 2022, Springer
  3. Katsikas S., Gritzalis S., Lambrinoudakis C., “Introduction to Information and Systems Security”, chapter in: Information and Systems Security in the Cyberspace, S. Katsikas, S. Gritzalis, C. Lambrinoudakis (Eds.), pp.31-46, 2021, New Technologies Pubs. (in Greek)
  4. Sideri M., Gritzalis S., Diamantopoulou V., “Data collection techniques used as mechanisms for citizens’ surveillance and control: Vulnerable citizens – the new class”, chapter in: The Social Dimension of Sustainability, Kaila et al. (Eds.), 2020, Diadrasi Pubs. (in Greek)
  5. Gritzalis S., Sideri M., Kitsiou A., Tzortzaki E., Kalloniatis C., “Sustaining Social Cohesion in Information and Knowledge Society: The Priceless Value of Privacy”, chapter in: Recent Advances in Core Technologies in Informatics – Selected Papers in Honor of Professor Nikolaos Alexandris, G. Tsihrintzis, M. Virvou (Eds.), pp.177-198, 2020, Springer Learning and Analytics in Intelligent Systems
  6. Sideri M., Diamantopoulou V., Gritzalis S., “Privacy preservation in modern e-Participation environments: The Crowdsourcing case”, chapter in: The Digital Future, Doukidis (Ed.), pp. 297-306, 2019, Sideri Pubs. (in Greek)
  7. Kitsiou A., Tzortzaki E., Kalloniatis C., Gritzalis S., “Towards an integrated socio-technical approach for designing adaptive Privacy-Aware Services in Cloud computing”, chapter in: Cyber Influence and Congitive Threats, V. Benson, J. McAlaney (Eds.), pp.9-27, 2019, Academic Press, Elsevier
  8. Kalloniatis C., Pattakou A., Kavakli E., Gritzalis S., “Designing Secure and Privacy-aware Information Systems”, chapter in: Censorship, Surveillance, and Privacy: Concepts, Methodologies, Tools, and Applications, 1, pp.390-418, 2019, IGI Global
  9. Sideri M., Kitsiou A., Filippopoulou A., Kalloniatis C., Gritzalis S., “E-governance model in Education. Citizenship cultivation, enhancing participation and collective decision making in Greek educational structures through the use of social media”, chapter in: Innovation, Sustainability and Educational Design, Kaila et al. (Eds.), pp.88-107, 2019, Diadrasi Pubs. (in Greek)
  10. Sideri M., Kitsiou A., Tzortzaki E., Kalloniatis C., Gritzalis S., “‘… having freedom of speech, does not mean that we can write whatever we want. Our freedom stops where others’ rights of begin’. An educational intervention for enhancing privacy awareness in digital social networks”, chapter in: Sustainability, Sustainable Development, Nature and Human Nature: Our World? Quo Vadis?, Kaila et al. (Eds.), pp. 98-116, 2018, Diadrasi Pubs. (in Greek)