Ewch i’r prif gynnwys
Georgios Theodorakopoulos

Dr Georgios Theodorakopoulos


Yr Ysgol Cyfrifiadureg a Gwybodeg

+44 29208 74855
Abacws, Ystafell 4.15, Ffordd Senghennydd, Cathays, Caerdydd, CF24 4AG


My research interests span privacy, security, and (computational) trust in mobile networks.

Privacy is my main current focus, and these are the questions I try to answer:

  • In what ways do we disclose private information (through smartphone apps, social networks, Internet-enabled devices)?
  • How can we protect our information without going off the grid (by adding some sort of noise)?
  • Most importantly, how can we reason concretely and quantitatively about privacy attacks and defences (e.g. in order to provide privacy guarantees, or to monetize private information appropriately)?

Personal page











  • Theodorakopoulos, G. 2015. The same-origin attack against location privacy. Presented at: 22nd ACM Conference on Computer and Communications Security, Denver, Colorado, USA, 12-126 October 2015 Presented at Ray, I., Hopper, N. and Jansen, R. eds.WPES '15 Proceedings of the 14th ACM Workshop on Privacy in the Electronic Society. ACM pp. 49-53., (10.1145/2808138.2808150)




  • Shokri, R., Theodorakopoulos, G., Troncoso, C., Hubaux, J. and Le Boudec, J. 2012. Protecting location privacy: Optimal strategy against localization attacks. Presented at: 19th ACM Conference on Computer and Communications Security (CCS 2012), Raleigh, NC, USA, 16-18 October 2012 Presented at Yu, T., Danezis, G. and Gligor, V. D. eds.Proceedings of the 2012 ACM Conference on Computer and Communications Security, CCS'12, Raleigh, NC, USA, October 16-18, 2012. ACM 2012. New York, NY: ACM pp. 617-627., (10.1145/2382196.2382261)


  • Shokri, R., Theodorakopoulos, G., Le Boudec, J. and Hubaux, J. 2011. Quantifying location privacy. Presented at: 2011 IEEE Symposium on Security and Privacy (SP), Berkeley, CA, USA, 22-25 May 2011 Presented at O’Conner, L. ed.Proceedings of the 2011 IEEE Symposium on Security and Privacy (SP). Los Alamitos, CA: IEEE pp. 247-262., (10.1109/SP.2011.18)






  • Theodorakopoulos, G. and Baras, J. S. 2004. Trust evaluation in ad-hoc networks. Presented at: WiSe '04:3rd ACM workshop on Wireless security, 1 October 2004 Presented at Jakobsson, M. and Perrig, A. eds.WiSe '04 Proceedings of the 3rd ACM workshop on Wireless security. New York, NY: ACM pp. 1-10., (10.1145/1023646.1023648)







  • CMT105 - Security Techniques (Autumn 2013, 2014, 2015, 2016) - redeveloped
  • CM3110 - Security (Autumn 2015, 2016) - redeveloped
  • CM3202 - Emerging Technologies [Privacy] (Spring 2014, 2015) - developed from ground up
  • CM3105 - Security and Forensics [Security] (Autumn 2014)
  • CM2302 - Pervasive Computing (Spring 2014, 2015)
  • CM1205 - Computer Architecture and Operating Systems (Spring 2013)


George Theodorakopoulos received the Diploma degree from the National Technical University of Athens, Greece, in 2002, and the M.S. and Ph.D. degrees from the University of Maryland, College Park, MD, USA, in 2004 and 2007, all in electrical and computer engineering.

He is a Lecturer at the School of Computer Science & Informatics, Cardiff University, since 2012. From 2007 to 2011, he was a Senior Researcher at the Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland. He is a coauthor (with John Baras) of the book Path Problems in Networks (Morgan & Claypool, 2010).

He received the Best Paper award at the ACM Workshop on Wireless Security, October 2004, for "Trust evaluation in ad-hoc networks" and the 2007 IEEE ComSoc Leonard Abraham prize for "On trust models and trust evaluation metrics for ad hoc networks." He coauthored the paper "Quantifying Location Privacy," which was runner-up for the 2012 PET Award (Award for Outstanding Research in Privacy Enhancing Technologies).

Education and qualifications

  • 2007: PhD in Electrical and Computer Engineering, University of Maryland, College Park, MD, USA
  • 2004: MSc in Electrical and Computer Engineering, University of Maryland, College Park, MD, USA
  • 2002: Diploma (5yr BSc) in Electrical and Computer Engineering, National Technical University of Athens, Greece

Career overview

  • 2012 - present: Lecturer, Cardiff University, School of Computer Science and Informatics
  • 2011 - 2012 Lecturer, University of Derby, School of Computing and Mathematics
  • 2007 - 2011 Senior Researcher, Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland

Anrhydeddau a dyfarniadau

Aelodaethau proffesiynol

Aelod o'r IEEE

Safleoedd academaidd blaenorol

  • 2018 - presennol: Uwch Ddarlithydd, Prifysgol Caerdydd, Ysgol Cyfrifiadureg a Gwybodeg
  • 2012 - 2018: Darlithydd, Prifysgol Caerdydd, Ysgol Cyfrifiadureg a Gwybodeg
  • 2011 - 2012 Darlithydd, Prifysgol Derby, Ysgol Cyfrifiadureg a Mathemateg
  • 2007 - 2011 Uwch Ymchwilydd, Ecole Polytechnique Federale de Lausanne (EPFL), Y Swistir

Pwyllgorau ac adolygu

  • 2015 - present: Deputy Director of Research
  • 2015 - present: Co-leader of Privacy and Security Priority Area
  • 2015 - present: Postgraduate Research Admissions Tutor
  • 2015 - present: Impact coordinator
  • 2014 - present: Member of International Committee
  • 2012 - present: Environmental Compliance Officer

Meysydd goruchwyliaeth

Rwy'n agored i bynciau newydd, ond mae gennyf ddiddordeb arbennig mewn goruchwylio myfyrwyr PhD ar

  • diogelwch a phreifatrwydd mewn dyfeisiau a rhwydweithiau IoT
  • Preifatrwydd mewn Dysgu Peiriant

Edrychwch ar fy nghyhoeddiadau i weld mwy o fanylion am y pynciau rwy'n gweithio arnynt ac am y dulliau rwy'n eu defnyddio yn fy ymchwil. Rwy'n fwy tebygol o oruchwylio myfyrwyr sy'n dangos i mi fod ganddynt ryw syniad o fy ymchwil.

Goruchwyliaeth gyfredol