Work Experience

Security Researcher September 2018 - present

Brave Software, London, UK

Fields of Research: Web Security & Privacy, Fraud Detection & Prevention, Bot Detection


Assistant Researcher March 2014 - August 2018

Distributed Computing Systems Laboratory (DCS Lab), Institute of Computer Science (ICS),
Foundation for Research and Technology - Hellas (FORTH)

Supervisor: Prof. Evangelos P. Markatos, Dr. Sotiris Ioannidis
Participation in the EU-funded projects SysSec, ForToo, TRACER.
Fields of Research: Web Fingerprinting, Privacy and Anonymity, Network Security


Research Intern October 2016 - February 2017

Telefonica I+D, Barcelona, Spain

Supervisors: Dr. Nicolas Kourtellis
Fields of Research: Web Privacy
Summary: We conduct the first to our knowledge full-scale longitudinal study about Cookie Synchronization in the wild. In particular, we investigate this mechanism, which is used as a workaround for same-origin policy along with the privacy leak it causes to the users.


Research Intern November 2015 - March 2016

Telefonica I+D, Barcelona, Spain

Supervisors: Dr. Nikolaos Laoutaris, Dr. Nicolas Kourtellis
Fields of Research: Web Advertising & Privacy
Summary: We measure the monetary cost the advertisers pay for the user's private data. By tapping on programmatic auctions and RTB protocol, we train a model, that uses as input the private data the user leaks, to extract the per-impression cost paid at real-time, either when the price is encrypted or not.


Assistant Researcher January 2012 . February 2014

Distributed Computing Systems Laboratory (DCS Lab),
Institute of Computer Science (ICS),
Foundation for Research and Technology - Hellas (FORTH)

Supervisor: Prof. Evangelos P. Markatos
Participation in the EU-funded project SysSec.
Fields of Research: Network Security, Privacy and Anonymity, Distributed Systems.


Teaching Activities January 2012 . Present

Computer Science Department, University of Crete, Greece

Teaching Assistance in the courses:


Undergraduate Trainee September 2011 . December 2011

Distributed Computing Systems Laboratory (DCS Lab),
Institute of Computer Science (ICS),
Foundation for Research and Technology - Hellas (FORTH)

Supervisor: Prof. Evangelos P. Markatos
Fields of Research: Web Security & Privacy