Athanasios (Thanos) ANDREOU

Postdoctoral Researcher

CNRS, Université Grenoble Alpes

Bâtiment IMAG Université Grenoble Alpes 700, avenue centrale,

38401 Saint Martin d'Hères


Google Scholar page



I am a postdoctoral researcher at CNRS, Grenoble France, working on privacy and transparency in social media advertising. I obtained my PhD in 2019 from Sorbonne Université (while being based on EURECOM), under the supervision of Patrick Loiseau & Oana Goga.

I acquired my Diploma (5 years) in Electrical and Computer Engineering at the NTUA. I also have a MSc in Communications & Computer Security from EURECOM.

I am broadly interested in security and privacy, targeted advertising, social media, and data science.



Measuring the Facebook Advertising Ecosystem

A. Andreou, M. Silva, F. Benevenuto, O. Goga, P. Loiseau, A. Mislove

NDSS 2019 (The Network and Distributed System Security Symposium)

Auditing Data Brokers' Advertising Interfaces: Privacy Risks with Facebook's PII-based Targeting

G. Venkatadri, A. Andreou, Y. Liu, A. Mislove, K. Gummadi, P. Loiseau, O. Goga

IEEE S&P 2018 (IEEE Symposium on Security and Privacy Symposium)

Runner-up for the Caspar Bowden PET award for outstanding research in privacy enhancing technologies

Press coverage: WIRED The Telegraph Siècle digital Naked Security

Investigating Ad Transparency Mechanisms in Social Media: A Case Study of Facebook’s Explanations

A. Andreou, G. Venkatadri, O. Goga, K. Gummadi, P. Loiseau, A. Mislove

NDSS 2018 (The Network and Distributed System Security Symposium)

Press coverage: The Guardian QUARTZ Bloomberg Businessweek ABC

Identity vs. Attribute Disclosure Risks for Users with Multiple Social Profiles

A. Andreou, O. Goga, P. Loiseau

ASONAM 2017 (IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining) (17.2% acceptance rate)

Best paper award runner-up

Assessing the coverage of data collection campaigns on Twitter: A case study

V. Plachouras, Y. Stavrakas, A. Andreou

OTM Confederated International Conferences "On the Move to Meaningful Internet Systems, September 2013"




A tool to help you make sense of the ads you receive on Facebook