Editor for International Journal of Information security, collection on Interdisciplinary Perspectives for Socio-Technical Cybersecurity Threats, 2025
Program committee member for ACM/USENIX Internet Measurement Conference (IMC), 2024
Program committee member for ACM CoNEXT, 2024
Program Commitee co-chair for 5th European Interdisciplinary Cybersecurity Conference (EICC), 2024
Program committee member for The Web Conference, 2024
Program Committee co-chair for 9th International Symposium on Security and Privacy in Social Networks and Big Data (SocialSec), 2023
Reviewer for 1st IEEE Workshop on Security for Harassment Online, Protections, and Empowerment (SecHope), co-located with IEEE S&P, 2023
Dataset co-chair AAAI ICWSM, 2023
Expert Reviewer for the Hellenic Foundation for Research and Innovation, 2023
Program committee member for European Symposium on Research in Computer Security (ESORICS), 2023
Program committee member for ACM/USENIX Internet Measurement Conference (IMC), 2023
Program committee member for ACM Asia Conference on Computer and Communications Security (AsiaCCS), 2023
Member of the Board of Directors of the CYENS Research Centre of Excellence, 2020-2022, Executive Director, 2022
Program committee member for ACM/USENIX Internet Measurement Conference (IMC), 2022
Area Chair for IEEE ICNP, 2022
Program Commitee member for ACM Internet Measurement Conference, 2021
Area Chair for IEEE ICNP, 2021
Program committee member for ACM SIGMETRICS, 2020
Reviewer for IEEE Communications Magazine, 2019
Program committee member for ACM CoNEXT, 2019
Program Committee member for Cybersafety 2019, co-located with The Web Conference, 2019
Publicity co-chair for Cybersafety 2019, co-located with The Web Conference, 2019
Program committee member for AAAI ICWSM, 2019, 2020, 2021, 2022
Co-organizer of the Dagstuhl Seminar on "Cybersafety in Modern Online Social Networks", 2017
Program committee member for IEEE INFOCOM, 2016 and 2017
TPC co-chair, HotPost 2016, co-located with MobiHoc, 2016
Reviewer for IEEE/ACM Transactions on Networking, 2016
President of the Academic Personnel's Union at CUT
TPC co-chair, HotPost 2015, co-located with MobiHoc, 2015
Reviewer for ACM Transactions on the Web, 2014, 2015
Program committee member for IEEE INFOCOM, 2015
Reviewer for IEEE Transactions on Cloud Computing, 2015
Reviewer for ACM PODC, 2014
Program committee member for IEEE Global Internet, 2014
Program committee member for IEEE INFOCOM, 2014
Program committee member for WWW, 2013
Program committee member for NetEcon, 2012
Program committee member for IEEE Global Internet, 2012
Reviewer for IEEE Transactions on Mobile Computing, 2011, 2014
Reviewer for IEEE Transactions on Parallel and Distributed Systems, 2011
Reviewer for IEEE/ACM Transactions on Networking, 2011
Reviewer for ACM CoNext, 2010
External reviewer for IEEE ICDCS, 2011
Reviewer for Computer Networks, 2009, 2010, 2011, 2014
Reviewer for Performance Evaluation Journal, 2008