Spiros Tassis

Spiros Tassis – TMT & Privacy ICTLC Greece

Spiros Tassis is Partner at POTAMITISVEKRIS with Office in Athens, Greece.


A leading IT Law, Data Protection and Privacy lawyer since 1999. Bar of Athens (Supreme Court), chair of the Hellenic Association of Data Protection and Privacy (HADPP), former co-chair of the IAPP Greek Knowledge Chapter, Associate of the Department of Applied Informatics, University of Macedonia, Guest Lecturer.


Together with his team, Spiros is offering external advice, as an independent lawyer, since 2010 and currently is running data management and compliance projects for major entities and organisations. Other key points of his career are: Head Corporate Legal Adviser to Cosmoline S.A., Corporate Legal Adviser in Vodafone Greece and Senior Associate for a big ticket law firm in Athens. In 2009 he was one of the key consultants of the Ministry of Communications in drafting a new law on national fiber optics networks (Ftth), in 2018 advised the same ministry on NIS Directive implementation and currently is a member of the #AI in Justice committee.


Spiros is also an Editor of the “Media and Telecommunications Law Review”, covering TMT Law and Privacy and is a co-author of “Fundamental Human Rights in Greece – Freedom of Expression and Press” (2017), “Personal Data – Analysis and Facts” (2016) and “Facebook, Blogs and Rights” (2012). He has also contributed with a “Legal Guide on Electronic Communications in Greece” to the Greek Law Digest (2012, 2016, 2018). He regularly publishes articles related to ICT and Privacy and annotations on the CJEU and national case law and he is honored to have seen his articles cited in national case-law.


Spiros co-organizes two annual DITE national conferences on TMT and Privacy Law (DITE and Infolaw). He is a visiting Lecturer in TMT and Privacy law, member of the SEV DPWG, has delivered many seminars on GDPR for the Athens Bar and is regularly invited to talk as an expert in legal conferences.