Spiros a leading IT Law, Data Protection and Privacy lawyer since 1999, has been one of the pioneers in the legal domain of TMT, data protection, and privacy in Greece. His expertise encompasses a range of complex projects related to data, digital technologies, and transformational tech initiatives, including cutting-edge areas like artificial intelligence and data post-processing. Chair of the Hellenic Association of Data Protection and Privacy (HADPP), former co-chair of the IAPP Greek Knowledge Chapter, member of the Special Committee “AI for Justice” of the Ministry of Justice and the “Standing Committee on Personal Data Law” of the same ministry and an Associate of the Department of Applied Informatics, University of Macedonia. He is also a visiting Lecturer in TMT and Privacy law.

Spiros is also an Editor of the "Media and Telecommunications Law Review", covering TMT Law and Privacy and is a co-author of “May the Algorithm – be ethical?” (2023), “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 national conferences on TMT and Privacy Law (DITE and Infolaw).