The Secretariat operates at the directorate level.


Photo κ. Zorkadi

Vasileios Zorkadis

Director of the Secretariat

Short CV


Ηe has been working as the Secretariat’s Director of the Hellenic Data Protection Authority since 2004, while from 1999 to 2003 he was head of Auditors’ Department. He received his Diploma in Electrical Engineering from Aristotle University of Thessaloniki, Greece, carried out postgraduate studies in Informatics and holds a PhD on Security of Computer Networks from University of Karlsruhe, Germany. He is founding member and current president of the “Hellenic Scientific Council for the Information Society”. He is author or co-author of books on ‘Cryptography’, and ‘Information Theory’ and of over 60 journal and conference papers on security and privacy protection. Also, parallel to his work in the Hellenic Data Protection Authority, he taught for almost twenty years in Greek universities courses on Information Theory, Information Security, Cryptography, Computer Networks, Digital Communications, Simulation, and Software Engineering.


It consists of four departments:

Auditors' Department


Auditors have a legal or IT background and are responsible, among others, for the following tasks:

  • To conduct administrative audits in files containing personal data.
  • To issue regulatory acts pertaining to special matters arising from the relevant legislation on data protection.
  • To issue directives with an aim to enhance the uniform implementation of regulations applicable to the processing of personal data.
  • To examine complaints lodged by a data subject, or by a body, organization or association in accordance with Article 80 and to cooperate with other supervisory authorities for the investigation of the complaints, to issue decisions, recommendations and suggestions for Controllers, and report violations to administrative and judicial authorities.
  • To draw up the Authority’s annual report of activities.
  • To provide, upon request, provide information to any data subject concerning the exercise of their rights under the GDPR.
  • To cooperate with and provide mutual assistance to other supervisory authorities, including sharing information, with a view to ensuring the consistency of application and enforcement of the GDPR.
  • To approve codes of conduct which provide sufficient safeguards, pursuant to Article 40(5) GDPR and to approve certification criteria of pursuant to Article 42(5) GDPR.

Head of the Department: Dr Zoe Kardasiadou*


Legal auditors:

Dr Maria Alikakou, Evanthia Chatziliassi*, Anastasia Kaniklidou, Eleni Kapralou, Kyriaki Karakasi, Fotini Karvela, Kalliopi Karveli, Dr Charicleia Latsiou, Dr Eleni Maragou, Eleni Martsoukou, Vasiliki Milona*, Stefania Plota, Theodora Toutziaraki*, Anastasia Tritaki, Evmorfia Iosifina Tsakiridou, Charis Symeonidou, Dr Dimitrios Zografopoulos*.

ICT auditors:

Dr Athina Bourka*, Katerina Chatzidiakou, Dr Pantelis Kammas, Dr Konstantinos Limniotis, Ioannis Lykotrafitis, Dr Alexandra Michota, Georgia Panagopoulou, Spiros Papastergiou, Dr Georgios Rousopoulos, Leonidas Roussos, Dr Efrossini Siougle, Dr Panagiotis Tsopelas.

*on secondment/leave


Communications Department


The Department of Communications is responsible for the following tasks:

  • To assist the HDPA in developing and implementing its communication strategy.
  • To monitor the media with regard to issues related to the protection of personal data.
  • To cater for the Public Relations of the HDPA and communicate with agencies, bodies and institutions in the public and private sectors as well as data protection authorities abroad, competent EU institutions and international organisations.
  • To organize seminars, conferences and other events pertinent to the areas of competence of the HDPA.
  • To issue information leaflets, make press announcements and help develop radio and TV spots promoting the mission and the areas of competence of the HDPA.
  • To set up, maintain and update the Authority's library, the archive of Greek and foreign publications, the archive of decisions of international bodies and EU institutions pertinent to data protection.
  • To edit, proofread, manage the publication of the Annual Report of the HDPA and contribute to its drawing up.

Head of the Department: Dr Elias Athanasiadis


Amalia Logiaki, Georgia Georgiou.


Administration Department


The Administration Department is in charge of the following tasks:

  • To cater for the secretarial support of the Authority (registry, minutes, personnel files, typing, computer applications, etc.).
  • To manage personnel-related issues, including the keeping of personnel files, and manage the computer network infrastructure.

Head of the Department: Aimilia Chrysovelidi


Secretary to the President: Georgia Palaiologou

Konstantinos Aidinis, Roula Avgerinopoulou, Ioannis Ballos, Melpomeni Giannaki*, Antonis Makkas*, Lambros Nikolaou, Georgia Palaiologou, Andreas Papadopoulos, Eirini Papageorgopoulou, Eleni Patsoura, Symeon Petrou, Smaragda Printezi, Vasiliki Psarrakou, Ioannis Samios, Evangelia Zervou.

*on secondment/leave


Finance Department


The Finance Department is in charge of the following tasks:

  • To cater for the financial affairs of the Authority (budget, payroll, payment orders, procurement of office supplies, etc.).
  • To prepare the HDPA's budget and handle its execution and amendments.

Head of the Department: Maria Kokkinaki


Konstantinos Kafiris, Fotini Papaliosa, Eleni Patsoura.


For more detailed information about the organization of the Hellenic Data Protection Authority see article 18 Law 4624/2019.