The Firm

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A leading IT Law, Data Protection and Privacy lawyer with long standing expertise and at the forefront of legal developments on TMT, Privacy and Data Protection and Cybersecurity, offering exceptional legal services tailored to technology driven organizations, through a comprehensive and business-oriented legal approach.

Well reputated for his knowledge and passion on the field, Spiros prides himeself on being business enablers, helping business readiness to data breaches and taking care of all complex opportunities and challenges towards business growth.

Understanding that data assets make your business unique and maping the roadmap to protect them and efficiently use them Spiros’ exceptional legal services help any entity to achieve extraordinary outcomes.

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Ensuring Resilience to Data Breaches

We help you navigate the legal complexity of the digital transformation landscape, and build resilience to data breaches that may impact your business

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Speaking Tech & Law

We know how technology works and we understand the environment and market in which you work. We are ready to help you operate your business in new ways and develop your cutting-edge ideas, providing excellent tech & law expert advice on all data matters, including artificial intelligence, Internet of Things, blockchain, and 5G.

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Adding real value to your business above and beyond

We are quick and efficient. 
We are the team you can trust and enjoy working with, looking after your business to the finest detail

Spiros joined POTAMITISVEKRIS Law Firm

Spiros Tassis announced that he has taken on a new role as the TMT & Privacy Partner at POTAMITISVEKRIS stating that “having been at the forefront of cutting-edge legal matters for many years, specializing in EmergingTechnologies, Privacy & DataProtection, Cybersecurity, Media and Telecommunications, joining such a team of exceptional legal professionals and the most pioneering law firm in Greece its like a natural progression for me. I look forward to combining my team’s TMT and Data Protection practices with the expertise of my new colleagues to deliver exceptional service, helping our clients address data and technology regulatory challenges and legal issues at the forefront of innovation and emerging technologies!”

Spiros Tassis is, since March 2024, Partner and Head of the TMT, Data Protection & Privacy practices at POTAMITISVEKRIS Law Firm (www.potamitisvekris.com), covering Data Compliance, Cybersecurity, AI and Emerging Technologies and Privacy!

Previously was the founder of Tassis & Associates Law Office in Athens Greece, and the Managing Partner of the Greek Office of ICT Legal Consulting (ICTLC). Together with his team of specialists, Spiros 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 he advised the same ministry on NIS Directive implementation and currently is a member of the AI in Justice committee.