Fabio Ferreira Kujawski > Mattos Filho > Sao Paulo, Brazil > Lawyer Profile

Mattos Filho
SÃO PAULO, SP, CEP 01403-001

Work Department

Data Protection and Cyber Security/Intellectual Property/Telecommunications/Technology, Innovation and Digital Businesses




Fabio has worked with technology, data protection, telecom, intellectual property, media and entertainment matters for over 20 years, with a focus on transactions, regulatory and contractual issues. Fabio is the co-author and editor of the book “Legal Trends in Technology and Intellectual Property in Brazil” (2014), and is an officer of the Brazilian Association of Information Technology and Telecommunications Law (ABDTIC).


Portuguese and English


Brazilian Association of Information Technology and Telecommunications Law (ABDTIC).


Bachelor of Laws – Pontifícia Universidade Católica de São Paulo (PUC-SP);

Master of Laws in International Economic Relations – Pontifícia Universidade Católica de São Paulo (PUC-SP).

Lawyer Rankings

Brazil > TMT: Telecoms

Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados‘ recent workload testifies to its strength in assisting foreign telecoms companies looking to establish operations in Brazil, as well as clients from other sectors seeking to expand activities towards the offering of telecoms-related services. The firm’s broad offering not only includes significant transactions and administrative litigation in the telecoms sector, but also covers strategic projects, commercial agreements, public bids and regulatory matters. Fabio Ferreira Kujawski stands out for his specialist knowledge of telecoms and technology issues; his notable areas of expertise include matters pertaining to fixed and mobile telephony, data transmission, broadcasting, satellites and submarine cables. Lisa Worcman is a key contact for issues before the Brazilian telecoms regulatory agency ANATEL. Senior associate Thays Castaldi Gentil is another name to note in the TMT practice, who combines experience in telecoms regulations, M&A and administrative litigation.

Brazil > TMT: Media

Bringing together lawyers with diverse expertise in the media and entertainment industry, Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados is well equipped to assist clients in tax, contractual and regulatory issues, including administrative proceedings. Brazilian and foreign clients turn to the team for assistance with copyright and commercial agreements, advertising issues and licensing of image rights; other areas of activity include advice on the structuring of new products and sports events. Lisa Worcman is the counsel of choice for several multinational conglomerates in the audiovisual industry. Fabio Ferreira Kujawski is also singled out for his experience in the entertainment sector.

Brazil > TMT: Cybersecurity and data privacy

The data protection and cybersecurity team at Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados has a breadth of expertise that ensures a steady flow of work from clients in the technology, healthcare, financial services, telecoms, insurance, retail and education sectors. In addition to assisting with the implementation of data protection compliance programmes, the department is also well versed in major data incidents, transnational data transfers and M&A due diligence. Paulo Brancher ‘has great knowledge of different areas of law that involve technology and data protection’; Fabio Ferreira Kujawski is another name to note in this space. Ana Carolina Heringer Castellano is seasoned in advising on domestic and cross-border data breaches, while Isabela Fernandes routinely advises high-profile clients on rules introduced by the recent Brazilian Data Protection Law and their implications for digital platforms and new products. Thiago Luís Sombra is also noted by clients for data privacy and cybersecurity matters.

Brazil > TMT: Tech, innovation and digital business

Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados’ team guides clients through the implementation of digital strategies and technology transactions, while also providing regulatory advice in various areas, including e-commerce, cloud computing, artificial intelligence (AI) and Internet of Things (IoT). Fabio Ferreira Kujawski and Paulo Brancher, who have comprehensive knowledge of civil and consumer law litigation, are regularly engaged by technology companies in relation to transactional, regulatory and contractual issues. The ‘highly capable and technical team’ is also noted for its track record in IT public procurement, new product launches, financing of start-ups, and data protection. The practice also benefits from a strong presence in Brasília, where ‘exceptional’ former state attorney Thiago Luís Sombra leads a team that represents clients before regulatory agencies, public authorities and the Supreme Federal Court in relation to tech litigation. Since publication the firm has further strengthened the team with the March-2022 hire of Luiz Felipe Di Sessa from Cescon, Barrieu, Flesch & Barreto Advogados.