In a world where digital data plays a central role, its protection and compliant management have become essential for businesses, which are increasingly confronted with economic, ethical, and security challenges
Data permeates our daily lives, whether collected openly or through complex processes. In response, French and European regulations aim to protect citizens. Data management and cybersecurity have become critical challenges for businesses, often seen as tools for differentiation.
Whether personal or public, data are highly valuable strategic assets for public entities, businesses, and individuals. Their governance, though complex, presents economic, ethical, and security challenges. With the rise of cyber threats, citizens and consumers demand stronger protection for their information and complete transparency regarding its use.
At Oyat, we assist our clients in defining compliant and secure strategies that integrate both data management and cybersecurity law. Our lawyers stay informed on legislative changes and emerging practices to ensure the compliance of data processing activities, whether handling standard personal data or sensitive information such as health data.
Our team works closely with Data Protection Officers (DPOs) and cybersecurity leaders to secure systems, build stakeholder trust, and mitigate legal and operational risks related to cyberattacks. We turn data protection into a competitive advantage and a source of peace of mind in an increasingly complex digital landscape.
TYPES OF INTERVENTIONS
CYBERCRIME MATTERS AND IT SECURITY INCIDENTS
- Drafting and filing complaints related to cybercrime (such as attacks on critical IT infrastructure, criminal offenses involving personal data processing, etc.)
- Coordinating with relevant law enforcement agencies (BL2C, SDLC, etc.)
- Reporting personal data breaches and security incidents to regulatory authorities (CNIL, ANSSI, etc.)
- Managing communications and relationships with authorities
- Drafting incident response policies
- Conducting awareness programs and training for our clients’ teams
- Legal support for setting up data marketplaces, data hubs and data exchange platforms in compliance with applicable regulations (DGA, DA, RGPD, …)
- Drafting of legal conditions for data use
- Implementation of data governance policies for intermediation platforms
- Legal assistance in drafting and preparing Data Protection Impact Assessments (DPIAs), ensuring compliance with Privacy by Design principles during development, and proactively managing risks related to processing activities in support of DPOs
- Support in implementing GDPR compliance programs and audits, ensuring adherence to legal obligations and securing personal data processing activities
- Cross-functional support in implementing artificial intelligence systems utilizing personal data
- Assistance in drafting documentation (privacy policies, cookie policies, processing activity registers, etc.)
DATA TRANSFER OUTSIDE THE EU
- Assistance with the legal analysis of complex situations involving the transfer of personal data outside the European Economic Area (EEA)
- Guidance in selecting and adapting standard contractual clauses to specific circumstances
- Support in preparing binding corporate rules (BCR) files
MANAGEMENT OF SENSITIVE DATA
- Assistance in establishing healthcare data frameworks for the processing of health data (health data warehouses, reference frameworks, standard methodologies, etc.)
- Support in implementing sensitive data processing activities
“The firm has extensive expertise in the field of personal data protection and is very responsive, allowing the client to respond within the given timeframe” – Chambers
RANKINGS & AWARDS
Chambers 2026
- The dedicated team is ranked Band 4 in TMT
“The team has in-depth experience and expertise in IT issues in all their dimensions as well as high responsiveness and flexibility to adapt to urgent situations.”
“I would highlight the availability of teams, responsiveness to requests, technicality in analysing situations and pragmatism to find effective solutions for the client.”
“OYAT has expertise, good market knowledge, and a proactive approach.”
“The firm has extensive expertise in the field of personal data protection and is very responsive, allowing the client to respond within the given timeframe.”
“The team is noted for its pragmatism and offers innovative solutions and ideas.”
Legal 500 EMEA 2026
“A dynamic team of digital law experts who demonstrate a very high level of responsiveness.”
“Potential clients should know that OYAT excels in providing tailored solutions for businesses navigating the digital landscape. Their ability to bridge the gap between legal frameworks and technological advancements makes them a trusted partner for innovation-driven organizations.”
“OYAT’s IT and internet practice is highly regarded for its deep expertise in handling complex legal issues. The team’s ability to address matters such as IT contracts, data protection, and emerging technologies like AI ensures that clients receive cutting-edge and commercially sound advice.”
“The team stands out for its technical mastery of contractual issues related to intellectual property, liability, and cybersecurity, while remaining pragmatic and solution-oriented.”
Décideurs / Leaders League 2026
Innovation, technology & telecoms :
- IT, software & digital projects / Leading
- Data Protection Law and Cybersecurity / Excellent
- Digital Platforms Law and Applications / Excellent
Best Lawyers 2027
- Stéphanie Lapeyre-Castellane is recognized in Best Lawyers: Ones to Watch in France for work in Information Technology Law
Best Law Firms 2027
- National Tier 3 : Privacy and Data Security Law et Technology Law
- Regional Tier 1 – Paris : Information Technology Law, Privacy and Data Security Law et Technology Law
- Regional Tier 3 – Paris : Intellectual Property Law et Media Law
