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Data Protection, Privacy and Cyber Security

With significant reputational issues at stake, data privacy is an increasingly complex and challenging management issue for all businesses, including in light of the GDPR and recent similar initiatives in other jurisdictions, the increasing use of biometrics, the ubiquity of cloud computing and the emphasis on data analytics.

“ The collaborative and practical nature of the advice provided is very impressive. ”

Data Privacy and Protection: The Legal 500 2021

Led from our Technology and Innovation practice, our team of data protection and privacy, technology and cyber law specialists provide advice to our wide range of clients, including several of the world’s leading multi-nationals and financial institutions, on data protection and privacy law and in relation to cyber security issues.

A leader in its field, our Technology and Innovation Group provides critical legal support during cyber-attacks and data security incidents. We advise on all data breach incident response matters, from the time a vulnerability is identified to the time it is confirmed and beyond. Matheson specialists regularly sit on clients’ incident response teams and guide clients through regulatory reporting to An Garda Síochána, the Data Protection Commission and as required, to other Regulatory Authorities such as the Central Bank.

We have significant experience in advising on data subject communications, third party vendor communications and the legal aspects of media communications. Our Group advises on all breach related legal work streams, to include corporate governance and commercial contract notification obligations.

Together with the Matheson Disputes and Investigations Group, we provide full support in relation to legal remedies such as take down injunctions, to stop the unlawful onward processing of data. In addition, our specialists advise on the full range of matters, from specific and strategic GDPR and ePrivacy compliance advice, through full compliance reviews, to advising clients on privacy by design for new products and services, data strategies for marketing, and the implementation of cookie and similar technologies.

Addressing data protection issues in structuring contractual frameworks, including in outsourcing and cloud arrangements and in multi-jurisdictional transactions, as well as guiding clients on ways of implementing compliant cross-border data flows, is a frequent focus of the Group

Experience Highlights

Advisory, Prevention and Training

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Investigations, Cyber Attack or Data Security

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Supervisory Authority Liaison and Notification

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News and Insights

2 min
12/09/2025

Doing Business In…2025

6 min
09/09/2025

The Representative Actions Directive and the Rise of Artificial Intelligence

15 min
25/06/2025

DPC Publishes Annual Report for 2024

5 min
10/02/2025

DPC Imposes Significant GDPR Fine on LinkedIn

5 min
09/02/2025

DPC Adopts Broad Interpretation of Definition of “Personal Data Breach”

5 min
28/01/2025

When Will a Request be Considered Excessive Under the GDPR?

Latest Cyber Security Updates

Cyber Bulletin 2024

Looking ahead, we take a closer look at cyber legislation on the horizon 2024 and 2025.

Cyber Bulletin 2023

This edition focuses on trends in relation to data breach notifications, key enforcement themes coming out of DPC regulatory inquiries, recent significant judgement by the CJEU. We take a closer look at what is on the horizon for NFTs in 2023 and trends to look out for in the AI space.

Cyber Bulletin 2022

In this edition, we focus on trends that you should look out for in the areas of cyber crime and data protection breaches.

Accolades

“The team helped navigate us through a high pressure event, with calm and excellent advice.”

Data Privacy and Protection: The European Legal 500

2025

Our Team

Anne-Marie

Bohan

Partner

Davinia

Brennan

Partner

Michael

Byrne

Partner

Deirdre

Crowley

Partner

Connor

Cassidy

Partner

Our Expertise

Digital Economy Group

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