Leonie Power | Fieldfisher
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Professional background

Professional background

I have provided strategic and practical advice on the full range of privacy and data protection issues affecting business operations over a period of more than 20 years.

I support a wide range of clients on new product development, big data analytics, international data transfers, ad tech privacy issues, digital marketing, AI systems and applications and AI governance.  I also provide support in developing and managing (often global) privacy compliance programmes and in relation to other multi-jurisdictional privacy projects.  I lead on the provision of data protection officer services to UK and international clients across different sectors.

My practice has spanned a wide range of businesses from start-ups to global brands, as well as public sector entities, and a broad range of sectors, including the technology, retail, media, gaming, travel, pensions, property management, ad tech, premiership football, telecommunications, life sciences and financial services sectors.

In addition, I am a cyber-breach specialist. I help clients to assess risk in the context of incidents and to navigate potentially complex notification matrices. 

I am a dual-qualified UK and EU (Ireland) lawyer and a member of the Faculty of the International Association of Privacy Professionals. As part of this Faculty, I give CIPP/E, Foundations of Privacy and Data Protection and AI Governance Professional training to privacy and AI pros based in many different international locations. 

I also hold FIP, CIPP/E, CIPM and AIGP status, an LLM Degree (Masters) and a Postgraduate Diploma in Intellectual Property Law (Distinction).

Authored pieces

All Resources
A digital rendering of a globe focused on Europe, displaying illuminated lines representing global connections or data transfer routes. The globe is highlighted in shades of purple against a dark, technology-inspired background with binary code patterns.
Data and Privacy
Webinar

Key provisions of the EU AI Act now apply: scope, AI literacy and prohibited practices

11.03.2025
Some provisions of the EU AI Act became applicable on 2nd February 2025, namely the scope and definitions, the provision on AI literacy and those on prohibited AI practices.
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A digital landscape of interconnected lines and dots forms a 3D grid, with neon blue and red highlights against a dark, gradient background. The image suggests data visualization, futuristic technology, or a networked system.
Technology and Data
Insight

Prohibited EU AI systems: make sure you are not caught out

31.01.2025
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A bright, glowing padlock icon in neon blue is displayed at the center against a dark background filled with floating binary code in shades of purple. The image conveys themes of digital security and encryption.
Data and Privacy
Insight

How to leverage DPIAs for AI risk assessments?

12.07.2024
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Three neon padlocks are displayed against a dark digital background filled with binary code. The left padlock is blue and locked, the center padlock is blue and unlocked, and the right padlock is pink and partially open. The image represents cybersecurity.
Data and Privacy
Insight

Transparency requirements under the EU AI Act and the GDPR: how will they co-exist?

11.04.2024
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Insight

A step closer to TCF v3.0 for the ad tech industry?

20.03.2024
On 7 March, 2024 the Court of Justice of the EU ("CJEU") issued its decision in the case of IAB Europe v APD.
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