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O'brien Sarah

Sarah O'Brien

Managing Associate

Sarah navigates the complex landscape of data and technology and brings a unique blend of legal expertise and creativity to her advice. 

D +44 20 7809 2481
M +44 7766 828 548

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Awards and Recognition

Recommended Lawyer
The Legal 500 UK 2026 - Data Protection, Privacy & Cybersecurity

Biography

Language - English
Jurisdiction - England & Wales

Skilled at manoeuvring the ever-changing landscape of technology, data and data privacy, Sarah provides strategic counsel across industries and has a track record of providing practical solutions that foster innovation whilst allowing her clients to build and maintain trust with their customers. With a keen eye for detail and a deep understanding of the legal frameworks governing data, Sarah specialises in advising clients on a range of issues, including the use and reuse of data; privacy and other transparency notices; data processing, data sharing and data transfer agreements; data licensing; strategies for international transfers of data; assessing data processing risk using DPIAs and LIAs; and the reporting of personal data breaches, including guiding clients through personal data breach investigations, preparing personal data breach notifications and liaising with regulators.

With a background in entertainment and advertising, Sarah is well versed in guiding marketers on how to use data for marketing purposes, including data collected via cookies and similar technologies and data used for behavioural advertising purposes. 

Sarah also has extensive experience in structuring and negotiating technology transactions that involve data, such as software licences; cloud computing contracts; data analytics partnerships; and AI development and collaboration agreements and licences.  

Experience

  • Consumer - Manufacturer of a glucose biosensor

    Preparing Terms of Sale, App Terms and Conditions and Website Terms of Use for new glucose monitoring device and accompanying mobile application. 

  • Consumer - Wellness app provider

    Drafting template Influencer Agreement and providing advertising clearance advice for launch campaign. 

  • Life Sciences - Global medical device manufacturer

    Reviewing the international personal data transfer laws in 20 countries and providing strategic advice on the personal data transfer strategy. 

  • Life Sciences - UK-based CRO

    Creating a GDPR-compliant strategy for transferring large amounts of sensitive data collected from a clinical trial, from the UK and EU to the US. 

  • Life Sciences - Continuous glucose monitoring system 

    Drafted a global privacy notice aimed at users of a CGM system to comply with data protection laws in over 100 countries.  

  • Sport - UK sport’s governing body

    Conducted a data audit in relation to its membership data and advised in relation to the design of a new membership system. 

  • Sport - National sports league

    Prepared a privacy notice for use in a mobile application for streaming live and recorded sports matches and prepared and delivered data protection training to the UK office.  

  • Technology - Global medical device manufacturer

    Reviewing the international personal data transfer laws in 20 countries and providing strategic advice on the personal data transfer strategy.

  • Technology - AML technology provider

    Providing advice on whether the use of a digital wallet ID in the provision of AML screening is personal data under GDPR.

  • Technology - Executive Recruitment

    Drafted and negotiated an AI Development and Collaboration Agreement with an AI platform provider.

专业领域

新闻与洞察

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Neural Network - November 2025

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How the Medical Device Regulations will impact manufacturers’ processing of personal data

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Data Protection update - October 2025

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Data Protection update - September 2025

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Neural Network - September 2025

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Data Protection

Data Protection update - August 2025

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Data Protection

Neural Network - August 2025

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