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William RM Long
Partner at Sidley Austin

Profile

WILLIAM LONG is a global co-leader of Sidley’s highly ranked Privacy and Cybersecurity practice and leads the EU Data Protection practice. He also serves on the firm’s COVID-19 Task Force. William advises international clients on a wide variety of GDPR, data protection, privacy, information security, social media, e-commerce and other regulatory matters.

William has been a member of the European Advisory Board of the International Association of Privacy Professionals (IAPP) and on the DataGuidance panel of data protection lawyers. He is also on the editorial board of e-Health Law & Policy and also assists with dplegal (“data privacy” legal), a networking group of in-house lawyers in life sciences companies examining international data protection issues.

Representative matters have included:

  • Advising numerous international companies on the GDPR.
  • Advising companies on data privacy issues with Big Data, Internet of Things and profiling.
  • Advising a global e-commerce company on dealing with an international data security breach.
  • Assisting a global manufacturing company with a global data protection project, including implementation of Binding Corporate Rules.

William was previously in-house counsel to one of the world’s largest international financial services groups. He has been a member of a number of working groups in London and Europe looking at the EU regulation of e-commerce and data protection and spent a year at the UK’s Financial Law Panel (established by the Bank of England) as assistant to the chief executive working on regulatory issues with online financial services.

William is recognized in Chambers UK 2021 for Data Protection and Information Law, with sources telling the publication “he is really good all round and has subject matter expertise” and “His guidance is thorough and he makes a difficult topic easily digestible.” William is “extremely knowledgeable, not just about what the law requires but also about what the regulators think, and about the landscape of the market.” (Chambers UK 2020) He was described as bringing “a broad depth of knowledge on the key areas of law,” (Chambers UK 2019) and clients cite him as “very knowledgeable, very practical and always solution-driven.” (Chambers UK 2017) He has also been listed in Best Lawyers 2021 for Privacy & Data Protection Law and Who's Who Legal: Data 2021 for Data Privacy & Protection and Data Security and Information Technology.

William is also the author of a new book on the EU General Data Protection Regulation and a contributor to a number of books on data protection, including leading legal textbooks published by BNA in the area of privacy, cloud computing and the use of health data. William has been interviewed widely for his thought leadership, including in such leading publications as the international New York Times, Financial Times and The Guardian and writes for a number of publications including Data Protection Law & Policy, Computer Weekly, Cloud Pro and CIO Today.

Agenda Sessions

  • INTERACTIVE DISCUSSION: New Legal Challenges for Managing Clinical Research Data

    10:00
  • On-going Tensions Surrounding GDPR and Data Sharing for the Pharmaceutical Industry

    10:00

Speakers at this event